V-Core 1.3 500
Should I just live with this or can anything be done? I think a little bit of this is the gantry sagging:
Max [168.3, 20.0] 0.229 mm
Min [465.0, 240.0] -0.454 mm
Range 0.683 mm
5 Replies
mine almost looked the same. Took me some time to figure out whats causing the problem. I ended up with inserting a 0.15 blade from a thickness gauge right in the middle of the gantry between the extrusion and the linar rail. since I have a 300 v-core 1.3 my linear rail has 16 mounting holes. i am only using the outer and inner 2. Been able to reduce the deviation from 0.3mm to 0.085mm.
oh interesting idea! I never thought about doing that
Try it. I'm pretty sure it will fix the problem.
First fix the x rail and then have a look on y.
I'd go with 0.5 in the middle of your gantry as a starting point
I feel like Y is caused by X, because of it's 3 point measurement
I don't have a thickness gauge to steel from but I have some blades I can remove the cutting edge from and try 🙂
You can also print the shims out of some heat resistant material like pa-cf., i did that to find the right thickness... Then i switched to a blade from a thickness gauge
And yes. Y is dependent on x. Since the probe point for your rear z is dependent on a straight and non bent gantry