author
1Instructables9,454Views13CommentsMadison, WIJoined April 22nd, 2009
I'm a technology tinkerer. I like electronics, 3d Printing, woodworking and arcades.

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  • Replace Monoprice Select Mini Controller With Arduino Mega & Ramps 1.4

    When I pulled apart the xbox connector there was an uneven set of wires (4 yellow 3 black) For the fist bank I paired 2 yellow and 2 black. For the other bank I paired 2 yellow and used one black. I just twisted them together and pushed them into the screw downs. I'm assuming that the 12v and ground are all on the same rails in the power supply. That might not be the case and I could be combining lines on different rails but I don't think it matters in for this setup.

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  • Replace Monoprice Select Mini Controller With Arduino Mega & Ramps 1.4

    I think maybe you are skipping steps because the stepper drivers aren't set right. I need to add a section on tuning the stepper drivers. The adjustable potentiometer on them is what sets the current to the stepper motors. The stepper drivers I got were set high and caused noisy steppers and missed steps. I took my multimeter and connected black to the ground on the power and the red I clipped it to a small metal screwdriver with alligator clips. Then with the motors engaged I used the screwdriver to dial the screw back until I had .6 V on the meter. This made them work a lot better. I settled on .6v by playing around and it may not be the best voltage/current for you. Do that and see if it works a little better.However it may be that your stepper drivers are jumpered different. Did you...

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    I think maybe you are skipping steps because the stepper drivers aren't set right. I need to add a section on tuning the stepper drivers. The adjustable potentiometer on them is what sets the current to the stepper motors. The stepper drivers I got were set high and caused noisy steppers and missed steps. I took my multimeter and connected black to the ground on the power and the red I clipped it to a small metal screwdriver with alligator clips. Then with the motors engaged I used the screwdriver to dial the screw back until I had .6 V on the meter. This made them work a lot better. I settled on .6v by playing around and it may not be the best voltage/current for you. Do that and see if it works a little better.However it may be that your stepper drivers are jumpered different. Did you double check the settings by searching for the manufactures info? Or you could put all the jumpers in on one driver and see if it fixes the issue.

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  • Replace Monoprice Select Mini Controller With Arduino Mega & Ramps 1.4

    I'm not sure what you are looking for but I only replaced the LCD/Knob face with the 3d printed case and the Ramps compatible LCD.

    This contains the 4 models that I used to replace the LCD. http://www.thingiverse.com/thing:2133588I'm not sure what you are looking for?

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  • Replace Monoprice Select Mini Controller With Arduino Mega & Ramps 1.4

    For me I plugged everything in and it worked. The Arduino/Ramps setup is the cheapest controller out there and the clones aren't always the best build quality. It's hard to tell if I got a decent board and you got a lemon or what. If you can initiate a return with Amazon you might want to try that. If there was some internal issue that allowed power to the wrong componenet's it's the boards fault. However if the ramps pins weren't pushed into the arduino correctly, or the 12v power supply to the Ramps was reversed, you'll potentially fry the replacement. It's a real bummer that it didn't just work once you wired it up. Feel free to post any pics and maybe something will stand out.

    I'm surprised the colors don't match since they almost seem universal on stepper motors that I've seen. That said, just plug that same plug on the stepper motor into the header next to the stepper driver. Once you have everything setup manually move the extruder to the middle and then you can use Pronterface to move it left or right and make sure it goes the right way. If it doesn't you can either reverse the way you plugged it in or you can invert the direction in the code for Marlin and re-upload it to the Arduino.

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  • Replace Monoprice Select Mini Controller With Arduino Mega & Ramps 1.4

    It all depends on the stepper drivers you used. You'll have to Google around to find out

    The stepper drivers have a potentiometer on them that controls the voltage through them. I had to turn mine way down to get them to work well. There are a bunch of YouTube videos that show how to adjust them that you should check out. Essentially you use a multimeter to measure the voltage at that pot and turn down the current of the driver. Your current on the extruder is too high and won't work until you tune it.

    I'm guessing your other stepper drivers are skipping too. Try setting them all to the same voltage that worked on the extduder

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  • Replace Monoprice Select Mini Controller With Arduino Mega & Ramps 1.4

    Yes. You could easily cut the connector off of the power connector that was feeding the original controller and feed that into the +/- of the Ramps board. The power connection closest to the edge is used to power the steppers and the hotend and the other one is used to heat the bed. Just make a short wire that connects the two together and you can run everything on the same power supply.

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  • Replace Monoprice Select Mini Controller With Arduino Mega & Ramps 1.4

    In the kit you have there is a full sized SDCard read on the back of the LCD. All you have to do is uncomment one line in Marlin Configuration.h to enable it. #define SDSUPPORTIt sucks that your controller stopped working but doing this instructable should give you a much better understanding of how it all works. Good luck with your repair.

    That kit you bought should work fine. Even if the LCD was slightly different Marlin should have a configuration for it. I added a final page to the Instructable on the last few tweaks I've made and added some before and after pics on for using that very same mount. It looks pretty good now (at least to me it does).

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  • Replace Monoprice Select Mini Controller With Arduino Mega & Ramps 1.4

    Sure, it's not exactly complete. Let me know if I can add more.

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