Alas printing, well sorta January 04, 2014 06:35PM |
Registered: 10 years ago Posts: 21 |
Re: Alas printing, well sorta January 04, 2014 07:04PM |
Registered: 13 years ago Posts: 2,947 |
FFF Settings Calculator | Gcode post processors | Geometric Object Deposition Tool Blog |
Tantillus.org | Mini Printable Lathe | How NOT to install a Pololu driver |
Re: Alas printing, well sorta January 05, 2014 01:47AM |
Registered: 10 years ago Posts: 21 |
Quote
Sublime
Between this and the last problem with skipped steps I think you should reduce your travel speed in Kisslicer and see if it helps. Default 150 and I would try 120. If that fixes the skipped steps you can move on until things are broken in a little more before trying faster again.
Quote
A 1 mm positive offset is kind of a lot. The reason I say it is a lot is because the positive offset tells the machine the nozzle is 1mm above the bed and then the bed moves up to take up said distance. But since the end stop switch only has a little bit of travel the 1mm may actually be pushing the switch up which will change the offset if it moves. I would move the switch up a little and then redo the offset calibration.
Quote
For the cube prints I see a few things. The Z axis may be a little sticky or the Z lift bracket is too tight in the Z arms so you are getting wobble. The flow looks good for really solid parts but I think you could lower it by 5-20 for more precision. I say that because the photo looks a little like the top surface has small ridges between paths but that may just be the lighting.
Re: Alas printing, well sorta January 05, 2014 03:07AM |
Registered: 10 years ago Posts: 87 |
Re: Alas printing, well sorta January 06, 2014 12:28AM |
Registered: 10 years ago Posts: 21 |
Re: Alas printing, well sorta January 06, 2014 01:02AM |
Registered: 13 years ago Posts: 2,947 |
FFF Settings Calculator | Gcode post processors | Geometric Object Deposition Tool Blog |
Tantillus.org | Mini Printable Lathe | How NOT to install a Pololu driver |
Re: Alas printing, well sorta January 06, 2014 01:05AM |
Registered: 10 years ago Posts: 87 |
Re: Alas printing, well sorta January 06, 2014 01:12AM |
Registered: 10 years ago Posts: 87 |
Re: Alas printing, well sorta January 06, 2014 01:24AM |
Registered: 13 years ago Posts: 2,947 |
Quote
Robonz
; Set extruder flow to nnn mm/min
M92 E465
; maximum feedrate that your machine can sustain (M203 X200 Y200 Z300 E10000) in mm/sec
M203 E60
; set max acceleration mm/s^2 for z axis and exruder
M201 Z100 E70
;retract_acceleration mm/s^2 filament pull-pack
M204 T70
FFF Settings Calculator | Gcode post processors | Geometric Object Deposition Tool Blog |
Tantillus.org | Mini Printable Lathe | How NOT to install a Pololu driver |
Re: Alas printing, well sorta January 06, 2014 01:58AM |
Registered: 10 years ago Posts: 21 |
Quote
Sublime
First question is what voltage are you running the machine on?
Quote
The extruder noise may be it trying to go faster then it can actually turn. In the firmware try reducing the speed until it stops making the noise and report the speed back here.
Quote
The z-lift bracket should only move in the arms in X and Y, Not in Z.
The wobble is most likely a product of your aluminium coupler not being centered. The reason the default one has the rubber tubing in it is to absorb some of the wobble that your aluminium one is transferring to the rod. You could also try loosening your Z motor bolts just enough that the motor can move around instead of the lead screw.
The skipped steps on Z and E could be a result running the machine off of 12v instead of 15v. The speeds that are set for Tantillus in the firmware and Kisslicer are all designed around a 15v system which allows slightly faster steps without loosing torque.
Re: Alas printing, well sorta January 06, 2014 02:08AM |
Registered: 10 years ago Posts: 87 |
Re: Alas printing, well sorta January 06, 2014 02:46AM |
Registered: 13 years ago Posts: 2,947 |
Quote
flemming
Quote
The extruder noise may be it trying to go faster then it can actually turn. In the firmware try reducing the speed until it stops making the noise and report the speed back here.
Is this something that can be changed via the LCD or when slicing, or is it only in the firmware? What specific option should I be changing?
Quote
Quote
The z-lift bracket should only move in the arms in X and Y, Not in Z.
The wobble is most likely a product of your aluminium coupler not being centered. The reason the default one has the rubber tubing in it is to absorb some of the wobble that your aluminium one is transferring to the rod. You could also try loosening your Z motor bolts just enough that the motor can move around instead of the lead screw.
The skipped steps on Z and E could be a result running the machine off of 12v instead of 15v. The speeds that are set for Tantillus in the firmware and Kisslicer are all designed around a 15v system which allows slightly faster steps without loosing torque.
I centered the coupler (I had it shifted down to allow for the full Z height) and the visible wobble is gone. As for the "skipped" steps, I'm only seeing them when moving the Z axis with the knob. If I move the axis in pronterface, it goes way faster and I don't see or hear the skipped steps. Perhaps that's a red herring.
Robert
FFF Settings Calculator | Gcode post processors | Geometric Object Deposition Tool Blog |
Tantillus.org | Mini Printable Lathe | How NOT to install a Pololu driver |
Re: Alas printing, well sorta January 06, 2014 09:32PM |
Registered: 10 years ago Posts: 22 |
Re: Alas printing, well sorta January 07, 2014 01:48PM |
Registered: 10 years ago Posts: 21 |
Quote
Sublime
Yes and no. You can change the speed via the LCD (see the retraction calibration section of the tutorials page on Tantillus.org) But since EEPROM is disabled it will not stay for more than one print. You will then have to set it in the firmware and reupload to make it permanent (also in the retraction calibration). You could enable EEPROM but that can lead to troubleshooting issues since they stay even when uploading new firmware.
Quote
Sublime
The z-lift bracket should only move in the arms in X and Y, Not in Z.
The wobble is most likely a product of your aluminium coupler not being centered. The reason the default one has the rubber tubing in it is to absorb some of the wobble that your aluminium one is transferring to the rod. You could also try loosening your Z motor bolts just enough that the motor can move around instead of the lead screw.
Quote
Sublime
If it is just when you turn the knob it may actually be a result of the knob and the timing of the firmware reading it. I have a hard time ever getting any of my machines to move smoothly with the knob unless I am really careful and smooth.
Quote
cns1
Hey, just for the heck of it would you please wait till your hot-end is cooled down to room temp. hold the carrage steady with one hand an grab the nozzel by the heater block and see if you have any play (wiggle) between the J-head groove mount and the piece of plexi in the X-Y carriage.
Re: Alas printing, well sorta January 07, 2014 02:14PM |
Registered: 13 years ago Posts: 2,947 |
FFF Settings Calculator | Gcode post processors | Geometric Object Deposition Tool Blog |
Tantillus.org | Mini Printable Lathe | How NOT to install a Pololu driver |
Re: Alas printing, well sorta January 08, 2014 12:44AM |
Registered: 10 years ago Posts: 87 |