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4Instructables162,044Views30 CommentsQuebec, Canada
I'm an electrician, currently studying in electrical engineering. I'm doing those projects as a hobby. I like DIY projects and hacking stuffs :). Hope you enjoy my projects.

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  • Spiky1987 commented on Spiky1987's instructable DIY MDF CNC Machine 36x223 weeks ago
    DIY MDF CNC Machine 36x22

    I don't remember if I had any trick. I had the plans and I drew on the wood all my measurements. I was in metrics I think ( maybe more precise ? )The fit won't be 100% perfect since there's human manipulation. You will have to use your skills to tweak the parts a bit.For the upgrade, there's no plan. I just drilled holes in the side of the machine and fixed the ribs with floor screw. I needed something quick and strong. It really help the stability of the machine.

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  • Spiky1987 commented on Spiky1987's instructable DIY MDF CNC Machine 36x223 weeks ago
    DIY MDF CNC Machine 36x22

    If I had to do it again I would probably use servo motors, as they are in closed loop so they wont miss any step. With open loop motors like steppers, you have to watch your print and be ready to press the e-stop in case something bad happen ... or maybe I was just trying to cut too deep for each layer ... anyway .. The servo alternative is quite more expensive, I would say around 1200$ for the electronics. At that price you better buy a DIY already made CNCThe gecko driver are well engineered drives and they will allow the current the motor needs. It's been a while since I havent shopped for stepper drive for nema 23 ... I use smaller motors with my 3d printers.You need a drive that can handle 3 - 4 amps per axis if my memory is good.Unfortunatly I don't have time to make a complete sc...see more »If I had to do it again I would probably use servo motors, as they are in closed loop so they wont miss any step. With open loop motors like steppers, you have to watch your print and be ready to press the e-stop in case something bad happen ... or maybe I was just trying to cut too deep for each layer ... anyway .. The servo alternative is quite more expensive, I would say around 1200$ for the electronics. At that price you better buy a DIY already made CNCThe gecko driver are well engineered drives and they will allow the current the motor needs. It's been a while since I havent shopped for stepper drive for nema 23 ... I use smaller motors with my 3d printers.You need a drive that can handle 3 - 4 amps per axis if my memory is good.Unfortunatly I don't have time to make a complete schematic right now, you can take a look at http://www.geckodrive.com/images/cms_files/images/G540%20REV8%20Manual.pdfEven 3d printers schematics can help you. To drive a stepper you need 2 signals, 1 for the steps and 1 for the directionThe drive needs +Vcc ( 24 volts - 50 volts ) and a GroundMotors have 2 phases ( 4 wires ) and it's quite easy to get the info on their wiring.With the gecko drive, you need to supply a resistor to the drive, so the drive can "know" what's the maximum current your motor need.Good luck with your project. Let me know if you have any other questions, i'll do my best to give you an answer !

    Yes, there are 2 long rib underneath the bed and you need to fasten the bed to those parts.

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  • Spiky1987 commented on Spiky1987's instructable DIY MDF CNC Machine 36x221 month ago
    DIY MDF CNC Machine 36x22

    1/2 if I remember well

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  • Spiky1987 followed AddictiveMfg9 months ago
  • Wiring your Z stepper Motors in Series

    I had some limit switches laying around. I used the connector on them to make the asaptor. Glued on some epoxy to make a solid mechanical restrain and ... tadam ...I will try it tomorrow. Thanks a lot for the hack !!!

    Well thank you ! I knew that the torque is a function of the magnetic flux that os function of the frequency and the voltage for ac motors. I'm not used to stepper formula. Your answer is complete and seems pretty accurate. Thanks a lot for the explanation, I will try it this week when my driver board will be repaired !!

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  • Wiring your Z stepper Motors in Series

    How can the motor have the same torque if you apply half the voltage to it ? Putting both motors in series makes a voltage divider, yes you have the same current across the line but you have half the voltage ... it means less torque. And, augmenting the inductance will make the second motor having more trouble to get it's current due to the L di/dt formula. I have the same problem on my prusaI3, the "tok tok" of the z axis due to the autolevel feature.

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