Racking issue on xy.
Hi there. After removing my printer from my garage to fix a hot end issue. After fixing it, i decided to give the printer a quick clean and service before it goes back in the hole.
I've noticed my xy gantry has developed a racking issue. I cannot get it square again.
Regardless of belt tension, the left side (looking at it from the front) will always hit the front of the printer first before the right.
I removed the belts and adjusted it accordingly. As soon as I start tightening the belt, the gantry shifts. There is no tension behind the belt. It has about 5cm of movement. Any pressure on the gantry and it goes off square.
Any help would be appreciated.
Thanks,
Marc.
3 Replies
Just to add to this, even if I tighten the bottom belt, the gap gets bigger. If I tighten the top belt, the gap gets bigger. All on the same side.
lossen the two main bolts...(bearing stacks to bottom plate) and set you equal belt tensions with the gantry square against your FRONT Y axis belt idler mounts. Then tighten those bottom nuts again
Thank you. I managed to get it squared with that method. I was printing during the night and my gantry still seems to be square. Is it something I'll need to check every so often?