Extend your short beam that¡¯s closest to the blade guard and add two sets of the linear bearings spaced 12¡± to 16¡± apart and it will be worlds more stable. The plastic UHMW bearinsg they use with 8020 are a bit sloppy. If you really want nice movement, purchase some linear rails and trucks off ebay and integrate those.
toggle quoted message
Show quoted text
On Jul 17, 2020, at 2:02 PM, Sang Luu <
sangluu@...> wrote:
Reworked the design a bit with an updated sliding mechanism -- I'll have to hope it doesn't introduce a ton of play/slop in the arm.
Anyone with experience with 80/20 linear bearings for this application??
<DustGuardAssembly.jpg>
