# 30NOV2024

tines - 11 pounds to travel 9 inches
effective lever arm approx 15 inches
let's just say a tine worst case is 20 pounds

![[Pasted image 20241130114206.png]]

Yeah, I think 5/8 rod is the right call

pressure on .12" plate = 20 lb / ((.625) x (.125)) = 256 psi

But snap in bushings would be better
https://www.menards.com/main/hardware/fasteners-connectors/specialty-fasteners/bushings/midwest-fastener-reg-5-8-id-regular-3-4-od-hole-snap-bushing-15-count/66402/p-1444439917699-c-9547.htm
https://www.menards.com/main/electrical/conduit-conduit-fittings-raceways/conduit-fittings-supports/sigma-proconnex-trade-snap-in-bushing/49392/p-1444430928210-c-9538.htm?exp=false


current design
- 1.5 to 7.5" gap in 1" increments
- outer tines are spaced 13.9" when fully spread, 7.9" when fully brought in
- any guides for formed parts w.r.t. bend radii, etc.?