Creatr Leapfrog – Converted to DuetWifi



  • Creatr Leapfrog – Converted to DuetWifi

    Hi All,
    I‘m Nikos from Greece and in this thread, I’ll try to convert an old Creatr Leapfrog 3d Printer to a super printing machine using DUET electronics.
    This printer was the very first Creatr model, with a single extruder and an Arduino Controller Board Ramp connected with 4 external Microstep Driver CW230 motor drivers.
    467bbbd7-4184-422f-a79a-1aed7b020c86-image.png
    I want to keep only the chassis (with very little changes), the motors, and the power supply, and I’ll change all the cables, the electronics parts, and the extruder. (Some of the old electronics are burned and the printer was out of functions for many years)
    This will be a long time project because I don’t have all the necessary parts that I need.
    Any suggestion and advice is welcome. The board I’m going to use is the Duet 2 Wifi in conjunction wit a PanelDue v2 with a 7" screen
    Here is the situation of the printer now:
    579f285f-01db-4029-827c-f8515a0bdebd-image.png
    The existing electronic part is also a mess:
    9ce6e529-ad14-41d0-a453-7b5de201961d-image.png
    Please Keep tunned to see the progress of this project and help in order to create a guide for all the other people like me that have an old Creatr Leapfrog



  • @gianakop

    Let’s see what kind of electronics I have to deal with DUET Wi-Fi board....

    The motors:
    The printer has 5 stepper motors:
    X-axis: (1pcs) Smart Automation PN.SM42HT47-1684A
    Y-axis 😞 2pcs) Smart Automation PN.SM42HT47-1684A
    E-extruder: (1pcs) Smart Automation PN.SM42HT47-1684A
    All these 4 motors are the same: SM42HT47-1684 nema 17 bipolar stepping motor 1.68A 4 leads 5kg.cm holding torque)
    And here is the motor and the datasheet:
    XYE-motor_chart.jpg
    The Z-axis motor, is a much bigger stepper motor:
    Z-axis: (1pcs) Smart Automation PN.SM57T56-2804A-6mm
    Z_motor.jpg
    I haven’t the datasheet for that motor, but I think that is very similar to this motor :
    Z_motor_similar1_chart.jpg

    According to the DUET guideline for the motorsI think that I can drive the X, Y and E motors directly with DUET Wi-fi board, but I’m not sure for the Z-motor.

    The options that I have to drive the motors are:

    1. Drive them directly from the Duet wifi board (I’m not sure if I can do that with the Z-motor because it seems that it has 2.8 A current)
    2. Use the Duet Expansion Breakout Board (I don’t know where to find it)
    3. Use the Stepper Motor Driver TB6600 (cheap from e-bay)
    4. Or keep the old external drivers (Microstep Driver CW230)
      5a73eac3-28c5-4128-8610-466bf85f38d3-image.png
      I would appreciate any suggestion …..

  • administrators

    @gianakop said in Creatr Leapfrog – Converted to DuetWifi:

    Drive them directly from the Duet wifi board (I’m not sure if I can do that with the Z-motor because it seems that it has 2.8 A current)

    its normally recommended to drive motors at about 80% of their rated current (at rated current they can have 80C temperature rise depending on the motor!)

    So if the motor is rated to 2.8A then you can use a Duet 2 set to 2.2A



  • Some other parts of the printer that I’m going to keep before the restoration are:

    1. The powersuply, that is a : S-400-24 24V POWER SUPLY
    2. The bed that is the : Heated Print Bed (Leapfrog HS) ( thermo glass bed with dimensions 34.6cm X 45cm and powered with 24V
    3. The Z-probe : A JIMOU sensor 10-30V DC 150 mA https://bit.ly/32yzCS8
      644e77cb-c39c-4b5f-8272-272c540edd3d-image.png

    Last but not least I have to mention that Creatr is a Cartesian 3D printer in which the print bed moves only in the Z-axis using one stepper motor, X-axis and Y-axis are moving independently . X-axis uses one stepper motor and Y-axis uses two stepper motors. The extrusion system is direct with extruder and extrusion motor moving together.



  • @T3P3Tony said in Creatr Leapfrog – Converted to DuetWifi:

    So if the motor is rated to 2.8A then you can use a Duet 2 set to 2.2A

    Thank you @T3P3Tony , That 2.2A setup will be for all the motors? or I can make it only for the Z-motor and for the other X, Y i can use a different curent setup?



  • @gianakop said in Creatr Leapfrog – Converted to DuetWifi:

    That 2.2A setup will be for all the motors? or I can make it only for the Z-motor and for the other X, Y i can use a different curent setup?

    You can individually set the motor current for each driver that a motor is connected to (e.g. your Z-axis stepper would be 2.2A while your X stepper and two Y axis steppers would be some other value).



  • @gianakop

    https://duet3d.dozuki.com/Wiki/Gcode#Section_M906_Set_motor_currents

    The gcode command you would use in your config.g file would be M906 for setting the motor currents.


Log in to reply