CoreXY Ringing
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What could cause this? I'm assuming it's a G-Code thing since it wasn't there before.
On my printer (CR10 style) this would be caused by an incorrect pressure advance parameter.
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Hi @jens55 - As above, it seems to be related to the stiffness of the gantry... increasing the stiffness made the problem go away.
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DAA (M593) has an inherent flaw in that it only really works perfectly when there is 0 jerk.
Unfortunately it´s usually the jerk that causes most of the ringing... -
I somehow missed the picture with the final settings when I replied earlier.
That surface finish is incredible! I have never seen finish like that before even at a much lower speed. It's amazing what can be done if you don't sling a 2 kg (or whatever) bed around !Thanks for posting that ....
Hmmmm ..... food or new 3D printer ..... well this seems a good enough reason to go on a diet!
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@jens55 It's worth noting that I was only printing at 0.2mm layer height. It's easy (easier?) to get a nice finish at lower layer height - there's less molten plastic to deal with.
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At 300 mm/sec you can print as fast with 0.2 mm layers as I can go with a 1 mm layer height! It just amazes the hell out of me!
I hope that you might have a chance to share more pictures of your build as it progresses (or when it's ready for prime time). -
@jens55 with acceleration at 500 mm/sec^2 and jerk at 9 mm/sec, the printer probably never actually achieves 300 mm/sec.
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@jens55 said in CoreXY Ringing:
Hmmmm ..... food or new 3D printer ..... well this seems a good enough reason to go on a diet!
With a good multipaterial printer you can print your food!
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@mrehorstdmd The bed is 800x870 so there's plenty of room to move. But you're right, you need a bigger print. I'll increase Accel and Jerk soon - I decreased them to help eliminate those defects initially.
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@Gerrard Now look at corners of a square print- at low jerk and accel they then to get fat and rounded. Everything is a trade off.
