I've been looking around for a CNC cutter/laser to cut out certain standard shapes. We mainly use xpreg XC 110 and XC 130 (unidirectional). I came across the CNC-step machines. On their site it says they can cut prepreg with an oscillating knive, but in reality it turns out there are some issues. Does anyone know of a system or manufacturer that allows CNC cutting of prepreg materials?

Rogier

Most CNC routers should be able to cut carbon sheet in 1mm dead easily. PCB cutters work very well for this purpose and are cheap and easily sourced and replaced when they get blunt.

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

You mean something like this?

https://www.youtube.com/watch?v=oLw9Pslu1Bw

Yes, but in this case it seems to me there is no protection foil/release film on the material. That leads me to think this is not uncured prepreg. I’ve asked a manufacturer but they said cutting cured fibre panels was not a problem, but they had difficulties cutting uncured fibres.

i request to vacuum table which that is using textile cutting.
May be you can using that equipment

I mean that kind of table
https://www.damencnc.com/en/vacuum-table-vt5030-gr/a2239

I feel nobody is reading what the OP is actually asking haha.

OP, for what it's worth - I have tried an oscillating knife on a 6040 CNC router to cut uncured XC110. It was a disaster. The material tends to grab at the cutter after a few cuts, meaning it will start off cutting ok and then it will randomly grab the cutter and bunch and the cutter will proceed to ruin everything in true CNC fashion. I have no idea if this was due to the quality of the cutter, though it wasn't cheap (cost me about AU$300 for the single blade and holder). I also don't know if I could have got it to work with some effort, I gave up on the idea and decided that any pre-preg I am cutting on a 6040 bed is quick enough to cut by hand, even if it's a bit laborious.