GH
gene heskett
Tue, Apr 9, 2024 11:22 AM
On 4/9/24 06:54, Jon Bondy wrote:
I have used TPU for years, and have not experienced this hardening. Has
anyone else??
Jon
On 4/8/2024 11:33 PM, gene heskett via Discuss wrote:
On 4/8/24 21:46, Todd Allen via Discuss wrote:
I expect TPU, perhaps 95A or a bit softer, ought to be a good choice
for this.
I would question the long term softness of TPU. I figured it would be
ideal to serve as a bumper between the knob on the end of a vise
handle and the hole in the vise screw it ran thru. Nice, when freshly
printed, had the desired effect but a year later it is considerably
harder stuff.
This does not bode well for something I fully expect to last a century
or more with bare hands on it. What I bought and still have half a
roll of, was rated Shore 95. Does anyone have any advice for a more
stable with time product?
The other, less than ideal result was the excess stringing that took
considerable effort to clean up. Magic recipes to control that with
direct drive extruders welcomed.
Thanks all.
Cheers, Gene Heskett, CET.
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
On 4/9/24 06:54, Jon Bondy wrote:
> I have used TPU for years, and have not experienced this hardening. Has
> anyone else??
>
> Jon
>
> On 4/8/2024 11:33 PM, gene heskett via Discuss wrote:
>> On 4/8/24 21:46, Todd Allen via Discuss wrote:
>>> I expect TPU, perhaps 95A or a bit softer, ought to be a good choice
>>> for this.
>>>
>> I would question the long term softness of TPU. I figured it would be
>> ideal to serve as a bumper between the knob on the end of a vise
>> handle and the hole in the vise screw it ran thru. Nice, when freshly
>> printed, had the desired effect but a year later it is considerably
>> harder stuff.
>>
>> This does not bode well for something I fully expect to last a century
>> or more with bare hands on it. What I bought and still have half a
>> roll of, was rated Shore 95. Does anyone have any advice for a more
>> stable with time product?
The other, less than ideal result was the excess stringing that took
considerable effort to clean up. Magic recipes to control that with
direct drive extruders welcomed.
Thanks all.
Cheers, Gene Heskett, CET.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
JJ
jon jonbondy.com
Tue, Apr 9, 2024 11:38 AM
Stringing can be a problem, but I know that properly set up printers can
minimize this almost to the point of eliminating it. My Prusa MK3 was
perfect. The MK4 is OK, as is the XL, but there can be annoying
surprises. A small torch/flame can be helpful in melting the stringing
away.
Jon
On 4/9/2024 7:22 AM, gene heskett wrote:
On 4/9/24 06:54, Jon Bondy wrote:
I have used TPU for years, and have not experienced this hardening.
Has anyone else??
Jon
On 4/8/2024 11:33 PM, gene heskett via Discuss wrote:
On 4/8/24 21:46, Todd Allen via Discuss wrote:
I expect TPU, perhaps 95A or a bit softer, ought to be a good
choice for this.
I would question the long term softness of TPU. I figured it would
be ideal to serve as a bumper between the knob on the end of a vise
handle and the hole in the vise screw it ran thru. Nice, when
freshly printed, had the desired effect but a year later it is
considerably harder stuff.
This does not bode well for something I fully expect to last a
century or more with bare hands on it. What I bought and still have
half a roll of, was rated Shore 95. Does anyone have any advice for
a more stable with time product?
The other, less than ideal result was the excess stringing that took
considerable effort to clean up. Magic recipes to control that with
direct drive extruders welcomed.
Thanks all.
Cheers, Gene Heskett, CET.
Stringing can be a problem, but I know that properly set up printers can
minimize this almost to the point of eliminating it. My Prusa MK3 was
perfect. The MK4 is OK, as is the XL, but there can be annoying
surprises. A small torch/flame can be helpful in melting the stringing
away.
Jon
On 4/9/2024 7:22 AM, gene heskett wrote:
> On 4/9/24 06:54, Jon Bondy wrote:
>> I have used TPU for years, and have not experienced this hardening.
>> Has anyone else??
>>
>> Jon
>>
>> On 4/8/2024 11:33 PM, gene heskett via Discuss wrote:
>>> On 4/8/24 21:46, Todd Allen via Discuss wrote:
>>>> I expect TPU, perhaps 95A or a bit softer, ought to be a good
>>>> choice for this.
