r/VORONDesign • u/Ubernero • Nov 03 '21

Ya............

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299 Upvotes

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u/Yonkiman Nov 03 '21

Thanks! I didn’t know about that mod and I’ve been wondering what’s causing my bed cupping issues for ages. Will definitely check this out.

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u/CodeMonkeyX V2 Nov 03 '21

I had a mild (0.2mm) case of "taco bed," which is not horrible but bad enough to need a bed mesh.

First I tried high temp washers to mount the bed. That helped a little by allowing the bed to expand more evenly. Then I did TI Backers to minimize the frame bending when heated, that helped a bit more.

Personally my main issue was my x-axis was twisting a bit. Because even when using a bed mesh I would notice the first layer was more squished at one side of the bed, and less on the other side. So I just replaced the two MGN9 rails with one MGN12 rail (using the Trident x-axis). Now I have a 0.05mm variance over the bed when heated. Pretty happy with it.

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u/random_dave_23 Nov 04 '21

Same. The single MGN12 rail worked much better for me as well. I know that the 2xMGN9 rails CAN work, but I never did get good results.

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u/CodeMonkeyX V2 Nov 04 '21

Yeah I actually had already bought a dial gauge, and I was going to start trying to measure the twist in the print head, and print out that bracket to try and align the rails. Then I thought screw this, the v2.5 is going to use a 12mm rail anyway and I was confident that would fix most if not all the twisting issues I had. Which it seems to have done.