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  1. #1
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    How to hook up a Bulldog extruder with Merlin Hot End?

    I just got myself a Bulldog with a merlin Hot End and a Reprap Prus A4988 Pololu + Heatsink Stepper Motor Driver Ramps For 3D Printer.

    How do i hook up these to my pc? Smoothieboard?

    (Seems like i could not post in other group yet...)

  2. #2
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    in short: DRV8825 is probably better than the A4988 - except if you will use it as a drop in replacement in a RAMPS or other similar controller. The gain is very small and it is a tedious task to configure...
    I went with the DRV8825 because i will not use it with Arduino style board. A PC can keep ut with 1/32 microstepping and i will try to get the most out of it. I will hook it up with Ethernet SmoothStepper + BOB + Mach3 PC Software. Read on here


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