>>>>
>>> I would question the long term softness of TPU. I figured it would
>>> be ideal to serve as a bumper between the knob on the end of a vise
>>> handle and the hole in the vise screw it ran thru. Nice, when
>>> freshly printed, had the desired effect but a year later it is
>>> considerably harder stuff.
>>>
>>> This does not bode well for something I fully expect to last a
>>> century or more with bare hands on it. What I bought and still have
>>> half a roll of, was rated Shore 95. Does anyone have any advice for
>>> a more stable with time product?
>
> The other, less than ideal result was the excess stringing that took
> considerable effort to clean up. Magic recipes to control that with
> direct drive extruders welcomed.
>
> Thanks all.
>
> Cheers, Gene Heskett, CET.
NH
nop head
Tue, Apr 9, 2024 12:12 PM
I have known Filaflex to fall to bits after a while. I switched the Ninja
for TPU and have not had any problems with that.
On Tue, 9 Apr 2024 at 12:39, jon jonbondy.com via Discuss <
discuss@lists.openscad.org> wrote:
Stringing can be a problem, but I know that properly set up printers can
minimize this almost to the point of eliminating it. My Prusa MK3 was
perfect. The MK4 is OK, as is the XL, but there can be annoying
surprises. A small torch/flame can be helpful in melting the stringing
away.
Jon
On 4/9/2024 7:22 AM, gene heskett wrote:
On 4/9/24 06:54, Jon Bondy wrote:
I have used TPU for years, and have not experienced this hardening.
Has anyone else??
Jon
On 4/8/2024 11:33 PM, gene heskett via Discuss wrote:
On 4/8/24 21:46, Todd Allen via Discuss wrote:
I expect TPU, perhaps 95A or a bit softer, ought to be a good
choice for this.
I would question the long term softness of TPU. I figured it would
be ideal to serve as a bumper between the knob on the end of a vise
handle and the hole in the vise screw it ran thru. Nice, when
freshly printed, had the desired effect but a year later it is
considerably harder stuff.
This does not bode well for something I fully expect to last a
century or more with bare hands on it. What I bought and still have
half a roll of, was rated Shore 95. Does anyone have any advice for
a more stable with time product?
The other, less than ideal result was the excess stringing that took
considerable effort to clean up. Magic recipes to control that with
direct drive extruders welcomed.
Thanks all.
Cheers, Gene Heskett, CET.
I have known Filaflex to fall to bits after a while. I switched the Ninja
for TPU and have not had any problems with that.
On Tue, 9 Apr 2024 at 12:39, jon jonbondy.com via Discuss <
discuss@lists.openscad.org> wrote:
> Stringing can be a problem, but I know that properly set up printers can
> minimize this almost to the point of eliminating it. My Prusa MK3 was
> perfect. The MK4 is OK, as is the XL, but there can be annoying
> surprises. A small torch/flame can be helpful in melting the stringing
> away.
>
> Jon
>
> On 4/9/2024 7:22 AM, gene heskett wrote:
> > On 4/9/24 06:54, Jon Bondy wrote:
> >> I have used TPU for years, and have not experienced this hardening.
> >> Has anyone else??
> >>
> >> Jon
> >>
> >> On 4/8/2024 11:33 PM, gene heskett via Discuss wrote:
> >>> On 4/8/24 21:46, Todd Allen via Discuss wrote:
> >>>> I expect TPU, perhaps 95A or a bit softer, ought to be a good
> >>>> choice for this.
> >>>>
> >>> I would question the long term softness of TPU. I figured it would
> >>> be ideal to serve as a bumper between the knob on the end of a vise
> >>> handle and the hole in the vise screw it ran thru. Nice, when
> >>> freshly printed, had the desired effect but a year later it is
> >>> considerably harder stuff.
> >>>
> >>> This does not bode well for something I fully expect to last a
> >>> century or more with bare hands on it. What I bought and still have
> >>> half a roll of, was rated Shore 95. Does anyone have any advice for
> >>> a more stable with time product?
> >
> > The other, less than ideal result was the excess stringing that took
> > considerable effort to clean up. Magic recipes to control that with
> > direct drive extruders welcomed.
> >
> > Thanks all.
> >
> > Cheers, Gene Heskett, CET.
