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Bolt mod Model M with M3 bolts??
Posted: 04 Feb 2022, 10:58
by Arto
I'm going to bolt-mod one of my model Ms, do I have to stick to M2x8mm bolts or can I use M3x8mm since it is much easier to get hold of. The hole in the metal backplate is 3mm wide at it's narrowest.
Re: Bolt mod Model M with M3 bolts??
Posted: 04 Feb 2022, 12:34
by Muirium
I hear the "screw mod" is all the rage. Looked into that as well?
Re: Bolt mod Model M with M3 bolts??
Posted: 04 Feb 2022, 15:40
by fohat
On each side of the holes in the barrel plate are the "crescents" - raised protrusions of plastic that ensure proper spacing of the layers.
A properly drilled hole allows a 2mm machine screw to go through without disturbing the plastic raised crescents on each side.
Also, using a 2mm shaft to go through a 3mm hole in the metal plate allows for a bit of "play" that a 3mm shaft does not, in case you are slightly less than perfect in drilling your holes.