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  1. L

    3020 China mill ?s and issues.

    I am sorry to know that nothing work and I agree that this is not fun at all. When you say grbl, are you talking about GrblPanel, the parser? I can tell you that, when all is working well with a machine, you can use different software (parser) with almost the same results. I tried five or six of...
  2. L

    3020 China mill ?s and issues.

    You are welcome Andy. GCode is universal so there is not very special treatment in grbl. It use Linux CNC as a reference. You can find more info here: https://github.com/gnea/grbl/wiki/Grbl-v1.1-Commands and here: http://linuxcnc.org/docs/html/gcode.html
  3. L

    3020 China mill ?s and issues.

    Hi Andy, G0 is a command for rapid movement. It will position all axes on the shortest path at the faster speed. The faster speed is set with the $110, $111 and $112 parameters. Using the G1 command you will be able to modify the speed rate including the F command in the instruction line (G1 X20...
  4. L

    3020 China mill ?s and issues.

    Well, all your axis has the same pitch so you should set the parameters as follow: $100 = 800.000 (X-axis travel resolution, step/mm) $101 = 800.000 (Y-axis travel resolution, step/mm) $102 = 800.000 (Z-axis travel resolution, step/mm) Regarding the speed rate and acceleration I would...
  5. L

    3020 China mill ?s and issues.

    Sir, I can understand your frustration very well and please, do not worry for your post. I do not feel offended at all. Unfortunately I live in Argentina what would be around 15,000 km or so way far of your neighborhood. I would have loved to be closer to give you a visit and help you to solve...
  6. L

    3020 China mill ?s and issues.

    Naiveambition. the setting of a machine like this is quite simple but we need to know the correct mechanical specs. Again, if your stepper motor is 200 steps/rev. and you have the driver set at 8 micro steps and you have a displacement (pitch) of 2 mm per rev. you should set the $100 and $101...
  7. L

    3020 China mill ?s and issues.

    To be sure of the pitch of your lead screws I would take a reference point and then move the axis (motor) by hand one revolution, then take a measure to know exactly what was the displacement. If your stepper motor is 200 steps/rev. and you have the driver set at 8 micro steps and you have a...
  8. L

    3020 China mill ?s and issues.

    I suggested you to try Grbl Panel. This software is wrote in C++ and is very good and run flawlessly. You can find the link in the post #13 of this thread. I would like that you give it a try because I am almost sure that this will contribute to the solution of all the Java problems. No Java at...
  9. L

    3020 China mill ?s and issues.

    I am almost sure that your problem is in the grbl configuration. Has your machine limit switches? Are they set ON in your configuration file? What happen with the soft limits? Are they set ON too? Again, sending a $$ comand to the board will tell you all the status. You can read all the info...
  10. L

    3020 China mill ?s and issues.

    Hi Naiveambition, I can understand your frustration very well and would like to help you more closely although I do not know the woodpecker board. As the saying goes in Spanish "cada maestrillo tiene su librillo" what would be translated to something like "every master has his own trick"... :)...
  11. L

    CNC controller

    That's great Don! Please, tell as how it works. I am sure it will serve you very well.
  12. L

    CNC controller

    You are welcome John. If you want to use this board but placing the 4N26 you have, you will need to change the tracking a little bit but them will work. Just take care of the polarity of the 4N26's transistor output. Leonardo.
  13. L

    CNC controller

    Hi John, you are right. The TB6600 driver has optically isolate inputs so, in this case you could save these optocouplers. When I did this board I thought that it would be better to isolate all the inputs and outputs. In this way that it will be possible to use any driver or input signals coming...
  14. L

    CNC controller

    I forgot to mention that the board is a single layer and you need a 0.2/0.25 mm 30º conical cutter to make your board using the DWG file I uploaded. Finally I must say that this board design is shared as is and it is at your own risk to decide to use it. I also will not give support to this...
  15. L

    CNC controller

    Hi Don and all! I decided to share my controller board to help the people interesting in using Arduino and GRBL to control your CNC machines. I developed this board because I do not like the CNC shield commercially available for the Arduino UNO. My board has all input and output isolated with...
  16. L

    CNC controller

    Don, it took me some days to have the time to make these test but here you are: I did two jobs. The first one with tabs in both profiles and the second with engage ramps. I did nothing special just post processing the sketch using Aspire software. The machine performed the jobs perfectly. As you...
  17. L

    CNC controller

    Hi Don, thank you! The travels are as follow: X = 350 mm, Y = 250 mm, Z = 100 mm. Aluminum cast structure. Unfortunately I am not very good at G coding, far from that. I always use CAM software so I let it deal with that "details". :) G2 and G3 might be more important working in 2D and 2.5 D...
  18. L

    CNC controller

    By the way, I remembered that I have this controller in my to-do list but I did not tried it yet. It looks very interesting because you have all you need in a handy enclosure and you can add a pendant too. Take a look at it: https://www.ebay.es/i/352592397929?ul_noapp=true There are options for...
  19. L

    CNC controller

    Hi all! Just would like to share with you my experiences. I am producing a desktop but quite robust CNC milling machine based on the structure of a previous development. For this project I am using an Arduino UNO R3 board with GRBL V1.1 embeded firmware. I have mounted the Arduino on my own I/O...
  20. L

    Pseudo Stirling Engine (Thermoacoustic cycle)

    This is my version of a Thermoacoustic cycle engine. My original idea was to make a Stirling engine but ended up in this, more simple one. This is my first and only attempt to the hobby until today. I made the cooler in aluminium and the cylinder in brass with a graphite piston. Also use 3mm...
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