Jeremy,
The temps at the hotend will be between 190 – 235 Centigrade.
Ryan
From: hackpgh-discuss-bounce@xxxxxxxxxxxxx
[mailto:hackpgh-discuss-bounce@xxxxxxxxxxxxx] On Behalf Of Jeremy Tiogar
Sent: Monday, November 28, 2016 8:28 PM
To: hackpgh-discuss@xxxxxxxxxxxxx
Subject: [hackpgh-discuss] Re: Question regarding stock material for the laser
cutter...
If I remember correctly, the cloth can be etched, but not cut, as long as it
hasn't been hit with resin or bondo yet. Do not cut polyester based resins with
lasers.
Carbon fiber cloth can be cut, again pre resin.
If they are laser cutting the cloth, they might be doing it with a fiber laser
rather than our type. Those allow for direct metal cutting as well. It still
might be do able on ours, but everything I'm seeing is saying etch only.
(Though if you etch it enough..isn't that a cut?)
Looking at the picture, it looks a bit different from Glass cloth. Glass cloth
would work, I've used it for shields while welding. But it almost looks like
scorching around the edge. It could be something else like k wool. It's a
ceramic cloth used in ovens and refractory furnaces.
What kind of Temps does it need to insulate from?
Jeremy
On Nov 28, 2016 7:44 PM, "Robert Berger" <bob@xxxxxxxxxxxx
<mailto:bob@xxxxxxxxxxxx> > wrote:
Ryan,
I have a bunch of fiberglass cloth I bought for K-9, I'll try cutting it this
evening.
- Bob
On Nov 28, 2016, at 6:26 PM, Ryan J. Priore <ryan.priore@xxxxxxxxx
<mailto:ryan.priore@xxxxxxxxx> > wrote:
All,
I want to laser cut what is essentially fiberglass cloth (Bondo;
http://www.acehardware.com/product/index.jsp?productId=1383203).
I am trying to make a thermal insulator for a Diamond Hotend for a 3D printer
(http://reprap.org/wiki/Diamond_Hotend). The one that I got is an Ebay special
recommended by JetGuy. It does not come with this thermal barrier as shown from
the real version from Reprap.me <http://Reprap.me>
(http://www.reprap.me/diamond-hotend.html). After reading the reprap wiki, it
states that the thermal barrier is created by laser cutting a fire blanket
which looks to be fiberglass. I have the dxf file from the diamond reprap wiki.
Not sure if we have crossed this bridge before so I wanted to start a
discussion before proceeding. Thoughts?
Ryan
