Please read the instructions that come with your HobbyCNC controller/motor kit very carefully. Here are a couple of gotchas that we found through trial and error:

  1. Watch your jumper settings, especially when setting Vref. These must match the software settings in EMC2.
  2. Install a bleed resistor on the big capacitor, and do not touch any part of the electrical system unless this cap is fully discharged.
  3. Install a power LED/1k resistor (not included) between 5V pad and ground on your board. This also shows you the status of the big cap.
  4. Use consistent motor wire coloring.
  5. Do not plug/unplug wires until the system has been powered down for a couple of minutes.
  6. Take the time to build a case. Good airflow for cooling is critical.
  7. The included power switch is meant for much smaller wires. Purchase a beefier one and throw the stock part out
  8. Solder all three drive chips to the board, then hold up the heat sink to mark all 6 drill holes at once. If you lay these out with a square beforehand you’ll never get the alignment right.

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Revised 4 years ago
<p>Please read the instructions that come with your HobbyCNC controller/motor kit very carefully. Here are a couple of gotchas that we found through trial and error:</p> <ol> <li>Watch your jumper settings, especially when setting Vref.</li>Vref. These must match the software settings in EMC2.</li> <li>Install a bleed resistor on the big capacitor, and do not touch any part of the electrical system unless this cap is fully discharged.</li> <li>Install a power LEDLED/1k resistor (not included) on thebetween 5V pad ofand ground on your board.</li>board. This also shows you the status of the big cap.</li> <li>Use consistent motor wire coloring.</li> <li>Do not plug/unplug wires until the system has been powered down for a couple of minutes.</li> <li>Take the time to build a case. Good airflow for cooling is critical.</li> <li>The included power switch is meant for much smaller wires. Purchase a beefier one and throw the stock part out</li> <li>Solder all three drive chips to the board, then hold up the heat sink to mark all 6 mount holes at once. If you lay these out with a square beforehand you'll never get the alignment right.</li> </ol>

Revised 4 years ago
<p>Please read the instructions that come with your HobbyCNC controller/motor kit very carefully. Here are a couple of gotchas that we found through trial and error:</p> <ol> <li>Watch your jumper settings, especially when setting Vref.</li> <li>Install a bleed resistor on transformer,the big capacitor, and do not touch unless fully discharged.</li> <li>Install a power LED (not included) on the 5V pad of your board.</li> <li>Use consistent motor wire coloring.</li> <li>Do not plug/unplug wires until the system has been powered down for a couple of minutes.</li> <li>Take the time to build a case. Good airflow for cooling is critical.</li> <li>The included power switch is meant for much smaller wires. Purchase a beefier one and throw the stock part out</li> </ol>

Revised 4 years ago
tba<p>Please read the instructions that come with your HobbyCNC controller/motor kit very carefully. Here are a couple of gotchas that we found through trial and error:</p> <ol> <li>Watch your jumper settings, especially when setting Vref.</li> <li>Install bleed resistor on transformer, and do not touch unless fully discharged.</li> <li>Use consistent motor wire coloring.</li> </ol>

Revised 4 years ago
tba

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