CW Keyer Finger Pieces

thingiverse

I drilled a small hole right through the circular piece, and bolted those two pieces onto my keyer with ease. A 4-40 bolt fit perfectly into that precisely designed hole. My homemade semi-automatic keyer is where this design originated from, with sizes remaining entirely reasonable, I must say. I haven't actually bought any pre-manufactured keyers before, so all of these specs were carefully crafted based on what I saw in online pictures and some rough estimates made by measuring the distance between my own fingers!