this post was submitted on 12 Jun 2023
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Just finished building this beast. It's a ratrig Vcore 3.1 with a 500x500x500mm build volume and blazing speed.

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[–] [email protected] 1 points 1 year ago (1 children)

North of ~25mm^3 I've found I need to really up the temps to keep up with PLA (mainly using eSun) which then also means a lot more cooling. I managed a pretty decent 14 minute benchy but need to retest as I've upgraded my cooling.

My current setup for extrusion:

  • Rapido high flow with CHT
  • Orbiter 2 with blowy mod to run at higher current
  • CPAP remote cooling with a WS7040 blower
  • HUVUD toolboard on printhead
[–] GoldenSpamfish 2 points 1 year ago (1 children)

Mine is basically the ratrig recommended defaults except for the CHT, a beacon scanner, and a carbon fiber rail. I got to a 16 minute benchy basically immediately, but anything else I print that fast causes either skipped steps or belt slips and I'm not sure why.

[–] [email protected] 1 points 1 year ago (1 children)

Nice not bad! A pretty easy upgrade for power (if you have a mainboard that supports it) is to go to 48v for the steppers with 5160 step sticks, gobs more power, but you are also now getting to territory where a crash can start really breaking stuff. There is also a group in the discord where they are working on the AWD mod to add 2 more steppers to the XY motion allowing for insane speeds.

[–] GoldenSpamfish 1 points 1 year ago

Oh so that's what AWD is? Sounds cool. For me though, my issue is probably down to belt tension.