loooooooong f6, like 10+ minutes but works finally
A 5ft heated pipe seems far less convenient and energy inefficient than an
insulated box that encloses the spool and warms it. Whether it would work
depends on how quickly the filament dries in hot air, which I don't know.
On Mon, 5 Jul 2021 at 20:05, Gene Heskett gheskett@shentel.net wrote:
On Monday 05 July 2021 14:43:32 larry wrote:
On Mon, 2021-07-05 at 16:29 +0100, Ray West wrote:
Wrt petg, it'll stick to most things when hot, in that case the hair
spray is used as a release film, and is easier to apply (if more
messy) compared to a glue stick. Just because something works for me
or you, in the case of 3d printing, does not mean the same
will work for others, there are too many variables in play.
I cringe whenever I hear someone say they use hair spray. I did speak
with one fellow who removed the glass on his bed in order to use hair
spray, but I think that's a rarity.
There's no way I want hairspray on anything that isn't my print
surface, and I don't see an easy way to avoid getting in onto
leadscrews, belts, electronics, etc.
I was once told to try a product called "Pledge Floor Care
Multisurface Finish", and I have never used anything else since.
Prints just pop right off when the bed drops to about 60C. Search for
it on Amazon. It's in the blue squeeze bottle.
I squirt some on the bed, then use a rag to wipe over the surface
(glass). 1 application will last quite a few prints, and you can just
wipe some more on, as it will dissolve the dried stuff that's already
on there. Every few months or so, I'll clean the bed thoroughly.
This is a small town, 2 stores that might have it, but I'm headed out to
find some shortly. Thanks Larry
But as you say, what works for one, may not work for others.
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
Cheers, Gene Heskett
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page http://geneslinuxbox.net:6309/gene
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On 7/5/21 2:43 PM, larry wrote:
There's no way I want hairspray on anything that isn't my print
surface, and I don't see an easy way to avoid getting in onto
leadscrews, belts, electronics, etc.
No problem with the Prusa MK3 series printers. Just take off the steel
sheet, hold it in a different direction and spray. The steel print
surface is held flat on the heated bed with strong magnets. It is
designed to be taken off so that it can be bent to get the prints off
without using tools.
Now imagine a 50+ year old bloke half bald with a 3mm haircut going to
CVS and buying just 2 cans of Aquanet hairspray. The face of the cashier
was priceless.
Regards, Jan
--
Jan Wieck
On 7/5/2021 12:53 PM, nop head wrote:
A 5ft heated pipe seems far less convenient and energy inefficient
than an insulated box that encloses the spool and warms it.
On the other hand, the heated pipe is more of a "demand dryer";
presumably you could swap from one spool of filament to another without
substantial delay. With an insulated box it seems like you'd have to
"cook" the new spool for a while, or keep the spools in some other
low-humidity storage device.
But mostly I'm listening to this conversation and wondering what part of
the world you all are in. Here in inland Los Angeles, I just keep my
filament sitting out, and I have spools of PLA that are five years old
and don't give me any trouble.
Or maybe the flaws are small enough that I just don't know better.
On Monday 05 July 2021 15:53:49 nop head wrote:
A 5ft heated pipe seems far less convenient and energy inefficient
than an insulated box that encloses the spool and warms it. Whether it
would work depends on how quickly the filament dries in hot air, which
I don't know.
At 5 or 6 feet, and the rate of fiber travel thru it, over an hour, I'd
think it should make a noticeable difference. Certainly worth the price
of the poly pipe and fittings to hook up a spare hair driver to it. not
as energy efficient as the hot box, but a couple days quicker to build.
Turn it on when the printer is turned on, and it ought to have drier
filament at the printer about the time cura has everything warmed up as
its a minimum of 6 minutes just for that since it rereads the bed level
error before every print at 25 locations on the bed, about 5 minutes
right there..
Right now its sitting on a table/hutch combo, with the computer on a 2x2
ft piece of ply on saw horses, and a tall chest of drawers about a
hundred years old is about 5 or 6 feet away. And with a box to hold the
spool getting the warm air from that end of the pipe, it ought to wind
up drying the whole spool eventually.
On Mon, 5 Jul 2021 at 20:05, Gene Heskett gheskett@shentel.net wrote:
On Monday 05 July 2021 14:43:32 larry wrote:
On Mon, 2021-07-05 at 16:29 +0100, Ray West wrote:
Wrt petg, it'll stick to most things when hot, in that case the
hair spray is used as a release film, and is easier to apply (if
more messy) compared to a glue stick. Just because something
works for me or you, in the case of 3d printing, does not mean
the same will work for others, there are too many variables in
play.
I cringe whenever I hear someone say they use hair spray. I did
speak with one fellow who removed the glass on his bed in order to
use hair spray, but I think that's a rarity.
There's no way I want hairspray on anything that isn't my print
surface, and I don't see an easy way to avoid getting in onto
leadscrews, belts, electronics, etc.
I was once told to try a product called "Pledge Floor Care
Multisurface Finish", and I have never used anything else since.
Prints just pop right off when the bed drops to about 60C. Search
for it on Amazon. It's in the blue squeeze bottle.
I squirt some on the bed, then use a rag to wipe over the surface
(glass). 1 application will last quite a few prints, and you can
just wipe some more on, as it will dissolve the dried stuff that's
already on there. Every few months or so, I'll clean the bed
thoroughly.
This is a small town, 2 stores that might have it, but I'm headed
out to find some shortly. Thanks Larry
But as you say, what works for one, may not work for others.
