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Anything related to printer controllers not being Duet, RAMPS or Sanguinololu: microprocessors, motor and heater driver circuitry, gEDA/KiCAD issues, soldering tips, etc.
Should we earth V- (GND) on the DC side of the PSU - 1 year ago
Spent a few hours searching about this question... I'm currently finalizing a Voron 2.4. Everything is earthed, and I get 0.3 to 1.5 ohm from any point of the frame to the wall wart end of the power cable (measured from screws as the Misumi extrusions are powder coated) ; after zeroing the ohmeter ; Not great, but most likely good enough ; I know that it should be measured with specialized equipby yet-another-average-joe - General
Re: VFA (vertical fine artefacts) - 1 year ago
Yep ! Was searching with "UMM" instead of "UMMD" Found pics :by yet-another-average-joe - Printing
Re: VFA (vertical fine artefacts) - 1 year ago
Follow up... All VFA's are gone ! Couldn't believe it ! First, the noname belts were replaced with Gates ones. They were really falling apart. Have to retrieve them and post a picture. I didn't throw them away but can't remember where they are. It's an horror show. Then : input shaping : tuned using accelerometers, stealthchop : deactivated, and microsteps : 64. Marlin/Octoprint definitely repby yet-another-average-joe - Printing
Re: Possibly building 3D printer - seek a bit of advice ... - 1 year ago
Couldn't a wiper motor or automotove window motor give its worm gear ? These motors are dirt cheap; or even free. Only problem is removing the rotor ; an angle grinder could do it. The CNC can machine the couplers. These worm gears are intended to last very long under heavy loads, so we can assume they are precision parts (steel worm + nylon pinion + self lubricating bronze bushings). (long ago,by yet-another-average-joe - General New Machines Topics
Re: Tool for sanding disc brake pads - 1 year ago
Interesting. You just gave me some ideas for non critical machining jigs (milling), and light cuts that won't produce too much heat... Been amazed by 3D printing repeatability after using metrology instruments and seeing it with my own eyes. I've also seen professionals using 3D printed patterns for metal sheet folding. Never thought it could be usefull at removing material... Another tool in theby yet-another-average-joe - Look what I made!
Re: Moving a parameter from compile time to run time - 1 year ago
For creating a custom gcode and parse a parameter, see here : For writing/reading to/from EEPROM, just analyze the code from a gcode that does it ? Shouldn't be too hard.by yet-another-average-joe - Firmware - Marlin
Re: Building a CoreXY : machined or printed parts ? - 1 year ago
Not sure about z-hop. Maybe for making Z-IPA ? The more z-hop, the more tastier the Z-IPA is. Hop is life ! But always failed at using it, even if it isn't a new product by any means (10 years old in Cura and Marlin, I just did some search with Google)... This being said (it was important), from the stepper(s) point of view the mass is "divided" by the reduction ratio... But the rotational accelby yet-another-average-joe - Mechanics
Re: BLTOUCH - AutoHome Z will not stop - 1 year ago
Been afraid of Klipper for years. Finally it's much easier to learn than Marlin. Tuning by trial and error is much faster as there's no need for compile/flash. At first I installed it because I wanted to use accelerometers for Marlin Input Shaping tuning ; didn't want to spend hours printing towers ; the plan was to have two sets of SD cards (SKR Pro 1.4 + RasPi) : one for Marlin + OctoPrint, theby yet-another-average-joe - Printing
Re: BLTOUCH - AutoHome Z will not stop - 1 year ago
Geat ! I also recently ran into problems with my very old AntcLabs BLTouch v2.0 while switching to Klipper. Probing without retracting didn't work as expected. AFAIK this mode is supported by v2, but I could be wrong ! The old BLTouch had a cracked casing, so I finally replaced it for a brand new 3.1 (because of the bad experience with an earlier 3DTouch, and even if you showed great repeatabiliby yet-another-average-joe - Printing
Re: BLTOUCH - AutoHome Z will not stop - 1 year ago
