Homebrew PCBs

Hi Brian,
Polymorph is a low-fusing temp thermoplastic that can be moulded by 
hand or hot air. http://www.mutr.co.uk/prodDetail.aspx?prodID=576
gives some info and ordering although I bought it at maplins in the 
UK.

To stop the wobble...
The HP stubby pen holder on the 7475A has enough structure to firmly 
hold the pen *if* pressure can be applied to the pen to hold it 
against the holder. 
I tried the traditional elastic band but this couldn't handle the 
torque and the pen wobbled.
I then tried the polymorph by using it to force and hold the pen into 
position when set...so far it has worked well.
I will put photos of what it looks like.

The stylus was created from an old stubby pen holder and a tile 
scribe/cutter with a solid tungsten carbide bit bought at wickes in 
the UK.

Hope this helps?

regards PK.


--- In Homebrew_PCBs@yahoogroups.com, "Brian Schmalz" <brian.s@l...> 
wrote:
> PK,
> 	How did you solve the stylus wobble problem? (i.e. what is 
polymorph?)
> 
> *Brian