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Cutting test tubes
Posted: Sat Feb 19, 2011 7:04 am
by Junkie
Does anyone have any good methods for cutting test tubes ? I want to attempt to cast epoxy-graphite pistons in the test
tubes, but how can I cut the glass tube down to a usable size ?
Re: Cutting test tubes
Posted: Sat Feb 19, 2011 8:47 am
by vile_fly
This should be helpful.
http://www.machinistblog.com/cutting-gl ... ini-lathe/
other techniques are discussed, too.
Re: Cutting test tubes
Posted: Sat Feb 19, 2011 2:41 pm
by Longboy
Thats the way I do it on the lathe but use a hand held diamond file to cut thru.
Re: Cutting test tubes
Posted: Sun Jan 15, 2012 2:47 pm
by Bidwell
Ni-chrome wire wrapped around the tube once with voltage applied, turns red, heats it to breaking. Use a clothes pin to hold the wire tight, insulator where they might touch.
Re: Cutting test tubes
Posted: Mon Jan 16, 2012 3:02 am
by Ian S C
Look down the page a bit to Stirling 'first run' by Chriske, there is a photo of a test tube being cut with a Dremmel tool. Ian S C