[Noisebridge-discuss] Who wants Kilograms of Shapelock?

[Lee Sonko]

>You might try delrin...
 
Ah, that's the rub. I'm not using CNC to cut the gears. I want to use the
simplest tools possible. If I had the class use CNC, it would become a class
in CNC operation. This is a class in the theories of mechanics and kinetics;
how to get "stuff" to move in interesting ways. So I need some universally
easy material to work in. That's why we're using foam core right now. I want
them to be able to fashion their own gears, cams etc with their own hands
persay so they can get a hands-on feel for what they're building. I could
buy lots of parts but that would avoid much of the basic hands-on-edness
that I'm trying to impress on them.
 
I envision them squishing shapelock in their hands, pressing it into gear
molds, stretching it into shape by hand.
 
I want to use Phun (the 2d physics simulator) but for real.
 
 
 
  _____  

From: Corey McGuire [mailto:coreyfro at coreyfro.com] 
Sent: Friday, March 12, 2010 1:12 PM
To: Lee Sonko
Cc: NoiseBridge Discuss; Orb Swarm
Subject: Re: [Noisebridge-discuss] Who wants Kilograms of Shapelock?



You might try delrin.  It's great for gears because it is hard and REALLY
low friction.  Are you using CNC to cut the gears?  Inkscape has an AWESOME
built in gear tool.  I used it on the Techshop laser engraver to GREAT
effect (acrylic.)


On Fri, Mar 12, 2010 at 1:08 PM, Lee Sonko <lee at lee.org> wrote:


I'm in for $10 at up for $15/kg
 
I'm trying to find a better material to use for the Mechanical Sculpture
classes I teach at the Crucible. Right now we generally cut gears, cams and
levers out of foam core. It's easy, safe and inexpensive. But it's foam core
and... well it kinda sucks. If I taught mechanics in metal, we'd spend all
our time learning how to use the tools to work the metal; the same goes with
wood :-(. Maybe Shapelock will fit the bill: easy to work and re-work with
inexpensive tools, safe, inexpensive, fairly sturdy when cool.
 
Lee
 
 
  _____  

From: noisebridge-discuss-bounces at lists.noisebridge.net
[mailto:noisebridge-discuss-bounces at lists.noisebridge.net] On Behalf Of
Corey McGuire
Sent: Friday, March 12, 2010 11:58 AM
To: NoiseBridge Discuss; hackerdojo at googlegroups.com; Orb Swarm; Chris
Tacklind
Subject: [Noisebridge-discuss] Who wants Kilograms of Shapelock?



Instead of buying the name brand material for $1.50 an oz, I am looking for
a source of CAPA 6800 at $10 a kg or about $0.30 an oz.  I might need to get
this in a 20kg volume (that's right, I'm measuring volume in grams!)  That
means a $200 purchase.  maybe more with shipping and distributor specific
pricing, but I have it on authority that $10 a KG is not unreasonable. 

Anyone who knows of a source, please help me out.  Right now I am looking to
work with Tri-ISO.


Who is interested?  Do I have $200 of interest in Shapelock?  Or, how many
KG would you like at $10 a KG?  The more interest, the more likely the
chance of success.

Ripped from http://en.wikipedia.org/wiki/Polycaprolactone :

PCL also has many applications in the hobbyist market. Some brand names used
in selling it to this market are Shapelock and Friendly Plastic in the US,
and Polymorph in the UK. It has  <http://wiki/Physical_property> physical
properties of a very tough, nylon-like plastic that melts to a putty-like
consistency at only 60°C. PCL's specific heat and conductivity are low
enough that it isn't hard to handle at this temperature.This makes it ideal
for small-scale modeling, part fabrication, repair of plastic objects, and
<http://wiki/Rapid_prototyping> rapid prototyping where heat resistance
isn't needed. Though molten PCL readily sticks to many other plastics, if
the surface is cooled, the stickiness can be minimized while still leaving
the mass pliable.


-- 
Success is a tasty spirit distilled from bitter failure
--Coreyfro





-- 
Success is a tasty spirit distilled from bitter failure
--Coreyfro


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.noisebridge.net/pipermail/noisebridge-discuss/attachments/20100312/3a28d675/attachment-0003.html>