View Full Version : Mock Up Material


pzzamakr1980
08-19-2007, 04:55 PM
For doing prototyping where you might have to make a part a few times to get it right what do you use? I was thinking of delrin or something similar because its cheaper than aluminum and cuts easily but doesnt get deformed much. Any suggestions.

Geof
08-19-2007, 05:00 PM
.....I was thinking of delrin or something similar because its cheaper than aluminum...

Cheaper than aluminum? Who is your supplier? I could be interested in this we pay more for Delrin than similar sized aluminum bar.

Regarding your question about what to use have you tried the machinable wax? It can be re-used by collecting the chips and scrap and remelting. The strength is less than Delrin but not much.

pzzamakr1980
08-19-2007, 05:44 PM
To be honest I've never heard of it. I have never had formal training or any training other than what I teach myself so unless I come across it here I tend to miss out on some stuff. As far a supplier goes Ebay has scrapish delrin available all the time for pretty cheap. Cheaper than aluminum anyways. I was talking about flat bar not round stuff too. Thx for the wax advice Ill go look that up right now.

Geof
08-19-2007, 05:54 PM
Do a search for 'machinable wax' using the Google window in the upper right corner and you will get 139 posts mentioning it.

pzzamakr1980
08-19-2007, 06:24 PM
Thanks geof. Ive been taking a look at that stuff and it seems like the perfect solution to my dilemna. Which is what it was intended to be. I actually just ordered some. Thx for tip

MichaelHenry
08-20-2007, 11:00 AM
PVC or wood might be cheaper.

Mike

Oldmanandhistoy
08-20-2007, 06:08 PM
PVC or wood might be cheaper.

Mike

Cheaper than recyclable wax? :confused:

John

digits
08-20-2007, 06:18 PM
What makes machineable wax more machineable than standard candle wax?

Oldmanandhistoy
08-20-2007, 06:22 PM
What makes machineable wax more machineable than standard candle wax?

I believe it is the different additives they use in each type of wax but could be wrong.:)

John

Geof
08-20-2007, 06:31 PM
What makes machineable wax more machineable than standard candle wax?

More rigid. Higher melting point.

If you do the search I suggested above you will find a thread describing making your own machineable wax by dissolving polyethylene in molten paraffin wax. What you are doing is making an alloy with parffin wax and polyethylene.

digits
08-20-2007, 07:32 PM
More rigid. Higher melting point.

If you do the search I suggested above you will find a thread describing making your own machineable wax by dissolving polyethylene in molten paraffin wax. What you are doing is making an alloy with parffin wax and polyethylene.

Thanks for the explanation. :cheers: