holding mdf down to bed

[motoxy]

Double sided carpet tape.

[Jonathan]

Double sided carpet tape.

Double sided tape is good for small parts, particularly PCBs, so long as taking it off doesn't damage the MDF.

[JAZZCNC]

Kell (Mark) wants to cut lots (hundreds) of small parts nested on say 1/4 sheet of MDF so carpet tape will workout very expensive and messy, plus it will potentially pull the paper face off.?
Suggested spray mount but same goes with messy and lots of cleanup time.!!
Vacuum wont work.!!
Tabs will leave lots of clean up and reduce qty per sheet so prefered to avoid.!!
Laser would be best but too expensive to build for material thickness's required.!!
Water jets no good for obvious reason's and even more expensive than Laser.!!

So my suggetsion because it's flat panel sheet work, was to build a sprung loaded domed pressure ring, (say from nylon or some other slippy material) that mounts to bottom Z axis or spindle clamp and surrounds the cutter. This would hold both the surrounding material and cut part just enough so it doesn't lift or move until cutter retracts.!
This ring could also be made part of a dust extraction setup.?
It would easily be removed for larger jobs or jobs that arn't flat panel work.?

So thats the problem to over come so any other suggestions.?

So