1. for hot-swap pcb, the accompanying top plate (aluminum or brass) will have screw holes to secure it to pcb. for soldered pcb, the top plate doesn't have these screw holes.
2. to secure top plate and hot-swap pcb, i chose to use a m2*8 hex socket screw, a 3mm m2 standoff, and a m2 nut, as 'support poles'. the arrangement (top to bottom) is screw > plate > m2 standoff > pcb > nut. it's a good idea to put 3mm foam between the top plate and pcb also (it helps reduce pings significantly)
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note: do not over-tighen these screws, because it might cause malfunctions of z-rows. also, 3mm m2 standoff allows switches to sit flush properly on pcb.
3. for reference, here are the stock screw sizes of those used in kbd67: m2*4 (to secure top plate to bottom case), and m2*10 (to secure top frame to bottom case). the stock screw type is hex socket type (aka. those that are driven with allen key). the allen key size for these stock screws are L1.5.
the rest is the usual, e.g. switch lubing, stabilizer fine-tuning, and putting a thin foam (used in packaging) between the pcb and bottom case.
This post has been edited by horns: May 25 2019, 06:19 PM
May 25 2019, 03:19 PM
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