3D printing forums

I have 4 gears to print and wish to include a reinforcing sleeve in the centre. I need to make sure that the sleeve is exactly central to each gear rather than judging by eye. Is there a way to make sure both items are concentric before slicing? Cura 5.7 Thanks Brian CCT_4XSmallGear_Tube_Shaft.3mf

Okay, very funny. But I will be using my 0.2 mm nozzle. Super sharp outside corners are very important.   I had no bed adhesion or nozzle problems with my 0.2 mm nozzle on the Ender-3 — printing on a glass plate with Magigoo (and it had no enclosure).   I would pour the Magigoo straight out of the bottle, and use a soft tooth brush to spread it around. On the Ender-5, I just hadn't prepared the glass plate properly, I believe.   Today, I just finished cleaning the glass bed for my next Ender-5 attempts: I coated the bottom with some thermal paste using a 1" metal spatula, and let it sit a few minutes. It leveled itself.   I placed the glass plate onto the printer bed, it slid around very nicely, and I subsequently clamped it down. Nothing oozed out the sides (yet, at 100 °C). I applied the teflon tape to the nozzle threads, a very tiny strip (a couple wraps at about 3 mm wide). The tape is resistant up to 260°C, it says. The nozzle screwed in nicely at 230°C but I haven't printed anything yet to see if it works. I hope it doesn't leak. I didn't torque it down to the umpteenth force, like I usually do, when it leaks.   I will try using spray adhesive on the bed first, then move onto other adhesives. The Magigoo is a little sloppy, especially sloppy seconds.   I will report back on the results after a few attempts, probably in a couple days.   Thank you so much for your advice, I really appreciate it !!!   I will definitely scale down the array to a 2 x 2. Maybe I'll set up the bed to print four of them under different settings, something I haven't tried before (or know if it's even possible).    I really thought I could just repeat what I did from the Ender-3 days, but I guess not. I just thought I would lucky soon enough.

I ran a quick print with those settings and support turned on. It definitely improved the stringing problem, but didn't solve it completely. I'm curious what setting you tweaked?

Mijn zoon (13) heeft waarschijnlijk abusievelijk een verkeerde firmware update gedaan. Volgens hem stond het hele LCD scherm vol met U4 meldingen. Connectie via USB niet mogelijk. LCD is blauw (zie foto). Fan draait wel (hard als voeding aan staat, zacht als USB is aangesloten). Verder helemaal niets. Is er een oplossing voor dit probleem? Met vriendelijke groet, Sabri

"... the nozzle hit the object while passing from ..." I am not a fan of using "Z-Hops" but for some models it is unavoidable. There are several causes of the nozzle hitting a print.  The two most popular are: Depending on the Infill Pattern, the infill can develop high points that are above the layer height.  Enabling "Connect Infill Lines" can help with this. Feather edges develop and warp upwards (like when closing large horizontal holes). Enabling "Z-hop on Retraction" can help a lot.  I usually set it to 0.50mm.