I ran into an issue where my core had a pretty bad wobble on the Y axis - it was loose when you moved the core with your hand. This caused issues with the router being off-level; I found this out during the process of tramming it.
The clamp closer to the X axis conduit was loose. I suspected that the 1mm spacer on the core clamp was worn down, so I printed a new set of core clamps and installed them. I eventually got it to not wobble - the core clamps on the Y conduit are tight, the bearings on the outside of the core clamps (the ones that are used during squaring) allow for just enough movement with my fingertips but still have some torque on the conduit. It’s nice and not-wobbly.
The problem is that there’s a vibration when the gantry moves on the Y axis. It’s visible in this video (pardon the whine from my furnace): https://photos.app.goo.gl/gyzDqjD8yyPAAYZJ6
I’ve removed and re-done the core clamps a bunch of times, starting from the nuts being just tight enough to catch the nylock to that same degree of “just enough torque but still moves”. If I loosen the clamp bolts enough to stop the vibration, it goes back to the wobble when I move it with my hand. If I tighten them, I’ll have a mix of both the wobble and the vibration.
Maybe I’m missing something in the documentation when I redid everything - the gantry rail tension bolt step ( 5-Core - V1 Engineering Documentation ) says to just seat the bolts and just put the nuts on. I don’t know if the nuts are meant to go on to a certain point, and if a rail feels tight, “loosen and tighten the two other nuts and bolts on each core clamp” - I’m not whether that means “adjust the top and bottom bolts on the opposite clamp” or “adjust the two unaffected bolts on the current clamp”.
Could I get some guidance on how to both get rid of the wobble and vibration?