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I need to print some improved tubing connectors, 3 different types - 80 Pcs total, for a pair of crappy shelving units my Wife bought off of Walmart. The originals were as minimal material as possible without missing the nylon tree completely.
The Klipperized Mk3s with a .60mm nozzle is nearly as fast as the mini with a .40mm nozzle. Once again proving it's not how fast you say you can go, but how fast the parts let you go..........
I bear modded mine at the same time and a few other things, biggest for me was that I liked my macros on my voron and I could share them and the motors are substantially quieter.
I haven't pushed it acceleration wise, do you have any print profiles for prusaslicer or the like? I definitely have room to work with on mine.
Your Bear mod will be a lot different than my stock frame and E3D Revo V6 hotend. The profiles I have been using are based on what I think I can get away with from what I learned about from the input shaping. I think you can get away with a bit more than I can. Particularly if you went from the 8mm linear rods to a set of linear rails. That would be far more rigid and vibration damping along with the heavier frame. Did you go with a high flow extruder too? I've been debating on a .40mm Revo ObXidian high flow nozzle lately. But The cost is high even for the Revo eco-system.
I kept them with linear rods, rails were more than I wanted to do at the time. I changed over to a dragon HF after liking it on my voron, just to keep common parts. Hey, its good to know at least that I can probably push more, tuning a profile for it is definitely going to be on my list.
The ObXidian nozzles are really nice, I just have a 0.4mm and 0.6mm regular nozzles, I've used a bunch of hardened coated nozzles before, seem nicer than those but haven't tested much.
I think those linear rods and bearing are the weak part of the system. They are too prone to vibrations and whipping around at high speeds. But I'm too lazy to go after more upgrades on my printer at this point.
I do have a standard flow .60mm ObXidian for abrasive filament, but they were a LOT cheaper then. Plus I already have a lot of brass Revo nozzles already. But...........I want.