> _______________________________________________
> OpenSCAD mailing list
> To unsubscribe send an email to discuss-leave@lists.openscad.org
>
JJ
jon jonbondy.com
Tue, Apr 9, 2024 12:13 PM
I have been strictly using NinjaTek Cheetah for the last few years, with good success.
On 4/9/2024 8:12 AM, nop head wrote:
I have known Filaflex to fall to bits after a while. I switched the Ninja for TPU and have not had any problems with that.
On Tue, 9 Apr 2024 at 12:39, jon jonbondy.comhttp://jonbondy.com via Discuss <discuss@lists.openscad.orgmailto:discuss@lists.openscad.org> wrote:
Stringing can be a problem, but I know that properly set up printers can
minimize this almost to the point of eliminating it. My Prusa MK3 was
perfect. The MK4 is OK, as is the XL, but there can be annoying
surprises. A small torch/flame can be helpful in melting the stringing
away.
Jon
On 4/9/2024 7:22 AM, gene heskett wrote:
On 4/9/24 06:54, Jon Bondy wrote:
I have used TPU for years, and have not experienced this hardening.
Has anyone else??
Jon
On 4/8/2024 11:33 PM, gene heskett via Discuss wrote:
On 4/8/24 21:46, Todd Allen via Discuss wrote:
I expect TPU, perhaps 95A or a bit softer, ought to be a good
choice for this.
I would question the long term softness of TPU. I figured it would
be ideal to serve as a bumper between the knob on the end of a vise
handle and the hole in the vise screw it ran thru. Nice, when
freshly printed, had the desired effect but a year later it is
considerably harder stuff.
This does not bode well for something I fully expect to last a
century or more with bare hands on it. What I bought and still have
half a roll of, was rated Shore 95. Does anyone have any advice for
a more stable with time product?
The other, less than ideal result was the excess stringing that took
considerable effort to clean up. Magic recipes to control that with
direct drive extruders welcomed.
Thanks all.
Cheers, Gene Heskett, CET.
I have been strictly using NinjaTek Cheetah for the last few years, with good success.
On 4/9/2024 8:12 AM, nop head wrote:
I have known Filaflex to fall to bits after a while. I switched the Ninja for TPU and have not had any problems with that.
On Tue, 9 Apr 2024 at 12:39, jon jonbondy.com<http://jonbondy.com> via Discuss <discuss@lists.openscad.org<mailto:discuss@lists.openscad.org>> wrote:
Stringing can be a problem, but I know that properly set up printers can
minimize this almost to the point of eliminating it. My Prusa MK3 was
perfect. The MK4 is OK, as is the XL, but there can be annoying
surprises. A small torch/flame can be helpful in melting the stringing
away.
Jon
On 4/9/2024 7:22 AM, gene heskett wrote:
> On 4/9/24 06:54, Jon Bondy wrote:
>> I have used TPU for years, and have not experienced this hardening.
>> Has anyone else??
>>
>> Jon
>>
>> On 4/8/2024 11:33 PM, gene heskett via Discuss wrote:
>>> On 4/8/24 21:46, Todd Allen via Discuss wrote:
>>>> I expect TPU, perhaps 95A or a bit softer, ought to be a good
>>>> choice for this.
>>>>
>>> I would question the long term softness of TPU. I figured it would
>>> be ideal to serve as a bumper between the knob on the end of a vise
>>> handle and the hole in the vise screw it ran thru. Nice, when
>>> freshly printed, had the desired effect but a year later it is
>>> considerably harder stuff.
>>>
>>> This does not bode well for something I fully expect to last a
>>> century or more with bare hands on it. What I bought and still have
>>> half a roll of, was rated Shore 95. Does anyone have any advice for
>>> a more stable with time product?
>
> The other, less than ideal result was the excess stringing that took
> considerable effort to clean up. Magic recipes to control that with
> direct drive extruders welcomed.
>
> Thanks all.
>
> Cheers, Gene Heskett, CET.
_______________________________________________
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org<mailto:discuss-leave@lists.openscad.org>
GH
gene heskett
Tue, Apr 9, 2024 3:23 PM
On 4/9/24 07:38, jon jonbondy.com wrote:
Stringing can be a problem, but I know that properly set up printers can
minimize this almost to the point of eliminating it. My Prusa MK3 was
perfect. The MK4 is OK, as is the XL, but there can be annoying
surprises. A small torch/flame can be helpful in melting the stringing
away.
