I just finished assembling my CrossFire Pro today and am on step A7. - Tighten the X-axis and Y-axis Lead Nuts. Jogging the machine to the most positive X position works perfect. However, when I try to move it to the most negative Y position, only the right Y-axis moves. The left Y-axis binds up. I can manually turn the lead screw by using an allen key on the socket head cap screw. I’m not sure if the bearing carriages are too tight, or there is something off with the lead screw or something with how I tightened the motor couplers. Here is a video where I’m trying to show how the right Y-axis moves but the left Y-axis doesn’t: https://photos.app.goo.gl/zZSj8K3ftq7Af4yq9
I appreciate any tips yall have. I did read a post or two about Y-axis problems but didn’t really understand them / wasn’t able to find a resolution.
It looks like in the picture that the bracket holding the lead screw may be the wrong one. The lead screw looks in a bind at the front bracket. It may be the picture.
The next question is, is the coupler slipping? Mark the lead screw with a line with a marker and see if it is moving.
One more thing. Take a allen wrench and loosen the lead screw support brackets to see if they are 90 degrees withe lead screw.
Do the motor end too. Just loosen them if they are binding they will snap into place.