Gina
-
Posts
45,326 -
Joined
-
Last visited
-
Days Won
120
Content Type
Profiles
Forums
Gallery
Events
Blogs
Everything posted by Gina
-
Hmm... The PLA won't come out or retract. Shouldn't have tried it - I've had that problem before!!!! Have to strip down the hotend tomorrow and drill the PLA out I expect.
-
I think you're right - the PLA won't stick to the bed. I'll try the rigid.ink PETG extremely good filament. Or watch Sky at Night or both
-
I've swapped filament to PLA - see how that works - also changed settings to suit.
-
The first layer printed fine and stuck to the aluminium bed but the second was patchy.
-
Both XY drums now replaced and cords re-threaded. XY drives now work perfectly Test print run in process. BUT filament had lumps and the nozzle caught on it and caused a move in origin
-
Is it? I have some so I can try it. In what way do you think PLA is easier - does it stick better to aluminium? I'm used to ABS and PETG.
-
The X+Y drum is problematic so I'm replacing it. The filament seems to drop down off the drum onto the motor shaft.
-
The slurry stuck well to the aluminium and the filament stuck to the slurry. Maybe the filament will stick to the aluminium bed if I reduce the clearance.
-
I think the nozzle want to be a bit closer to the bed for the first layer. Currently at 1.5mm for 2mm nozzle.
-
Some pics.
-
Made a smaller test mode. Filament extruded alright and stuck to bed with the ABS slurry BUT the Bowden coupler came undone from the heatsink!
-
Still too fast so going right down to 10mm/s and ABS slurry on bed for adhesion.
-
Bed probing works fine. Extrusion not! Can't get sufficient grip on the filament with the extruder even with the pressure screwed up tight! Filament isn't sticking to aluminium bed may need some sort of surface treatment. One bit stuck though. I'll trying printing slower - currently at max of 40mm/s.
-
Z probe re-calibrating 1.022 mm 1.030 mm 1.035 mm near enough 1mm.
-
Just a small problem - Z probe too high. Thought the 0.75mm was a but near the bone! No trouble to fix...
-
And we're off! Currently heating up.
-
Am I mistaken or is it now ready to try printing? I have a test object to print. 200mm ID and 30mm high.
-
Everything now seems fine and calibrating the Z probe - reported height 0.698 mm 0.742 mm 0.741 m 0.779 mm 0.774 mm 0.767 mm. Average = 0.750. That's a very accurate figure considering the 2mm nozzle! Value replaced for G31 in config.g also bed probing set to M557 X50:450 Y50:450 S200 ; Define mesh grid
-
Having to print longer drums - at least for the X-Y as the cord came off the end when I tried to home X. If the cord comes off the X+Y I shall need to replace that one too - so far so good.
-
Next to set up Z probe offset.
-
Bed heater all connected, power switched on and bed set to 110°C. Heater working perfectly The SSR has an LED which lights up when SSR is on and can be seen through the transparent red ABS cover.
-
Now connecting up the print bed heater. Being mains powered this uses an SSR (Solid State Relay) and since there are exposed terminals and it didn't come with a cover, I'm 3D printing one. Also, connecting mains earth to the printer frame and aluminium bed plate. All this takes extra time but I don't like electric shocks and take every precaution to prevent it happening.
-
Drilled out Bowden coupler and eventually, with a point filed on the end of the filament, I was able to push the filament through the coupler. Then heated up the hotend, screwed the coupler into the heatsink and was able to extrude filament remotely. I also extracted alright. So one step further
-
Found the problem! As they say in automobile parlance "The problem was the nut behind the wheel" The X+Y motor wasn't plugged in! Daft Davis of Devon strikes again!!! Working correctly now I'll drill out the Bowden coupler tomorrow and connect the bed heater. Then I should be ready for my first test print run.
-
It is definitely not running in CoreXY mode - only one motor is turning at a time when trying to move X or Y. I've tried adding M667 S1 ; Select CoreXY mode in the Drives section but no difference.