Jon
Might be a good hint, bic's long bbq lighters are what I have. I'll
give it a try, thanks. As for the prusa's, I gave up on the mk3s, too
small for my project and I tried several brands of hot ends trying to
stop the leaks and gave up. Never fed it pla, but petg, and the 240C is
too hot for it. 240C is too hot for any hot end using an alu block, the
stuff is too soft to hold the nozzle thread. Best is a QIDI XMAX-3,
gobbles it all once flow is calibrated. A full corexy, no leaks, input
shaper std, 4x faster than the mk3s, near same price at under a kilo$.
325x325 bed. Will be the smallest when I'm done rebuilding 2 other even
bigger printers. An ender5+, and a tronxy-400.
Take care & stay well Jon,
On 4/9/2024 7:22 AM, gene heskett wrote:
On 4/9/24 06:54, Jon Bondy wrote:
I have used TPU for years, and have not experienced this hardening.
Has anyone else??
Jon
On 4/8/2024 11:33 PM, gene heskett via Discuss wrote:
On 4/8/24 21:46, Todd Allen via Discuss wrote:
I expect TPU, perhaps 95A or a bit softer, ought to be a good
choice for this.
I would question the long term softness of TPU. I figured it would
be ideal to serve as a bumper between the knob on the end of a vise
handle and the hole in the vise screw it ran thru. Nice, when
freshly printed, had the desired effect but a year later it is
considerably harder stuff.
This does not bode well for something I fully expect to last a
century or more with bare hands on it. What I bought and still have
half a roll of, was rated Shore 95. Does anyone have any advice for
a more stable with time product?
The other, less than ideal result was the excess stringing that took
considerable effort to clean up. Magic recipes to control that with
direct drive extruders welcomed.
Thanks all.
Cheers, Gene Heskett, CET.
Cheers, Gene Heskett, CET.
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
On 4/9/24 07:38, jon jonbondy.com wrote:
> Stringing can be a problem, but I know that properly set up printers can
> minimize this almost to the point of eliminating it. My Prusa MK3 was
> perfect. The MK4 is OK, as is the XL, but there can be annoying
> surprises. A small torch/flame can be helpful in melting the stringing
> away.
>
> Jon
>
Might be a good hint, bic's long bbq lighters are what I have. I'll
give it a try, thanks. As for the prusa's, I gave up on the mk3s, too
small for my project and I tried several brands of hot ends trying to
stop the leaks and gave up. Never fed it pla, but petg, and the 240C is
too hot for it. 240C is too hot for any hot end using an alu block, the
stuff is too soft to hold the nozzle thread. Best is a QIDI XMAX-3,
gobbles it all once flow is calibrated. A full corexy, no leaks, input
shaper std, 4x faster than the mk3s, near same price at under a kilo$.
325x325 bed. Will be the smallest when I'm done rebuilding 2 other even
bigger printers. An ender5+, and a tronxy-400.
Take care & stay well Jon,
> On 4/9/2024 7:22 AM, gene heskett wrote:
>> On 4/9/24 06:54, Jon Bondy wrote:
>>> I have used TPU for years, and have not experienced this hardening.
>>> Has anyone else??
>>>
>>> Jon
>>>
>>> On 4/8/2024 11:33 PM, gene heskett via Discuss wrote:
>>>> On 4/8/24 21:46, Todd Allen via Discuss wrote:
>>>>> I expect TPU, perhaps 95A or a bit softer, ought to be a good
>>>>> choice for this.
>>>>>
>>>> I would question the long term softness of TPU. I figured it would
>>>> be ideal to serve as a bumper between the knob on the end of a vise
>>>> handle and the hole in the vise screw it ran thru. Nice, when
>>>> freshly printed, had the desired effect but a year later it is
>>>> considerably harder stuff.
>>>>
>>>> This does not bode well for something I fully expect to last a
>>>> century or more with bare hands on it. What I bought and still have
>>>> half a roll of, was rated Shore 95. Does anyone have any advice for
>>>> a more stable with time product?
>>
>> The other, less than ideal result was the excess stringing that took
>> considerable effort to clean up. Magic recipes to control that with
>> direct drive extruders welcomed.
>>
>> Thanks all.
>>
>> Cheers, Gene Heskett, CET.
Cheers, Gene Heskett, CET.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
GH
gene heskett
Tue, Apr 9, 2024 3:43 PM
On 4/9/24 08:12, nop head wrote:
I have known Filaflex to fall to bits after a while. I switched the
Ninja for TPU and have not had any problems with that.
