PT Armboard marking jig

[tim_bissell]

Here is a bit of recycling in Austerity Britain! A surplus subchassis, a bearing with a cracked jewel and a few wood scraps - I can bolt a blank arm board in place, mark the spindle to pivot length off on the ruler, put a bit of masking tape in place and mark an arc of suitable hole centres.

I have used it for checking existing arm boards and making new ones.

cheers,

Tim

P.S. Please don't ask what the <-18mm is about; I can't remember! Might be to do with the location of the spindle hole in relation to the end of the wood.

[Zebbo]

Is there no end to this man's talent?!

[abril]

And here's my 215.4 marking setup on a spare subchassis

has worked perfectly for me
including on an unknown geometry armboard (natty)

[natty_dredd]

P.S. Please don't ask what the <-18mm is about; I can't remember! Might be to do with the location of the spindle hole in relation to the end of the wood.

Looks like it is just saying that the edge of the board is the 180mm point but you wrote 18mm by mistake.