Adhesive pcb stand offs

1

The piicoDev rfid module has 2.5mm mounting holes and I need to mount the module on a wooden board.

Is there an adhesive pcb stand off available or, if not, is there a nylon stand off available which would screw into the board, and to which the pcb could be screwed?

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2

You may need to design and 3D print one.

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3

Hi Toni,

From scouring our many suppliers for novel standoffs, I unfortunately havent come across one that would suit.

For a clean solution, adding nylon hardware to a PiicoDev mount - you could superglue standoffs in position.
Then screw the whole platform down with wood screws.

Another solution could be to drill a hole, and press fit the nylon hardware - either the bolt or a standoff (the hole may need to be expanded incrementally)

PS: Murray used similar stategies on the Borg Cube

Keen to see what solution you land on!
Liam

4

Thanks Liam,
I think I will experiment with your good suggestion of drilling a hole and then screwing (and perhaps gluing) a nylon standoff into the holes. Fortunately I still have a half full box of the nylon bits.

The holes cannot be deeper than 5mm to suit the timber depth so the project is now held up pending the delivery of a suitable collar device to control depth of the drilling.

Cheers
Toni

5

Hi Toni
A strip of PVC tape wrapped around the drill bit or heat shrink tubing to act as a depth indicator works pretty well. It works as an indicator but if you want something to actually STOP the bit drilling too far you will have to just wait for your collar. They work pretty well as long as they donā€™t come loose on the drill. The drill material is pretty hard so the locking screw does not get much of a bite on it to stay secured so coming loose is always a bit of a problem with this type of device.

Just have to be a bit careful.
Cheers Bob

Note. Amazon have several pages of these devices here

I note that most have an allen key locking screw while a few actually clamp around the drill bit which would probably be the best way to go. These seem to be imperial sizes though although I did not have an extensive look. But for the number if times I have to do this I find the PVC tape method OK.

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Thanks Robert. Yes Iā€™ve tried that approach but 50% of the time I end up drilling too deep and tearing the tape. The one Iā€˜ve ordered is the three piece one that clamps it in place. Weā€™ll see how it goes.
Toni

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Hi Toni

Agreed you must be VERY careful. A lot depends on the material to be drilled. some of the timber specific drill bits and sharp twist drill bids have a habit of ā€œgetting away on youā€ and quickly going right through if you lose concentration for about half a second. Easier to control if you are using a bench or floor stand drilling press. With hand held drilling this can be quite difficult.

I have a set of speed bores which have a sort of tapered threaded bit in the centre which seems to ā€œpullā€ the bore into the hole. Boy are these fast. Really have to be careful or you can wreck the job by breaking away the surface when the bore breaks through the other side.
Cheers Bob