The roll I have has no label, The only roll of a bright blue I have.
Very glossy stuff on the spool, would need 3 days in a dryer before any
future use. Makes this part: handle_bunper.png, fits 3/4" oak dowel for
vise handle.
On Tue, 9 Apr 2024 at 12:39, jon jonbondy.com http://jonbondy.com via
Discuss <discuss@lists.openscad.org mailto:discuss@lists.openscad.org>
wrote:
Stringing can be a problem, but I know that properly set up printers
can
minimize this almost to the point of eliminating it. My Prusa MK3 was
perfect. The MK4 is OK, as is the XL, but there can be annoying
surprises. A small torch/flame can be helpful in melting the stringing
away.
Jon
On 4/9/2024 7:22 AM, gene heskett wrote:
On 4/9/24 06:54, Jon Bondy wrote:
I have used TPU for years, and have not experienced this hardening.
Has anyone else??
Jon
On 4/8/2024 11:33 PM, gene heskett via Discuss wrote:
On 4/8/24 21:46, Todd Allen via Discuss wrote:
I expect TPU, perhaps 95A or a bit softer, ought to be a good
choice for this.
I would question the long term softness of TPU. I figured it would
be ideal to serve as a bumper between the knob on the end of a
handle and the hole in the vise screw it ran thru. Nice, when
freshly printed, had the desired effect but a year later it is
considerably harder stuff.
This does not bode well for something I fully expect to last a
century or more with bare hands on it. What I bought and still
half a roll of, was rated Shore 95. Does anyone have any
a more stable with time product?
The other, less than ideal result was the excess stringing that took
considerable effort to clean up. Magic recipes to control that with
direct drive extruders welcomed.
Thanks all.
Cheers, Gene Heskett, CET.
_______________________________________________
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
<mailto:discuss-leave@lists.openscad.org>
Cheers, Gene Heskett, CET.
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
On 4/9/24 08:12, nop head wrote:
> I have known Filaflex to fall to bits after a while. I switched the
> Ninja for TPU and have not had any problems with that.
>
The roll I have has no label, The only roll of a bright blue I have.
Very glossy stuff on the spool, would need 3 days in a dryer before any
future use. Makes this part: handle_bunper.png, fits 3/4" oak dowel for
vise handle.
> On Tue, 9 Apr 2024 at 12:39, jon jonbondy.com <http://jonbondy.com> via
> Discuss <discuss@lists.openscad.org <mailto:discuss@lists.openscad.org>>
> wrote:
>
> Stringing can be a problem, but I know that properly set up printers
> can
> minimize this almost to the point of eliminating it. My Prusa MK3 was
> perfect. The MK4 is OK, as is the XL, but there can be annoying
> surprises. A small torch/flame can be helpful in melting the stringing
> away.
>
> Jon
>
> On 4/9/2024 7:22 AM, gene heskett wrote:
> > On 4/9/24 06:54, Jon Bondy wrote:
> >> I have used TPU for years, and have not experienced this hardening.
> >> Has anyone else??
> >>
> >> Jon
> >>
> >> On 4/8/2024 11:33 PM, gene heskett via Discuss wrote:
> >>> On 4/8/24 21:46, Todd Allen via Discuss wrote:
> >>>> I expect TPU, perhaps 95A or a bit softer, ought to be a good
> >>>> choice for this.
> >>>>
> >>> I would question the long term softness of TPU. I figured it would
> >>> be ideal to serve as a bumper between the knob on the end of a
> vise
> >>> handle and the hole in the vise screw it ran thru. Nice, when
> >>> freshly printed, had the desired effect but a year later it is
> >>> considerably harder stuff.
> >>>
> >>> This does not bode well for something I fully expect to last a
> >>> century or more with bare hands on it. What I bought and still
> have
> >>> half a roll of, was rated Shore 95. Does anyone have any
> advice for
> >>> a more stable with time product?
> >
> > The other, less than ideal result was the excess stringing that took
> > considerable effort to clean up. Magic recipes to control that with
> > direct drive extruders welcomed.
> >
> > Thanks all.
> >
> > Cheers, Gene Heskett, CET.
