Alternative to tabs for work holding? Double-sided tap? 0.5mm thick, long tabs?

[mattnedgus]

Hi,

Does anybody have any alternative part-holding suggestions to using tabs please? (cutting a part from a whole sheet that's screwed down). I can't use screws, clamps, nails (the part comes off 'finished') or a vacuum bed (I think the parts are too thin)...

I've been finding that when I come to cut the tabs off with a flush-trim hand-router, where the hand-router has cut, it ends up a different shade when the light bounces off it because it's cut at a different feed/speed to the rest of it which was CNC machined... I'd like to be able to not need to sand and blend in this part and leave the parts finished with a machine-cut surface.

Unfortunately the parts I've been cutting can't be screwed down or have clamps on them.

I've been using 20mm long, 4mm deep 3D tabs with good work holding success and was wondering whether I could maybe use say 100mm+ long, 0.5mm deep non-3D tabs perhaps? Maybe I could then run around with a knife and then the trim router set to a fraction of a mm.

Does anyone have any experience with this?

I was even wondering if anyone might use some kind of double-sided tape?

Thanks in advance, Matthew