Did I miss the resolution on the undersize holes?
Sent 95% of the plate work back to Bent Fab. Got a sheet of 3/16 HRPO to cut all new brackets for stuff.
Several reasons for this route:
1) wrong hole sizing
2) some brackets were for 2ā wide heims not 2.63
3) geometry in link calculator showed some areas that we could improve upon
4) Steve is eventually going to a rear steer housing, so I didnāt want to redo links when doing that swap. We are in-boarding the links on the rear, so that we can just put identical tabs on rear steer housing and bolt it in without changing links.
We are keeping the pedal assembly/orbital mount and master cylinder mounts, used the head mounting plates( should have just re cut these).
with any plasma operation there is some draft or angle to the cut. With proper cut speed and kerf compensation this can be minimized. The holes I cut on 90% of them a 3/4 bolt slides thru but is tight. A few needed just a quick cleaning up with a Hercules step bit from Harbor freight.
When I minimized the draft of the hole, my tight side was .753-.755 and the wide side of the 3/16 is .763-.765-ish. I didnāt check all, just checked my first test hole to confirm the hole call out in cad. It did confirm my kerf compensation is about .010ā more that what Iām achieving.
Either way, itās Less than the gap from bolt to inside heim misalignments.
When I laminated the plates I put both tight sides towards the heim.
I donāt anticipate the holes elongating due to leaving the hard plasma oxide layer in the holes, and keeping the tolerances tight, as well as the 3/8ā total width of the laminated tabs.