> _______________________________________________
> OpenSCAD mailing list
> To unsubscribe send an email to discuss-leave@lists.openscad.org
> <mailto:discuss-leave@lists.openscad.org>
>
Cheers, Gene Heskett, CET.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
JD
John David
Tue, Apr 9, 2024 7:19 PM
If you use a print-head that can do nylon, it should be able to do at least
260C. I have a friend, and I think his print-head was designed to max out
at 300C. Here is a video on a Ender3 running a 300C max print head <
https://www.youtube.com/watch?v=qXUtxt61Ae0>
Hope that helps.
On Tue, Apr 9, 2024 at 11:43 AM gene heskett via Discuss <
discuss@lists.openscad.org> wrote:
On 4/9/24 08:12, nop head wrote:
I have known Filaflex to fall to bits after a while. I switched the
Ninja for TPU and have not had any problems with that.
The roll I have has no label, The only roll of a bright blue I have.
Very glossy stuff on the spool, would need 3 days in a dryer before any
future use. Makes this part: handle_bunper.png, fits 3/4" oak dowel for
vise handle.
wrote:
Stringing can be a problem, but I know that properly set up printers
can
minimize this almost to the point of eliminating it. My Prusa MK3 was
perfect. The MK4 is OK, as is the XL, but there can be annoying
surprises. A small torch/flame can be helpful in melting the
away.
Jon
On 4/9/2024 7:22 AM, gene heskett wrote:
On 4/9/24 06:54, Jon Bondy wrote:
I have used TPU for years, and have not experienced this
Has anyone else??
Jon
On 4/8/2024 11:33 PM, gene heskett via Discuss wrote:
On 4/8/24 21:46, Todd Allen via Discuss wrote:
I expect TPU, perhaps 95A or a bit softer, ought to be a good
choice for this.
I would question the long term softness of TPU. I figured it
be ideal to serve as a bumper between the knob on the end of a
handle and the hole in the vise screw it ran thru. Nice, when
freshly printed, had the desired effect but a year later it is
considerably harder stuff.
This does not bode well for something I fully expect to last a
century or more with bare hands on it. What I bought and still
half a roll of, was rated Shore 95. Does anyone have any
a more stable with time product?
The other, less than ideal result was the excess stringing that
considerable effort to clean up. Magic recipes to control that
direct drive extruders welcomed.
Thanks all.
Cheers, Gene Heskett, CET.
_______________________________________________
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
<mailto:discuss-leave@lists.openscad.org>
Cheers, Gene Heskett, CET.
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
If you use a print-head that can do nylon, it should be able to do at least
260C. I have a friend, and I think his print-head was designed to max out
at 300C. Here is a video on a Ender3 running a 300C max print head <
https://www.youtube.com/watch?v=qXUtxt61Ae0>
Hope that helps.
On Tue, Apr 9, 2024 at 11:43 AM gene heskett via Discuss <
discuss@lists.openscad.org> wrote:
> On 4/9/24 08:12, nop head wrote:
> > I have known Filaflex to fall to bits after a while. I switched the
> > Ninja for TPU and have not had any problems with that.
> >
> The roll I have has no label, The only roll of a bright blue I have.
> Very glossy stuff on the spool, would need 3 days in a dryer before any
> future use. Makes this part: handle_bunper.png, fits 3/4" oak dowel for
> vise handle.
>
> > On Tue, 9 Apr 2024 at 12:39, jon jonbondy.com <http://jonbondy.com> via
> > Discuss <discuss@lists.openscad.org <mailto:discuss@lists.openscad.org>>
>
> > wrote:
> >
> > Stringing can be a problem, but I know that properly set up printers
> > can
> > minimize this almost to the point of eliminating it. My Prusa MK3 was
> > perfect. The MK4 is OK, as is the XL, but there can be annoying
> > surprises. A small torch/flame can be helpful in melting the
> stringing
> > away.
> >
> > Jon
> >
> > On 4/9/2024 7:22 AM, gene heskett wrote:
> > > On 4/9/24 06:54, Jon Bondy wrote:
> > >> I have used TPU for years, and have not experienced this
> hardening.
> > >> Has anyone else??
> > >>
> > >> Jon
> > >>
> > >> On 4/8/2024 11:33 PM, gene heskett via Discuss wrote:
> > >>> On 4/8/24 21:46, Todd Allen via Discuss wrote:
> > >>>> I expect TPU, perhaps 95A or a bit softer, ought to be a good
> > >>>> choice for this.
