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I hope Ultimaker team is aware of the lack of feature compare to the price they charge for their products.
I also made the switch from UMS3 + Prusa I3Mk3 for the BambuLab X1C. We still have a S5 at work but we are not planing investing in other Ultimaker product at this time.
Can be multiple issues. Start with the calibration of the first layer; if your bed is warped maybe the material is not squished enought against the printing surface causing poor adhesion. Make sure your print surface is clean and/or add gluestick/ 3Dlac/Magigoo.
Le polypropèlene est "autolubrifiant" et est un bon matériel pour réduire la friction mais je ne suis pas certain qu'il a une grande résistance à l'abrasion. Néanmoins, ce serait le matériel que je recommanderais pour l'application.
When I was printing with PP, I put packaging tape (PP based) on the entire print surface. The printed object fuse with the tape and give a good bonding.
I'm using APC 1350VA with no problem.
https://www.apc.com/ca/en/product/BR1350MS/apc-backups-pro-1350va-810w-tower-120v-10x-nema-515r-outlets-sine-wave-avr-usb-type-a-+-c-ports-lcd-user-replaceable-battery/
Depending on the print, the UPS can last 15-20 minutes.
While you can change print settings to acheive better precision, usualy a 0,2mm gap is required between mating parts to being able to assemble them when printing on a UM printers (My experience is on UMS3 and UMS5).
You can get better precision with other printer brands (0,02mm on Prusa I3Mk3 and 0,00 on Bambu lab X1C)
I have both a S5 at work and a Bambu lab X1 Carbon + AMS at home. Before the X1 I had 2 Prusa Mk3 and an UM S3. When the bambu lab came out I rush out selling all of them. In my opinion the X1 is a far better value than anu UM printers. Don't get me wrong I love the S5 and S3 but they sell to high for the performance they bring.
I'm looking formward for the demo. Having a first generation S5 at work (no air manager) that could be a nice upgrade but nothing compare to my personal Carbon X1C from Bambu lab... I would have expect more drastic changes from UM.
Since the printhead needs to move from one column to the other, it might be a ozzing issue caused by the retraction settings not optimised for this material.