I am just thinking of a parameter I completely forgot about : ENDSTOP_NOISE_THRESHOLD Read this issue on Git : Scroll down : I had a similar issue !!! And have a look at the answer I was given by AnHardt, a Marlin team member. Since then, in Configuration.h, I always have : #define ENDSTOP_NOISE_THRESHOLD 2 This could be the solution. I verified your Configuration.h, this line is commented.by yet-another-average-joe - Printing
Re: BLTOUCH - AutoHome Z will not stop - 1 year ago
You're thinking EMF ? Why not... But 10µF (electrolytic) should be maried with a ceramic (high frequency "aware") 0.1 µF... Your repeatability test looks great... Let me tell a story about EMF I'm facing right now. I built a RasPi cape/shield that displays the Marlin UI over Octoprint as a on screen display (in a overlay window, using low level RasPi GPU API's : 12864 emulator). The bed is mainsby yet-another-average-joe - Printing
Re: My custom watercooling setup - 1 year ago
"Machining this stuff is like machining bad cast iron with massive inclusions" Was aware of this thread, but didn't notice !by yet-another-average-joe - Developers
Re: My custom watercooling setup - 1 year ago
Sorry if I'm out of topic... What about machining laser sintered stainless steel ? Love machining stainless (amazing surface finishes), but can be tricky, and quickly destroy tooling. I've really been pleased with JLCPCB PCBs, and been interested in their metal 3D printing services for a couple of years, as soon at it appeared on their website... first time I see pictures named with UUIDs...by yet-another-average-joe - Developers
Re: BLTOUCH - AutoHome Z will not stop - 1 year ago
Maybe you got a lemon... Or 3DTouc are lemons. Had an earlier version, it was an absolute crap, and unusable. Never again ! Here's a test I did, dated may 2019 : BLTouch vs 3D Touch ; repeatability test, 4x with the BLTouch, 3x with the 3DTouch. Not sure commenting it is usefull !by yet-another-average-joe - Printing
Re: BLTOUCH - AutoHome Z will not stop - 1 year ago
Had a look to the bugfix : they renamed the constants (see *_ENDSTOP_HIT_STATE) and they now define the pin hit state HIGH or LOW, rather than the positive/negative logic. Makes sense as it reflects what can be read using a DMM, rather than the way the firmware interprets the pin state. On my printer, M119 also reports : Recv: z_probe: TRIGGERED Meaning your problem is not a inverted logic. #by yet-another-average-joe - Printing
Re: BLTOUCH - AutoHome Z will not stop - 1 year ago
Last stable, line 1123 :by yet-another-average-joe - Printing
Re: BLTOUCH - AutoHome Z will not stop - 1 year ago
I'm on last version of stable release. (e7c4a86, january 2023) Z_MIN_PROBE_ENDSTOP_INVERTING is line 1123 made a mistake. It's set with true/false, false = default. I'll have to wait a few hours before I can see how my printer behaves because it is currently printing... Didn't really touch the BLTouch settings for the last 5 years, copying/pasting settings over and over from version to the nexby yet-another-average-joe - Printing
Re: BLTOUCH - AutoHome Z will not stop - 1 year ago
You didn't uncomment USE_PROBE_FOR_Z_HOMING ! ("Force the use of the probe for Z-axis homing") Also, Z_MIN_PROBE_ENDSTOP_INVERTING should be uncommentedby yet-another-average-joe - Printing
Re: VFA (vertical fine artefacts) - 1 year ago
Currently printing a new version of the print head... Removed 8 mm overhang for the nozzle, relative to the X extrusion. Just for now, with the 1st printhead iteration and bolts properly tightened, the quality is astounding. Easy to compare : I'm reprinting some of the Stealthburner parts I printed with the V6 Bowden a couple months back, with the same Cura profiles (same very conservative, quaby yet-another-average-joe - Printing
Re: best post processing method to get smooth prints - 1 year ago
Sand blasting ? The downside is the need for the equipment, and most of all a powerfull compressor. 5+ HP or it will take ages. Seems to me PCBWay, JLCPCB and other do it this way. Could a tumbler do it ? For PLA, chlorinated solvents work the same way acetone works for ABS. But not easy to source.by yet-another-average-joe - General
Re: VFA (vertical fine artefacts) - 1 year ago
