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  1. timo_gross

    Help with Arduino idexer

    :) Maybe vk7krj can find his version and is willing to share it? What was done yesterday is maybe a little of a "bodge repair". I am not to proficient with that stuff, and I guess it might be not good enough. The zip is what we ended with yesterday. The known issue is that it requires a reset...
  2. timo_gross

    Preserve spare tools

    I bought one of those storage cabinets for camera equipment last year. I use it to keep some of the tools from rusting. The electric consumption is reasonable and they are not horribly expensive. I paid about 120 USD (I think). You can also get smaller or bigger ones. Just a plastic container...
  3. timo_gross

    Preserve spare tools

    Haha, brake them before they start rusting :cool: Seriously, I do not have that much of a problem with it. Carbide does not tend to rust so quickly. Do yours come in those small plastic tubes? Hard to keep things from rusting when humidity is very high. I should get an aircondition for your...
  4. timo_gross

    Help with Arduino idexer

    I would like to leave it at that for today :cool:, I think the remainder is not properly put back to zero by the keyboard actions for all scenarios. I hope you can proceed with what you were trying to do as is. Still I suggest you change the resolution a bit finer on the motor. (it will slow...
  5. timo_gross

    Help with Arduino idexer

    Hello, thank you for entering the discussion. That might make sense, just have to understand the concept a little better. Just started today looking into this code for the first time and trying to figure out a good way to handle division and remainder in a good way. Now Mike reports the "bodge...
  6. timo_gross

    Help with Arduino idexer

    One thing you might want to try for my 21 division version ist to change the i=0 to i=1 in the void rotation section. I think I made a mistake. The zero is doing one step. (that will damage the function for the even divisions. Just to check the correction once. Because I see now that it shows...
  7. timo_gross

    Help with Arduino idexer

    Mmh, I had some hope, but not to high hope. Usually some small detail or check is missed. Provided the numbers add up to be even. Like 800 steps. The thing should not move anything additional. Then I hope you are able to "get back to before". The thing is, the program is not "rounding", it is...
  8. timo_gross

    Help with Arduino idexer

    @Mike, can you try this? I cannot vouch for myself here, but it compiles and without testing it. I think it might do what I describe.
  9. timo_gross

    Help with Arduino idexer

    I tried with the Spread sheet program. If I snip off the end of the number, and add it to the next move. It would move. So at the end it would have moved 16000 exact.
  10. timo_gross

    Help with Arduino idexer

    Hello, now we got out of sequence. I tried to answer your question before it was posted :) We can try more practical approach. What does your stepper driver offer?
  11. timo_gross

    Help with Arduino idexer

    Yes and no! If you increase the resolution it will not round to 761 or 762 steps, but to the resulting number with the new resolution as I calculated in the given example. That is of course, because it was programmed that way as. It calculates the steps to move. Everything behind the decimal...
  12. timo_gross

    Model Engineering in the 21st Century

    I guess the machining stays. Due to the nature of processes. The powder for certain alloys is a fire hazzard and or toxic, so I doubt that these machines will become "affordable", maybe easy to obtain an obsolete one in a few years, but..., nothing you put in your home workshop. The complete...
  13. timo_gross

    Help with Arduino idexer

    Yes it is odd, but not the reason for the behaviour. The movement loop stops as posted above at 761 steps, of 761.9 steps, so 0.9*21 steps are missing at the end.
  14. timo_gross

    Help with Arduino idexer

    Hello Mike, What should we do? the program calculates 761.9047 steps to move. (but you can only make it move 762 steps or 761 steps) So the loop goes: i=1; if 1 is smaller than 761.9047 then step the motor one step further and increase i by one i=2, if 2 is smaller than 761.9047 step the...
  15. timo_gross

    Model Engineering in the 21st Century

    What I observe as a bystander. A lot of the hobbies separated more and more. There is a group, playing and buying "ready to play". Visiting a model shop today one can see a lot of "ready to run", "ready to fly" models. Bringing the remote control model to the "service checkup"? (I am guessing...
  16. timo_gross

    Gerry's Beam Engine Imperial Frame Drawings needed

    The plan by Julius de Waal, states http://www.john-tom.com/html/SteamPlans2.html as source. "Engine designed by Gerry Dykstra", but www.john-tom.com seems to be out of service.
  17. timo_gross

    Gerry's Beam Engine Imperial Frame Drawings needed

    Zip upload seems working, just exported dxf,
  18. timo_gross

    Gerry's Beam Engine Imperial Frame Drawings needed

    In fusion 360 the compete file can be "switched", I was using the files from Julius deWaal, and I think he changed dimensions in order to have more "even" numbers. Not exactly a drawing, it is the main sketch before "extruding". I just now switched it to inch, just to post it. I am not sure if...
  19. timo_gross

    What have you been doing today?

    How hard can it be? Table, Motor, Something to fix the blade :cool: .... ( I am scared of table saws :-) ) Stay safe. The smiley doe not answer his phone since few days.... I wonder what happened. Greeting Timo
  20. timo_gross

    Evaporative PLA Casting

    It says it the material is 80% the density of usual PLA. Did you try the method with normal PLA too? Did it make a huge impact?
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