Search found 55 matches

by ksevcik
Wed May 03, 2017 7:01 pm
Forum: General Discussion
Topic: The State of the Gear
Replies: 106
Views: 34325

Re: The State of the Gear

Farr0wn3d wrote:I am definitely interested in upgrading to the new dual independent X drive setup.
I have to think that's going to require electronics (since the Rambo only has 5 stepper drivers), plus the new top plate, extra extruder hardware.... That's going to be an expensive upgrade kit, really.
by ksevcik
Wed Apr 05, 2017 5:08 pm
Forum: General Discussion
Topic: Gaps in solid layers, why?
Replies: 15
Views: 7981

Re: Gaps in solid layers, why?

I'm really really pretty certain that the double line thing is backlash. Try printing the attached stl. It's a square with 6 0.1mm steps on each side. I've labelled the sides with the axis that would be the problem if you're missing a step. You're likely to see bumps from the sudden change in direct...
by ksevcik
Tue Mar 28, 2017 5:51 pm
Forum: General Discussion
Topic: Gaps in solid layers, why?
Replies: 15
Views: 7981

Re: Gaps in solid layers, why?

If you're doing standard 45,-45 infill and your concern is the part you have circled there, that's almost certainly backlash. Both axes change directions on the alternating lines there, and any backlash means X or Y doesn't move the full distance on a direction change. For instance, if there's 0.1mm...
by ksevcik
Wed Mar 15, 2017 7:22 pm
Forum: M2 Dual Extruder
Topic: Can support increase accuracy/definition of small features?
Replies: 19
Views: 11597

Re: Can support increase accuracy/definition of small featur

Any reason those have to be a solid piece? The letters would print MUCH nicer flat, so maybe you could have a generic cover base and print panels that you can glue on top.
by ksevcik
Tue Feb 21, 2017 9:51 pm
Forum: Tech Support
Topic: Can you help make a large print? (Offset Problem)
Replies: 4
Views: 1607

Re: Can you help make a large print? (Offset Problem)

Without seeing the part, I would actually guess that there's overhangs that are curling up and they eventually curl enough to catch the print head and make the steppers skip. Unless you have terrible adhesion, a part with that footprint is going to jam the steppers before it moves on the build plate.
by ksevcik
Sun Feb 19, 2017 7:00 pm
Forum: Tech Support
Topic: Can you help make a large print? (Offset Problem)
Replies: 4
Views: 1607

Re: Can you help make a large print? (Offset Problem)

What's the print? I can run it on my M2 in black or yellow PETG, but I'm in Houston. You're probably not going to get it before Bag Day on Wednesday, so it'll have to be part of the withholding allowance. But if there isn't anyone more local to help you, I could do it. Have you or the team posted a ...
by ksevcik
Mon Feb 06, 2017 6:15 pm
Forum: Modifications
Topic: Glue belt in belt clamp - a bad idea?
Replies: 6
Views: 3690

Re: Glue belt in belt clamp - a bad idea?

SDP-SI sells polycarbonate or aluminum GT2 3mm belt clamps. The polycarbonate ones are meant for open ended belts, so the bolts goes through the center where belt would be if it wasn't cut. The aluminum ones have bolts that straddle the belt.
by ksevcik
Fri Jan 27, 2017 4:31 am
Forum: Tech Support
Topic: What's happening here?
Replies: 6
Views: 1675

Re: What's happening here?

That's definitely the z stepper missing steps. It might be binding slightly or something. I think you could probably patch it by just reducing the z axis acceleration, or the speed of that move in the start script. That particular move doesn't have to be THAT fast.
by ksevcik
Wed Jan 25, 2017 5:03 am
Forum: Tech Support
Topic: Suggestions wanted for effective Rambo cooling
Replies: 2
Views: 1024

Re: Suggestions wanted for effective Rambo cooling

Surface mount drivers like the FETs and steppers on the RAMBO are designed to dump heat to a big pad on the underside of the chip. The RAMBO has a ton of vias under these chips to spread that heat out as much as possible. Since the hottest part will logically be directly under the chip, that's where...
by ksevcik
Tue Jan 24, 2017 1:20 pm
Forum: Tech Support
Topic: New bedleveled and Z-stop calibration equals terrible prints
Replies: 6
Views: 1345

Re: New bedleveled and Z-stop calibration equals terrible pr

Agree with Jules. You're farther away on the first layer now, so it's not sticking as well, so it's letting that side peel up and warp. The warping is what explains the randomly smushed layers on that side, as it slowly pushes up the already extruded plastic on that side, making the gap smaller ever...