molten prawn
I know this one is super quick, so was going to ask in the General channel but second thought asked here.
Kit is on order and I'm printing all the parts. I purchased Califlower to tune skew and shrinkage per recommendation in the docs.
Skew is done (second print showing 0.01% skew). Shrinkage calculated at 99.50 (using OrcaSlicer).
Questions: Does this shrinkage seem reasonable/comparable to what others have? And, if so, I assume I use this for all prints?
Thanks in advance.
Oh, and I'm using ABS (Polymaker)
balmy tide
this seems about right,
what you can do before doing batch printing of all the parts is to print an extruder and see if it fits correctly toghether, or a respooler.
even if you don't have all the parts on hand you can try it out and see how it is. the best would be to assemble one completely but if you don't have the parts...
molten prawn
Thank you, I asked because Voron parts don't seem to need shrinkage, so rather new to me and wasn't sure if 0.5% shrinkage was reasonable. I have a spare Bondtech gear set. I did print the extruders without shrinkage (forgot to change the filament profile) and noted that the bottom bearing seemed like it was going to be excessively tight, and the extruder tops seemed like the needed to be "pushed down" where the two detents are. I've tuned for flow and parts don't appear overextruded at all.
Just wish I had one of the other bearings to test fit.
molten prawn
That is exactly what I was looking for! Thank you so much!
I calculated 99.50 via Califlower, so that matches very closely!
balmy tide
yup
PM is very consistent i'll give it that
black is not the blackest but i'll make a do
full shuttle
That's a number I've personally seen across like 7 or 8 machines
molten prawn
First time with Polymaker. Mostly used Inland ABS (eSun, although I heard some are now Polymaker), although I haven't printed a lot of ABS until recently (Voron 2.4 build). So far, I'm happy with it, the parts are amazing and it seems to have lower odor. Thanks again for such a quick response, I can now move confidently with my prints. Looking forward to joining the BT community.
(awaiting Phase 3 shipment)
molten prawn
Thanks to all for your help, I do appreciate it! This is solved (not sure how to mark it that way, not a Discord expert). For others who may find this in a search, I thought I'd provide an update. As the instructions say, compensating for polymer shrinking is indeed very important. I reprinted the extruder cases, and everything fits SO much better: the lid, which originally had a rather tight fit where the two alignment detents are, now just go on easily and those small bearings on the large extruder gear now seem to slide in with the clearance I would expect (holds them well but don't need to push them in with the same force as the ECAS connectors!).
full shuttle
Did you do testing on your own or just run with the numbers we provided?
molten prawn
I bought Califlower and used the number it provided for shrinkage. Bonus was to ensure my skew was taken care of too (it needed a minor adjustment). It calculated 99.50 for the shrinkage value, which is extremely close to the one Absak provided (99.54).
So I say Califlower does work!
molten prawn
Ah, now I know how to do that! Thanks.
full shuttle
Yep