Fred Trevvett
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- Messages
- 377
- Location
- Harrogate UK
Any ideas how to sort this? I mean the bits that have curled up without sticking.
That was when the z limit switch was set too high. It meant that with the bed adjusted up to the right height in relation to the nozzle, there was too little preload on the springs so the adjustment wheels spun with the vibration. This caused the bed to sit too high, and the nozzle gouged into the bed and knackered it. I adjusted the switch down, then reset the level and now it stays where it's set.How are you setting your level? I see some evidence on that bed where the level was too low and you've squished a super thin track into the bed. You want to aim for something in between those two extremes!
That was when the z limit switch was set too high. It meant that with the bed adjusted up to the right height in relation to the nozzle, there was too little preload on the springs so the adjustment wheels spun with the vibration. This caused the bed to sit too high, and the nozzle gouged into the bed and knackered it. I adjusted the switch down, then reset the level and now it stays where it's set.
With regard to how I set it, I grabbed some paper but it was very thin so I folded it in half. I'll try resetting it with thinner paper and see what that does.
Incidentally, I use hairspray on my glass bed and have almost 100% success. The key is to coat it evenly, never touch the bed and wash/recoat every few reels. It doesn't need much!
I use a 50/50 mix of PVA glue (ie wood glue) and water painted on to the glass bed. I re-do it when prints start to fail (which is after *quite* some use).
Having said I try to steer away from overdecorating the ender with "upgrades"
The borosilicate glass bed has more plus points than not I think. Got it as we didn't want to go spraying or sticking adhesion promoters to the Ultrabase. The subsequent clean up with scrapers etc would have ruined it. That stays pristine pretty much but my lad will take the glass bed off if doing a big PLA print sometimes. It is (the Ultrabase), magic for PLA tbh.
On the glass bed he uses 3D-Lac spray, for PETG, TPU and ASA. Then it's a spray, print and periodic clean with IPA.
(Still yet to crack printing ABS! )
But off course some would see those as pointless upgrades