RailCore Y-Rail Alignment Tool Y-RAT

prusaprinters

<p>Railcore Y-Rail Alignment Tool (Y-RAT). Will work with or without halo. Use these tools together with clamps while tensioning your belts to make sure your Y-rail stays parallel to your right 1515 extrusion.</p> <p>There are tabs at the bottom of the tools that go against the bottom of the right 1515 extrusion for easy alignment while tightening the clamp.</p> <p>Print 2 of the same STL. This works great when you are first building, working on the belt path, or (how I usually use them) with the air print method of belt tensioning. That method can be done with the macro below, and double checking the Y-rail is parallel to the right extrusion when you've got the belts just to the point of not vibrating. You will have to disable the motors to move the Y-rail back to make contact with the Y-RATs to confirm of course. You can get fancy and modify the macro to home X and Y at the beginning and disable motors at the end if you want so you don't have to do it manually.</p> <p>IMPORTANT: be sure your fan doesn't crash into the Y-RATs at X=270<strong>BEFORE</strong> you run this macro!</p> <p>; Air Print a box for belt adjustment.</p> <p>; First belts should be loose, almost dropping off.</p> <p>; Run the below code and the front and back belts will vibrate like a floppy guitar string.</p> <p>; Tighten a little bit and re-run this macro until the belts get to a point where they don’t vibrate.</p> <p>; At that point, you’re done.</p> <p>; Home first then drop the bed 25 mm. You should do this manually, but uncomment to do automatically.</p> <p>;G28</p> <p>;G1 Z25</p> <p>; X axis homing</p> <p>G91</p> <p>G1 Z4 F200 H2</p> <p>G1 X-300 F3000 H1</p> <p>G1 X4 F600</p> <p>G1 X-10 H1</p> <p>; Y axis homing</p> <p>G1 Y-300 F3000 H1</p> <p>G1 Y4 F600</p> <p>G1 Y-10 H1</p> <p>G1 Z-4 F200 H2</p> <p>G90</p> <p>G1 X10 Y10 F6000 ; front left corner</p> <p>G1 X10 Y290 F6000 ; back left corner</p> <p>G1 X270 Y290 F6000 ; back right corner</p> <p>G1 X270 Y10 F6000 ; front right corner</p> <p>G1 X10 Y10 F6000 ; front left corner</p> <p>G1 X10 Y290 F6000 ; back left corner</p> <p>G1 X270 Y290 F6000 ; back right corner</p> <p>G1 X270 Y10 F6000 ; front right corner</p> <p>G1 Y150 F6000 ; center back</p> <p>M18 ; disable all motors so you can check to make sure the Y-axis is parallel using YRAT tools</p> Category: 3D Printer Accessories