Search found 503 matches

by dragonator
Sat May 22, 2021 5:05 pm
Forum: 3DP printing
Topic: Grain micro powder printer
Replies: 5
Views: 6218

Re: Grain micro powder printer

I did have the machine running. I would have to dig around to find video's. It did give me a lot of good new features on the inkjet side, but Grain itself was a bit of a disaster. Pistons constantly jammed and the machine ran poorly. I still like the concept, but I would make a V2 if I were serious....
by dragonator
Wed Apr 28, 2021 4:03 pm
Forum: I made a:
Topic: GlaDOS lamp
Replies: 17
Views: 32878

Re: GlaDOS lamp

https://ytec3d.com/downloads/

Cad files are here. Best of luck and please share your progress when you have it.
by dragonator
Thu Apr 15, 2021 5:25 pm
Forum: 3DP printing
Topic: Standalone controller V4.0
Replies: 11
Views: 5638

Re: Standalone controller V4.0

Printing quality is better than the last shown images. In the images the encoder was not calibrated. Printing quality is the same as with any other printer. SPI is not yet implemented. I still do not have that much experience with SPI, so any protocol I would write would be written with no eye on ac...
by dragonator
Fri Mar 19, 2021 5:04 pm
Forum: I made a:
Topic: GlaDOS lamp
Replies: 17
Views: 32878

Re: GlaDOS lamp

Cool to hear you giving the Glados a try. I did say the 100-200h time. Nowadays it might be less, it was 6 years ago. I think I printed at something like 3 perimeters, 20% infill and 0.2mm layer heights. This is what I would do these days at least. Some parts do have challenging supports. Something ...
by dragonator
Sun Mar 14, 2021 10:19 am
Forum: 3DP printing
Topic: Standalone controller V4.0
Replies: 11
Views: 5638

Re: Standalone controller V4.0

Commissioning the controller took way longer than expected. I had a few problems. Wrong trace.jpg PXL_20210314_100448831.jpg The first is that some unknown person decided that one trace did not need to be connected. It was easily fixed, but it does already mean that my prototype boards will need an ...
by dragonator
Sun Feb 28, 2021 10:27 am
Forum: 3DP printing
Topic: Standalone controller V4.0
Replies: 11
Views: 5638

Re: Standalone controller V4.0

I now have an assembled V4.00 board. The boards arrived yesterday and I couldn't help myself. Here are a few of the changes compared to V3.02. It is finally on a single PCB. The 2 boards were starting to give me a headache. It runs on a Teensy 3.5. This gives it more RAM, more pins, and an SD card s...
by dragonator
Mon Feb 22, 2021 11:27 am
Forum: Plan B
Topic: New layer gantry exceeds end stops
Replies: 3
Views: 3337

Re: New layer gantry exceeds end stops

Changing the kinematics will probably be the cause of the issues. This code is not really designed for easy kinematics changes. Step X and Step Y do not really handle the kinematics, they handle the movement and position of the motors for X and Y. This is why you do not see a compensation for the ac...
by dragonator
Sat Feb 20, 2021 11:22 am
Forum: Plan B
Topic: New layer gantry exceeds end stops
Replies: 3
Views: 3337

Re: New layer gantry exceeds end stops

The movement of the gantry out of the way is handled in the firmware, not in the Gcode. There is not really any data in the gcode which moves the gantry. You modified this firmware to handle a single feed piston? Can you either share what you changed or attach your current firmware? I can then take ...
by dragonator
Thu Feb 04, 2021 5:46 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 647
Views: 640112

Re: Hacking the HP45

I have put the UDN2987 on my list of considerations. It has a latch, can handle the voltages and does seem to be (barely) fast enough. The discontinued status and max 1000ns response time do worry me a bit though. Once I am certain that the TLC59213 is indeed the bottleneck I will see if this chip i...
by dragonator
Thu Feb 04, 2021 5:44 pm
Forum: 3DP printing
Topic: Standalone controller V4.0
Replies: 11
Views: 5638

Re: Standalone controller V4.0

I have ordered a batch of PCB's with the V4.0 prototype design. The breadboard gave me erratic readings so any result I would not have trusted much. On the PCB I at least hope to have stable results, though making alterations will be a bit more challenging. L6452 is indeed a nice chip, but I find th...