Search found 322 matches

by mhackney
Wed Aug 29, 2018 11:48 am
Forum: Extruder Assembly
Topic: Can you detune the extruder to still use poor filament (Skip not shred)
Replies: 6
Views: 93

Re: Can you detune the extruder to still use poor filament (Skip not shred)

Make sure your first layer height is dead on. If your layers are supposed to be .2mm a single layer print should measure .2±.03 mm. If your first layer is too low there is no where for the filament to go and it can cause extruder issues like skipped steps/grinding. I'd start there. I'm actually a "u...
by mhackney
Wed Aug 29, 2018 10:01 am
Forum: Extruder Assembly
Topic: Can you detune the extruder to still use poor filament (Skip not shred)
Replies: 6
Views: 93

Re: Can you detune the extruder to still use poor filament (Skip not shred)

Yes, it is crazy to detune an extruder to compensate for inexperience, poor slicing, bad filament and all other issues. You apparently understand that microsteps come with a reduced holding torque so use your knowledge to fix the problem the right way. There are no issues with using cheap filament o...
by mhackney
Wed Aug 29, 2018 9:30 am
Forum: Calibration
Topic: Delta Arm Calibration for Positional Tolerance
Replies: 2
Views: 73

Re: Delta Arm Calibration for Positional Tolerance

Lucidwolf, I don't follow your question. You can get all of the details at https://reprap.org/wiki/G-code M665 configures most of the delta parameters. This is mine. Diagonal rod length is what you are calling "arm length". M665 L360.310 R210.650 H440.00 B140.0 X0.387 Y0.235 Z0.000 ; Set delta radiu...
by mhackney
Mon Feb 26, 2018 7:25 am
Forum: General Discussion
Topic: New issue, need some help.
Replies: 5
Views: 806

Re: New issue, need some help.

Agreed, something mechanical/electrical is going on that is causing one or more of the steppers to miss steps. The good news is, you have a smoking gun - the Y stepper. The connectors that plug into the Duet board are a good first place to start. One technique is to swap the Y with one of the others...
by mhackney
Fri Nov 17, 2017 8:08 am
Forum: Micro Extruder Assembly
Topic: PTFE tube length
Replies: 3
Views: 776

Re: PTFE tube length

Brad, I think west was referring to the original D300VS micro extruder PTFE from the V6. Do you have a length for that?
by mhackney
Tue Nov 14, 2017 7:36 am
Forum: D300VS-PLUS Upgrade
Topic: Spacer required for Titan Aero
Replies: 4
Views: 1096

Re: Spacer required for Titan Aero

I GREATLY prefer using the correct length of screws. Or you can simply file or grind your existing screws down. TIP: thread a nut on the screw first, then grind to length and remove the nut. This cleans up the end threads nicely.
by mhackney
Fri Nov 03, 2017 5:38 pm
Forum: Print Defects
Topic: [Solved] Printed parts larger than what they should be.
Replies: 6
Views: 1078

Re: Printed parts larger than what they should be.

Obviously, something is terribly wrong. There is no way that S7 should or could determine an arm length that is THAT far off reality. Are you SURE you have the right # of pulley teeth? Delete config-override.g, reboot. load bed.g and change the S6 to S7 and then run auto cal and see what M665 gives ...
by mhackney
Thu Nov 02, 2017 7:29 pm
Forum: Print Defects
Topic: [Solved] Printed parts larger than what they should be.
Replies: 6
Views: 1078

Re: Printed parts larger than what they should be.

Don't touch steps/mm until we sort the X-Y out. Most of the time it will fall in line. The quality of pulleys, belts and steppers is such that the calculated steps/mm for the towers should be right on.
by mhackney
Thu Nov 02, 2017 7:27 pm
Forum: Print Defects
Topic: [Solved] Printed parts larger than what they should be.
Replies: 6
Views: 1078

Re: Printed parts larger than what they should be.

Y-Y scaling on a delta is primarily a function of delta arm length. Z scaling is primarily a function of steps/mm for the carriage steppers. But both of the above interact with each other. My recommendation is to do a 7 factor calibration (change S6 to S7 in bed.g) and run 3 times. Then issue M665 -...
by mhackney
Thu Nov 02, 2017 7:06 pm
Forum: General Discussion
Topic: What rubbery filaments can a print with the stock D300V?
Replies: 4
Views: 1463

Re: What rubbery filaments can a print with the stock D300V?

The micro extruder can easily handly and\y flexible material. I've printed them all with no problems. BUT print slow and at the right temp.