Got slightly carried away with my Prusa upgrade…



  • Got slightly carried away with my Prusa upgrade…
    Original plan was JUST to replace the Y carriage with V-slot as I was unhappy with the 3 bearing carriage...
    Then I decided to upgrade the X axis while I was at it...
    It evolved into this before it made anywhere near the old frame.

    https://drive.google.com/file/d/1-9zJdgDchXq9YLzAys-K7I9OlyfDJ-ikGg/view?usp=sharing

    Early impressions, great quality, silent mechanical motion. Very happy so far.



  • Looks good. I'm a huge fan of V slot\Delrin wheels and many people have commented how quite my machine is so I can understand why you would be happy.



  • Looks lovely; needs a sign that says 'Prusa' because otherwise nobody would ever know… 😉 Is the lack of orange deliberate?

    The X drive looks interesting, is the idea that its Stepper couterbalances the weight of the extruder on the rail?



  • Looks nice, why mount the extruder 90 degrees to the carriage when it can be mounted using the motor bolts saving all that bracket from having to be there.



  • Your Y axis belt is not parallel to itself. This will cause the belt to become tighter as you move towards the Y min/max. Worst case scenario this will cause missed steps, but best case is that it still causes ringing and banding in the print



  • @EasyTarget:

    The X drive looks interesting, is the idea that its Stepper couterbalances the weight of the extruder on the rail?

    Partly - It also saves space as the side



  • @GeckoBox3D:

    Your Y axis belt is not parallel to itself. This will cause the belt to become tighter as you move towards the Y min/max. Worst case scenario this will cause missed steps, but best case is that it still causes ringing and banding in the print

    Well spotted, I've now got a spacer to "level" the belt on the Y axis



  • @DjDemonD:

    Looks nice, why mount the extruder 90 degrees to the carriage when it can be mounted using the motor bolts saving all that bracket from having to be there.

    Thanks, I've used a mount so I can swap extruders by unscrewing two bolts. I suppose I could still do this with a flat mount to save plastic. But it does extend further from the mount in this direction [I'm currently using a standard NEMA17 motor] (Not that this really matters as I've got spare room on my Y axis atm)

    I was going to add a Piezo sensor between the mount and the v-slot plate, but I've not got round to that mod yet

    Oh and BTW I'm currently making a remix of you mini delta…



  • Please do as far as I know its the only one of its species, several people have said they are making one but no one has yet documented it.

    I was thinking with your carriage you could almost make the part projecting out perpendicular to the x carriage into a hinge with the piezo mounted at the top of the hinge.


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