> > >>>>
> > >>> I would question the long term softness of TPU. I figured it
> would
> > >>> be ideal to serve as a bumper between the knob on the end of a
> > vise
> > >>> handle and the hole in the vise screw it ran thru. Nice, when
> > >>> freshly printed, had the desired effect but a year later it is
> > >>> considerably harder stuff.
> > >>>
> > >>> This does not bode well for something I fully expect to last a
> > >>> century or more with bare hands on it. What I bought and still
> > have
> > >>> half a roll of, was rated Shore 95. Does anyone have any
> > advice for
> > >>> a more stable with time product?
> > >
> > > The other, less than ideal result was the excess stringing that
> took
> > > considerable effort to clean up. Magic recipes to control that
> with
> > > direct drive extruders welcomed.
> > >
> > > Thanks all.
> > >
> > > Cheers, Gene Heskett, CET.
> > _______________________________________________
> > OpenSCAD mailing list
> > To unsubscribe send an email to discuss-leave@lists.openscad.org
> > <mailto:discuss-leave@lists.openscad.org>
> >
>
> Cheers, Gene Heskett, CET.
> --
> "There are four boxes to be used in defense of liberty:
> soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author, 1940)
> If we desire respect for the law, we must first make the law respectable.
> - Louis D. Brandeis
> _______________________________________________
> OpenSCAD mailing list
> To unsubscribe send an email to discuss-leave@lists.openscad.org
>
TA
Todd Allen
Tue, Apr 9, 2024 9:36 PM
Nice, when freshly printed, had the desired effect but a year later it is
considerably harder stuff.
I suggest trying more brands or varieties. I see variability in all
filament materials even basic PLA but TPU seems to have a wider range of
formulations than most filament materials. I have TPU filaments with
identical shore hardness ratings with widely differing feel with respect to
hardness, flexibility and elasticity. I've only had a single spool of it
though where I have noticed printed objects stiffen over time. Despite the
variability of feel of my TPUs I have been consistently satisfied with
their ruggedness and I expect that will help a lot with an item
intended for wear by a large dog.
On Mon, Apr 8, 2024 at 10:33 PM gene heskett via Discuss <
discuss@lists.openscad.org> wrote:
On 4/8/24 21:46, Todd Allen via Discuss wrote:
I expect TPU, perhaps 95A or a bit softer, ought to be a good choice for
this.
I would question the long term softness of TPU. I figured it would be
ideal to serve as a bumper between the knob on the end of a vise handle
and the hole in the vise screw it ran thru. Nice, when freshly printed,
had the desired effect but a year later it is considerably harder stuff.
This does not bode well for something I fully expect to last a century
or more with bare hands on it. What I bought and still have half a roll
of, was rated Shore 95. Does anyone have any advice for a more stable
with time product?
Thanks all.
Cheers, Gene Heskett, CET.
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
>Nice, when freshly printed, had the desired effect but a year later it is
considerably harder stuff.
I suggest trying more brands or varieties. I see variability in all
filament materials even basic PLA but TPU seems to have a wider range of
formulations than most filament materials. I have TPU filaments with
identical shore hardness ratings with widely differing feel with respect to
hardness, flexibility and elasticity. I've only had a single spool of it
though where I have noticed printed objects stiffen over time. Despite the
variability of feel of my TPUs I have been consistently satisfied with
their ruggedness and I expect that will help a lot with an item
intended for wear by a large dog.
On Mon, Apr 8, 2024 at 10:33 PM gene heskett via Discuss <
discuss@lists.openscad.org> wrote:
> On 4/8/24 21:46, Todd Allen via Discuss wrote:
> > I expect TPU, perhaps 95A or a bit softer, ought to be a good choice for
> > this.
> >
> I would question the long term softness of TPU. I figured it would be
> ideal to serve as a bumper between the knob on the end of a vise handle
> and the hole in the vise screw it ran thru. Nice, when freshly printed,
> had the desired effect but a year later it is considerably harder stuff.
>
> This does not bode well for something I fully expect to last a century
> or more with bare hands on it. What I bought and still have half a roll
> of, was rated Shore 95. Does anyone have any advice for a more stable
> with time product?
>
> Thanks all.
>
> Cheers, Gene Heskett, CET.
> --
> "There are four boxes to be used in defense of liberty:
> soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author, 1940)
> If we desire respect for the law, we must first make the law respectable.
