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    gmedlicott

    @gmedlicott

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    Latest posts made by gmedlicott

    • RE: Rough print finish and dimensional inaccuracy

      @TRATOON For smooth motion on the X and Y with our ExoSlide Ender 5 Plus kits (or any other setup) the goal is low friction on the slides, and decent belt tension. The ExoSlide carriages should all slide smoothly on the extrusions with the belts removed. The bearing treads should also all contact the extrusions (to prevent wobble), but not be overly preloaded as that increases friction. We have a guide install video on our website under Guides > ExoSlide Adjustment.

      Are you using a metal or printed mount for the Hemera? If using the metal mount, ensure the washers under the M3 bolt heads are used. It should be snugly mounted to the carriage face.

      Regarding the Z, the Ender 5 Plus can be over constrained at the ends of the travel where the Z rods don't flex. If you removed the Z lead screws, can the bed travel smoothly up and down by hand (especially near the top)?

      Regarding belts, as mentioned above, the XY belts should be tight but not crazy tight that brackets are bending. On the X, I tension the X idler bracket with one hand and secure the bolts with the other. On the Y, I use a small screwdriver or allen key to pry the front idler brackets forward and tighten the bolts with the other hand. One last note on the Y belts, ensure they are not twisted when then return in the extrusion.

      If all those steps check out, one troubleshooting step I would take is to reduce variables in the system, and temporarily install the factory hotend/bowen/extruder on to see if that cures it.

      posted in Tuning and tweaking
      gmedlicottundefined
      gmedlicott
    • RE: Duet 3 Mini 5+ : Initial announcement

      DC42/Tony: Can you post the hole mounting dimensions for the Duet 3 Mini 5+? Better yet, a STEP file of the board?! I'm working on an electrical box for the ExoSlide/ExoCube printer, and would like to be able to mount this new board once available.

      posted in General Discussion
      gmedlicottundefined
      gmedlicott
    • Using Stallguard with external driver TMC2130 on a Maestro

      Quick question, if external TCM2130 stepsticks are added to a Maestro (stepsticks on a breadboard) and configured for X & Y motion (on CoreXY), can the Maestro firmware use Stallguard / sensorless homing for these?

      The other 5 drivers would be used for Z (x3 or x4) and extruder.

      posted in General Discussion
      gmedlicottundefined
      gmedlicott
    • RE: Smart Effector on Corexy...

      Count me interested in one as well. I'll beta test like Doug! I'm OK with 70-80mm length as my carriage is 80mm long.

      posted in General Discussion
      gmedlicottundefined
      gmedlicott
    • RE: Smart Effector on Corexy...

      My first impression was, why? But now I'm thinking if DC42 designed a Core-XY optimized form factor version (smaller square say)...

      posted in General Discussion
      gmedlicottundefined
      gmedlicott
    • RE: Pressure advance input from instrument measurement

      Great info on nozzle pressure vs temperature and feed rate. So at 250'C you can feed almost 5x as fast as at 210'C for the same nozzle pressure (with your configuration of course)!

      On your dynamic graph, a correctly set pressure advance constant will shift the linear rising pressure slope, but won't cure the post-rise excess pressure overshoot I don't think. For that, a different algorithm would be needed.

      posted in Tuning and tweaking
      gmedlicottundefined
      gmedlicott