Warped Onyx Board V2
Posted: Fri Feb 16, 2018 12:44 pm
Hi all,
I recently have had a lot of trouble getting consistent first layers on my V2 and tracked it down as best I could to a warped heated bed. I never really had great success with the printer despite the hours or trouble shooting, so this may have been the culprit all along. It just got much worse lately.
Below are a couple images of what was happening with the first layer no matter how many times I calibrated and accounted for the bed using Matter Control's leveling. I do not have a probe on my V2.
https://imgur.com/EWLxE2K
https://imgur.com/EbrShpj
And below is what I did about it given that you cannot buy the V2 beds anymore (though rumor has it they are on eBay). Hopefully my experience will help someone else get past it.
https://imgur.com/rZ4fXQL
I went old school and basically shimmed the glass. Since the glass bends to match the constrained bed, I decided to place a shim under each clip. To get the height correct (in my case this is 2 layers of index card stock with shuretape (.010" thick double sided tape we use for fixturing stuff) between the layers) I just added layers until the glass no longer spun freely on the bed (which is humped up in the center) as the friction of the shims at the perimeter held it stable. I suggest doing it heated up because the hump grows as it gets hot. Now with the clips in place the glass no longer deforms (as much) to the meet the bed.
I have had limited opportunities to fully test this out but it seems much better. Probably pretty obvious to most, but it took me a couple years to get this far. Maybe some others with these older machines will benefit.
If anyone has come up with a fix to reshape the bed without damage, I would love to hear about it.
Cheers!
Dave
I recently have had a lot of trouble getting consistent first layers on my V2 and tracked it down as best I could to a warped heated bed. I never really had great success with the printer despite the hours or trouble shooting, so this may have been the culprit all along. It just got much worse lately.
Below are a couple images of what was happening with the first layer no matter how many times I calibrated and accounted for the bed using Matter Control's leveling. I do not have a probe on my V2.
https://imgur.com/EWLxE2K
https://imgur.com/EbrShpj
And below is what I did about it given that you cannot buy the V2 beds anymore (though rumor has it they are on eBay). Hopefully my experience will help someone else get past it.
https://imgur.com/rZ4fXQL
I went old school and basically shimmed the glass. Since the glass bends to match the constrained bed, I decided to place a shim under each clip. To get the height correct (in my case this is 2 layers of index card stock with shuretape (.010" thick double sided tape we use for fixturing stuff) between the layers) I just added layers until the glass no longer spun freely on the bed (which is humped up in the center) as the friction of the shims at the perimeter held it stable. I suggest doing it heated up because the hump grows as it gets hot. Now with the clips in place the glass no longer deforms (as much) to the meet the bed.
I have had limited opportunities to fully test this out but it seems much better. Probably pretty obvious to most, but it took me a couple years to get this far. Maybe some others with these older machines will benefit.
If anyone has come up with a fix to reshape the bed without damage, I would love to hear about it.
Cheers!
Dave