> - Louis D. Brandeis
> _______________________________________________
> OpenSCAD mailing list
> To unsubscribe send an email to discuss-leave@lists.openscad.org
>
TA
Todd Allen
Tue, Apr 9, 2024 10:04 PM
The other, less than ideal result was the excess stringing that took
considerable effort to clean up. Magic recipes to control that with
direct drive extruders welcomed.
Direct drive tends to be much better than bowden tube printheads for TPU.
No anti stringing magic, but some combination of slowing down, reducing
layer height and line width, lowering extrusion temp, tweaking of
retraction distance, speed, wipe and hop ought to fix it. Sometimes
redesigning an object or changing its orientation for printing can help.
Also try more brands of filament as each have different trade offs. In
general I find TPU to be an easy forgiving print material at least when
projects are small enough to not need high flow rates. Some TPUs,
especially the more soft and elastic ones, print very poorly at
typical print speeds and slowing way down can help a lot.
On Tue, Apr 9, 2024 at 6:23 AM gene heskett via Discuss <
discuss@lists.openscad.org> wrote:
On 4/9/24 06:54, Jon Bondy wrote:
I have used TPU for years, and have not experienced this hardening. Has
anyone else??
Jon
On 4/8/2024 11:33 PM, gene heskett via Discuss wrote:
On 4/8/24 21:46, Todd Allen via Discuss wrote:
I expect TPU, perhaps 95A or a bit softer, ought to be a good choice
for this.
I would question the long term softness of TPU. I figured it would be
ideal to serve as a bumper between the knob on the end of a vise
handle and the hole in the vise screw it ran thru. Nice, when freshly
printed, had the desired effect but a year later it is considerably
harder stuff.
This does not bode well for something I fully expect to last a century
or more with bare hands on it. What I bought and still have half a
roll of, was rated Shore 95. Does anyone have any advice for a more
stable with time product?
The other, less than ideal result was the excess stringing that took
considerable effort to clean up. Magic recipes to control that with
direct drive extruders welcomed.
Thanks all.
Cheers, Gene Heskett, CET.
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
> The other, less than ideal result was the excess stringing that took
considerable effort to clean up. Magic recipes to control that with
direct drive extruders welcomed.
Direct drive tends to be much better than bowden tube printheads for TPU.
No anti stringing magic, but some combination of slowing down, reducing
layer height and line width, lowering extrusion temp, tweaking of
retraction distance, speed, wipe and hop ought to fix it. Sometimes
redesigning an object or changing its orientation for printing can help.
Also try more brands of filament as each have different trade offs. In
general I find TPU to be an easy forgiving print material at least when
projects are small enough to not need high flow rates. Some TPUs,
especially the more soft and elastic ones, print very poorly at
typical print speeds and slowing way down can help a lot.
On Tue, Apr 9, 2024 at 6:23 AM gene heskett via Discuss <
discuss@lists.openscad.org> wrote:
> On 4/9/24 06:54, Jon Bondy wrote:
> > I have used TPU for years, and have not experienced this hardening. Has
> > anyone else??
> >
> > Jon
> >
> > On 4/8/2024 11:33 PM, gene heskett via Discuss wrote:
> >> On 4/8/24 21:46, Todd Allen via Discuss wrote:
> >>> I expect TPU, perhaps 95A or a bit softer, ought to be a good choice
> >>> for this.
> >>>
> >> I would question the long term softness of TPU. I figured it would be
> >> ideal to serve as a bumper between the knob on the end of a vise
> >> handle and the hole in the vise screw it ran thru. Nice, when freshly
> >> printed, had the desired effect but a year later it is considerably
> >> harder stuff.
> >>
> >> This does not bode well for something I fully expect to last a century
> >> or more with bare hands on it. What I bought and still have half a
> >> roll of, was rated Shore 95. Does anyone have any advice for a more
> >> stable with time product?
>
> The other, less than ideal result was the excess stringing that took
> considerable effort to clean up. Magic recipes to control that with
> direct drive extruders welcomed.
>
> Thanks all.
>
> Cheers, Gene Heskett, CET.
> --
> "There are four boxes to be used in defense of liberty:
> soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author, 1940)
> If we desire respect for the law, we must first make the law respectable.
> - Louis D. Brandeis
> _______________________________________________
> OpenSCAD mailing list
> To unsubscribe send an email to discuss-leave@lists.openscad.org
>