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
Cheers, Gene Heskett
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law
respectable. - Louis D. Brandeis
Genes Web page http://geneslinuxbox.net:6309/gene
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
Cheers, Gene Heskett
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page http://geneslinuxbox.net:6309/gene
On Mon, Jul 5, 2021, 17:15 Jordan Brown openscad@jordan.maileater.net
wrote:
But mostly I'm listening to this conversation and wondering what part of
the world you all are in. Here in inland Los Angeles, I just keep my
filament sitting out, and I have spools of PLA that are five years old and
don't give me any trouble.
Southeast Pennsylvania here. In the summer 75% rh are normal.
Regards, Jan
On 7/5/2021 2:35 PM, Jan Wieck wrote:
Southeast Pennsylvania here. In the summer 75% rh are normal.
According to Weather Underground, we're sitting at 23% at the moment.
My sinuses hate it, but my filament loves it.
On Monday 05 July 2021 16:19:11 Jan Wieck wrote:
On 7/5/21 2:43 PM, larry wrote:
There's no way I want hairspray on anything that isn't my print
surface, and I don't see an easy way to avoid getting in onto
leadscrews, belts, electronics, etc.
No problem with the Prusa MK3 series printers. Just take off the steel
sheet, hold it in a different direction and spray. The steel print
surface is held flat on the heated bed with strong magnets. It is
designed to be taken off so that it can be bent to get the prints off
without using tools.
Now imagine a 50+ year old bloke half bald with a 3mm haircut going to
CVS and buying just 2 cans of Aquanet hairspray. The face of the
cashier was priceless.
Regards, Jan
ROTFLMAO! At 86, I'm pretty thin on top too. But I make up for it, the
beard still looks a lot like the pix on the front page of my web site.
url in my sig. Unforch, the lady standing beside me that morning passed
(COPD) last Pearl Harbor Day, so I've got the paid for place to myself
now.
Cheers, Gene Heskett
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page http://geneslinuxbox.net:6309/gene
On Monday 05 July 2021 17:35:47 Jan Wieck wrote:
On Mon, Jul 5, 2021, 17:15 Jordan Brown
openscad@jordan.maileater.net
wrote:
But mostly I'm listening to this conversation and wondering what
part of the world you all are in. Here in inland Los Angeles, I
just keep my filament sitting out, and I have spools of PLA that are
five years old and don't give me any trouble.
Been to LA, even ICE plants you can't water cuz there isn't enough water
are in trouble.
Southeast Pennsylvania here. In the summer 75% rh are normal.
Regards, Jan
And I'm about 140mi south of Pitsburgh in WV, rh of 70% seems bone dry in
the summer. 87F on the front deck in the shade right now at 17:49.
Cheers, Gene Heskett
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page http://geneslinuxbox.net:6309/gene
Gene,
Your hair dryer pipe will is not likely to get moisture below the surface of the filament.
These things suck-up moisture and with enough time it is distributed evenly through the material.
Hence things like ovens or Nopheads box, with time the moisture leeches out.
Even a big plastic box with a large pack of damp-rid works, but it needs time.
If you don't have time for now, see if you can quick delivery of a fresh spool.
-----Original Message-----
From: Gene Heskett [mailto:gheskett@shentel.net]
Sent: Tue, 6 Jul 2021 05:01
To: discuss@lists.openscad.org
Subject: [OpenSCAD] Re: loooooooong f6, like 10+ minutes but works finally
However, in this thread that all have snipped, without comment, my
suggestion of feeding the filament thru a long (5 feet) plastic pipe
with heated air flow at 70-90C flowing in the pipe, placed between the
spool and the printer with a couple feet of air to cool it between the
end of the pipe and the extruder, Is that so off the wall as to be
ignored?
--
This email has been checked for viruses by AVG.
https://www.avg.com
On 05/07/2021 22:35, Gene Heskett wrote:
On Monday 05 July 2021 15:53:49 nop head wrote:
A 5ft heated pipe seems far less convenient and energy inefficient
than an insulated box that encloses the spool and warms it. Whether it
would work depends on how quickly the filament dries in hot air, which
I don't know.
At 5 or 6 feet, and the rate of fiber travel thru it, over an hour, I'd
think it should make a noticeable difference. Certainly worth the price
of the poly pipe and fittings to hook up a spare hair driver to it. not
as energy efficient as the hot box, but a couple days quicker to build.
Turn it on when the printer is turned on, and it ought to have drier
filament at the printer about the time cura has everything warmed up as
its a minimum of 6 minutes just for that since it rereads the bed level
error before every print at 25 locations on the bed, about 5 minutes
right there..
Right now its sitting on a table/hutch combo, with the computer on a 2x2
ft piece of ply on saw horses, and a tall chest of drawers about a
hundred years old is about 5 or 6 feet away. And with a box to hold the
spool getting the warm air from that end of the pipe, it ought to wind
up drying the whole spool eventually.
If you've got the hair dryer, and a length of 2 inch diameter plastic
pipe, or similar, then it would be worth a try. Probably best to try and
get the filament more or less in centre of pipe a few bent wire pig
tails could do that. The reason why a day or two is needed for drying a
spool is because of the spool sides (usually) and the number of layers
required to get through to the centre of the spool. You can possibly
hear the difference, damp filament 'pops' in the extruder, as the
moisture turns to steam, and you get a rough surface. You'll have to
unload the filament from hot end, or waste the first few feet, if not
dried. A low cost/effort alternative would be to unspool a bit more
filament than needed, and set your bed temp to 50deg, and leave the
loose filament coiled on there for an hour or two.