Search found 176 matches

by chumm
Sun Nov 05, 2017 3:11 am
Forum: 3D Printers
Topic: Dolly Configuration
Replies: 38
Views: 6439

Re: Dolly Configuration

You say the probe triggers, does that mean it eventually triggers while it's crashing into the bed, or it looks perfectly normal but the number it outputs is way off? It looked like you had a PEI sheet or some other build surface, some of the tiny probes like the ones in the Dolly guide have such a ...
by chumm
Fri Nov 03, 2017 7:24 am
Forum: Help requests / Purchasing assistance
Topic: Parts suggestions
Replies: 22
Views: 5240

Re: Parts suggestions

A 24V bed isn't going to heat up quicker. Not unless you are running a 12V heater w/ a 24V PSU, which is dangerous. Which is extremely fast and rad you mean :lol: Do you know of any specific safety issues besides the fact that if it fails, it can fail more spectacularly? On the 24v into 12v beds I'...
by chumm
Thu Nov 02, 2017 8:08 pm
Forum: Help requests / Purchasing assistance
Topic: Parts suggestions
Replies: 22
Views: 5240

Re: Parts suggestions

You should probably get a 30a PSU, 20a will likely be a bit too low. An MK3 bed is fine and cheap. 12v heats pretty slowly and can have a hard time reaching higher temps over 90, so you could upgrade to 24v, but RAMPS doesn't support 24v natively, it needs to be modified. Alternatively you could buy...
by chumm
Thu Nov 02, 2017 2:54 am
Forum: 3D Printers
Topic: Dolly Configuration
Replies: 38
Views: 6439

Re: Dolly Configuration

I'm gonna offer a guess that, if your motor current is ok, the set screws on your X pulley might need to be tightened. The slips seem to be a similar size, which could be equal to roughly a quarter turn of a pulley if the screw was being pulled at a certain position. You could also have the motor cu...
by chumm
Tue Oct 31, 2017 9:30 am
Forum: 3D Printers
Topic: Dolly Configuration
Replies: 38
Views: 6439

Re: Dolly Configuration

The 0,0 point on that grid is the point nearest to your bed's origin, where x and y are 0. So if your origin is bottom left you'd mirror that grid vertically to get it to look like the shape of your bed: Bilinear Leveling Grid: 0 1 2 3 3 -0.15 -0.37 -0.60 -0.83 2 -0.18 -0.39 -0.63 -0.86 1 -0.17 -0.3...
by chumm
Mon Oct 30, 2017 3:10 am
Forum: Help requests / Purchasing assistance
Topic: Exturder clicking on same height of print
Replies: 5
Views: 1263

Re: Exturder clicking on same height of print

Retraction distance is probably too high, try 1.0mm.

You can also check off "Enable retraction" and try a print to see if it works without retraction, then you will know if retraction is the problem.
by chumm
Mon Oct 30, 2017 2:13 am
Forum: 3D Printers
Topic: Dolly Configuration
Replies: 38
Views: 6439

Re: Dolly Configuration

When I home all Axis, Z is 22 but is resting about 5mm above the bed. I manually leveled my bed with a sheet of paper so that 0 should be a paper width away from the bed. It is not because when I put G1 Z0, the probe doesn't trigger. That's how I got the -12, by adding the offsets. At this point, I...
by chumm
Sun Oct 29, 2017 8:43 pm
Forum: 3D Printers
Topic: Dolly Configuration
Replies: 38
Views: 6439

Re: Dolly Configuration

M851 is now set all the way to -12 and it's still not printing correctly. Well, this is a mile away from where a Z offset should be, so there's gotta be another issue besides the value. Does your printer have an LCD? Checking that the printer has the Z value correct is much easier if you have an LC...
by chumm
Sun Oct 29, 2017 3:50 am
Forum: 3D Printers
Topic: Dolly Configuration
Replies: 38
Views: 6439

Re: Dolly Configuration

If you're using Slic3r, you can set the Z offset under printer settings/general. Those instructions I linked are the procedure, but basically set it to -0.2 if you want it to print 0.2mm closer to the bed, +0.1 if you want it to print 0.1mm higher, etc. For the auto bed leveling, make sure you're do...
by chumm
Sat Oct 28, 2017 3:13 am
Forum: 3D Printers
Topic: Dolly Configuration
Replies: 38
Views: 6439

Re: Dolly Configuration

That auto leveling shows that you have a pretty significant deviance in your bed heights from corner to corner, 1.68mm at the most extreme. This is mostly fine as the software should correct for it. To make sure it's working properly, have a look at the Z motors when the printer is moving along X an...