Hi,

Any good quality HSS metal drill bit will drill into carbon.  As with most materials, small pilot hole first then increase the size.  Carbon will blunt drill bits fairly quickly.

In terms of cutting the sheet, either of those tools will work fine.  Dremel based tools will be quicker and neater initially but both will still need the edges finishing off.

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

Thank you Warren for your quick reply.

Hi Paul,

Warren is on holiday this week so I'm looking over the forum posts.

In answer to your question regarding which sheet to use for your motor plate I would say that you would definately need the prepreg carbon fibre sheet, not the wet-lay carbon fibre sheet. The prepreg sheet is much stronger; it's made from 100% carbon fibre/epoxy resin (many layers, cured at high temeprature and pressure). The result is a stronger, lighter sheet.

From what you've described, this would definately be the right choice.

I hope this helps,

Matt

Matt Statham
Easy Composites / Carbon Mods - Technical Sales