STUTID ME !!!!! At high speeds, the head was *really* acting as a wood pecker. Just forgot to properly tighten the bolt that holds the X czriage lower wheel after adjusting it : the eccentric was nearly turning free. Shaking the head while printing was making it turn... This explains why quality was degrading while reducing speed on the first test. Lost hours designing a new X cariage. VFAby yet-another-average-joe - Printing
Re: VFA (vertical fine artefacts) - 1 year ago
The belt is certainly part of the problem. But still redesigning the X carriage based on a modded Stealthburner. Also, could be a bit picky. While drawing, tested a sub 30 mn (28 mn) benchy (Cura, 200 mm/s, 2000 mm/s², 20 mm/s everywhere - walls and infill - no pressure advance, no input shaping, PETG, massively underextruded of course : peek flow > 20 mm²/s with a genuine E3D V6 and a 40W heby yet-another-average-joe - Printing
Re: VFA (vertical fine artefacts) - 1 year ago
Yep ! But I think that before I see this on my prints, I'll have to improve my crappy design !!! I think the toolhead is a jackhammer. Along the X axis : Along the Y axis : The toolhead has a huge overhang ; on the left, le current design I'm printing with, on the right : the new one I'm working on ; difference = 8.3 mm ; redesiging a larger the motor plate so it is bolted to the cariageby yet-another-average-joe - Printing
Re: VFA (vertical fine artefacts) - 1 year ago
Oh, forgot to say... There's a flaw in the design. The printing head itself. It is too far from the X extrusion : I designed and printed an adapter for the Stealthburner, and there's a huge overhang. As a result, even if it feels rigid, I suspect it is doing some headbanging (what else could do a full metalhead ?). Have to design the adapter as a single part with the extruder back plate fully intby yet-another-average-joe - Printing
Re: VFA (vertical fine artefacts) - 1 year ago
Oh yes, the motors springyness : MRR ! Didn't think of that. Just found this page : I don't think the motors are the only culprit, because the problem showed a lot more after rigidifying the printer (not Z-banding or wobbling, I straightened the leadscrews using a press and a surface plate, they are mounted with respect of isostatism, belt driven, on preloaded bearings pairs, hanging from top,by yet-another-average-joe - Printing
VFA (vertical fine artefacts) - 1 year ago
Hi, I'm finalizing a bed slinger I built reusing a Tevo Tornado (bed slinger, CR10 knockoff) : I reused the frame and the bed, threw away most of the sheet metal parts, machined everything I could from 6 mm aluminium and more, reinforced everything, and replaced the BMG + V6 Bowden I've been using for years with a Stealthburner. It's built like a tank. And now I have VFA on all walls. Pitch 2 mm.by yet-another-average-joe - Printing
Re: Building a CoreXY : machined or printed parts ? - 1 year ago
Machining everything that can be machined was the best advice ever ! Currently printing at 100 mm/s with the same results I had with 40 mm/s. Still some issues to be solved, but currently prototyping at light speed ! Now understanding the VZ Bot initiative. Just with the lowest end printer that can be imagined (CR10/Tornado, the ancestor most youtubers forgot about, always refering to the Ender 3by yet-another-average-joe - Mechanics
Re: rotary encoder - 1 year ago
Maybe ENCODER_NOISE_FILTER is the parameter you need to alter. (Configuration.h)by yet-another-average-joe - General
Re: Building a CoreXY : machined or printed parts ? - 1 year ago
Very first test today, but the printer is not 100% funtionnal. A 65 mm wide cylinder, vase mode, 80mm/s, 0.2mm layer height, cheap PET (*not* PETG). The Stealthburner was built with elements from a 3+ years old TriangleLabs BMG knockoff, that has been working 1000s hours. The motor is a Mooms NEMA14 ; the Z motor is a cheap dual axis ACT MOTOR. Lightings from top. Looks good to me. No visible patby yet-another-average-joe - Mechanics
Re: Building a CoreXY : machined or printed parts ? - 1 year ago
Thanks ! Wanted to make this project whith off the shelf and recycled parts only, but had to buy 40T pulleys ! 36T pulleys I had, driven with a 20T one, would have been a nightmare at for magic layer heights. To do : - the X carriage is not rigid enough ; even worse with the Stealthburner (added weight, added overhang) ; have to make a reinforcement backplate similar to the one added to the Yby yet-another-average-joe - Mechanics