Hello and I need some rubber tips

[Greg Carmack]

Well, I need some tips on cutting rubber. EPDM 1/8in thick. We have a 60 watt Jamieson. We've cut rubber once before but had to utilize 3 passes and the edges were kind of hard and crumbly. Any tips on speed, power and passes?

Thanks

[walter hofmann]

hi there
you need a very low power setting and lower the speed acordingly. one major part is to put the rubber or any material a bit higher that the cut wou;ld be free under because if it is not free below the cut the heat generated by the cut will reflect back to the rubber and make the cut brittle.
greetings
walt

[Greg Carmack]

Thanks, me and my students will try these changes.

[Mike Null]

My limited experience with rubber is that it stinks, it's dirty and it doesn't cut well. It can be engraved.

Be sure to use a cutting grid.