[OpenSCAD] 3D Printer

Rick graham.rick at gmail.com
Wed Apr 25 05:03:06 EDT 2018


> Above 240C, teflon releases an odorless colorless neurotoxin which is
very harmful.

That's good information, thanks Jamie.

On Tue, Apr 24, 2018 at 7:20 PM, Jamie Bainbridge <
jamie.bainbridge at gmail.com> wrote:

> For nylon, the number one thing you want is an all-metal heatbreak.
>
> Many of these cheap Chinese printers have a design where the teflon
> filament tube goes down into the hot nozzle area. Above 240C, teflon
> releases an odorless colorless neurotoxin which is very harmful. You
> will need to go over 250C to print Nylon, so a printer design with the
> teflon tube up against the nozzle is not suitable.
>
> If you buy one of these cheap machines with the teflon tube hotend,
> then spend the money upgrading the hotend to a genuine E3D V6 hotend
> which has an all-metal heatbreak. Buy from a genuine reseller such as
> Filastruder (USA) or E3D themselves (UK). You will find designs for
> upgrading most printers to a V6 on Thingiverse or MyMiniFactory.
>
> Don't believe cheap printer vendor marketing and don't buy a cheap
> clone hotend. A lot of them sell these teflon-lined hotends as
> "improved design" which isn't actually an improvement at all. Where a
> cheap clone actually has a metal heatbreak, usually the machining is
> inferior which just leads to filament clogging.
>
> Jamie
>
>
>
> On 25 April 2018 at 04:22, fractorr <fractorr at gmail.com> wrote:
> > I am looking at buying a 3D printer, just looking for a small fairly
> > inexpensive 3D printer, any recommendations?  It just for prototyping
> small
> > pieces with a max size of about 4" x 4" x 1", does not need to super
> fast,
> > hoping to be able to use nylon, something in the $300 - $500 range if
> > possible.
> >
> >
> >
> >
> > --
> > Sent from: http://forum.openscad.org/
> >
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