Spoilboard surfacing - strange problem/result

[Nealieboyee]

I'd guess it's as a result of the fog/steam in your workshop.

No but definitely the glare from the floodlight. Apologies, it was the best I could do at the time.

[magicniner]

Carbide endmill on plastic screams problems unless you have a particularly sharp edge, try a high speed steel cutter with a very sharp edge.

[Nealieboyee]

Carbide endmill on plastic screams problems unless you have a particularly sharp edge, try a high speed steel cutter with a very sharp edge.

Ahh so that's why it was pushing the plastic instead of cutting. Very thin cut too so that wouldn't help.
I don't have any hss bits yet but I'll put a wooden board in top of the plastic and surface that with the carbide bit and see the results. Just trying to check everything is square and true.

Thanks very much

[Lee Roberts]

Could give a single flute cutter a try as well, plastic melts when it gets hot, the less chip re-cutting the better, although that counts when your cutting deeper into the material i.e pockets and stuff like that it could help here to,.

Keep an eye on your chip loads as well, when they get to low you start to see rubbing rather than cutting.

[Voicecoil]

Hi Neal - have you managed to skim this spoilboard before with better results?