User Tool-Changer Tool Designs.

Discussion in 'Tool heads & ToolChanger' started by Greg Holloway, Mar 23, 2020.

  1. dc42

    dc42 Well-Known Member

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    You are right, there is a limit of 10 tracked objects. I've added this to the limits section of the object model for firmware 3.01-RC7 and I've increased to to 30 on Duet 3.
     
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  2. garethky

    garethky Well-Known Member

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    I'd like to submit mine but it needs 1 or 2 more iterations and some proper documentation.

    Printing PPE Face Shields has the down side of tying up both of my printers. The upside is having a reason to run 5Kg of filament through the tool head as fast as possible and basically test it to failure. I've worn out 2 tool heads so far and made design changes fix the durability problems. Currently torture testing #3 with the most critical idler design changes included. Give me time to run another 2 roles of filament before its golden.
     
  3. Marcus Mendenhall

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    I've run 8 rolls of filament through my Hemera doing the same thing. Running 18 hours/day, printing a frame every 90 minutes. I got lucky and got one of the Hemeras that apparently did not have cracked gearing. I'm driving it hard, and it seems to be doing fine, so far. Peaking out feeding 5 mm/s of PETG through it on the fast moves (using an 0.4 mm nozzle).
     
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  4. ryan mckenna

    ryan mckenna Member

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    Hi Greg, I am converting my Tronxy X5S to a tool changer. My first goal was mounting the tool plate and docking bracket. Do I want them perfectly level with each other when I go to dock or one slightly higher than the other. Are there any other nuances that you've figured out on anything else.
     
  5. Greg Holloway

    Greg Holloway Administrator
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    Perfectly aligned.

    Watch out for tool 'droop' where it looks like it is not aligned or too low. Its because we have to have clearance in the receiver for the docks pins and the tool slouches. The fix is to put a bump on the tool as low as possible that keeps it perpendicular when docked, on our motion system the bump rests against the electronics panel. it will make tool pick-ups and drop-offs waaay more reliable. If you have a light tool like the V6 bowden, you'll likely get away without one.
     
  6. Frostie2k

    Frostie2k Member

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    Direct drive Mosquito Tool ready for test

    min.JPG min_1.JPG min_3.JPG
     
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  7. Nibbels

    Nibbels Well-Known Member

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    Thanks to @dc42 and @Spoon Unit s help fixing my layer problem I can now focus on printing and the printer again :)

    About the threads purpose: This is my list of modifications I did.

    The TitanAero tool.
    I insert a link to more of my pictures:
    This is my 3mm/1.75mm TitanAero tool design: https://www.thingiverse.com/thing:4190989
    Within the thread: 3mm / wiring forces and toolchanger docking challenge
    large_display_Screenshot_7.jpg


    That is my top mount spool holder. I used long threaded rods and counterfixed them into the TC.
    Atop I use a 12mm tube and spool dividors which divide the carriages into their own sections. Otherwise they interact and make a mess.
    Screenshot_3.jpg
    Screenshot_8.jpg



    This is the ooze blocker: unsharpened and bent razor blades:
    3mm / wiring forces and toolchanger docking challenge
    (Which is not 100% perfect without a good wiper but works pretty good)
    Screenshot_6.jpg



    And finally the "stiffness" improvement which makes the Toolchangers frame really stiff:
    Screenshot_7.jpg
    I had to rule out any influence of insufficient stiffness because of the layer height problems I had. I dont use the original side panels so far. They are untouched and not cracked.
    The cracking-sides-thread made me think about first finishing the printer and afterwards closing it. Not the other way around.
     
  8. garethky

    garethky Well-Known Member

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  9. Nibbels

    Nibbels Well-Known Member

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    Adding this nice documentation and all the instructions makes it perfect. Thank you!!!
     
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  10. Greg Holloway

    Greg Holloway Administrator
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  11. Beat

    Beat Active Member

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  12. Jason Chodakowski

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    Getting closer to reality. Mandala Rose Works is cutting this and will also stock a few in case someone needs one. Not sure when, but 'soon' (tm)
    unknown.png
     
  13. Doug Ronaghan

    Doug Ronaghan Member

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    Thank you very very much
     
  14. Nicholasav

    Nicholasav Member

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    I'm working on a pellet extruder tool to produce a fluid transfer connector. It's still early days, but the plan is to use subtractive to ream the ID for a smooth, concentric finish. The value of pellets are in using the exact resin grades used in our medical grade applications -- in this case, as representative of molded as possible, without making any type of tooling. For now, the hopper and extruder pieces were printed from PP and Nylon, respectively. The tool mounts were printed in Formlabs Tough resin. The weight does not appear to be an issue (yet), but I won't know for sure until I properly begin the commissioning process tomorrow. Everything pictured is still very much V1. Long term plans include adding another docking connector to eliminate sag, a pellet feeder with drying, and better part cooling.

    I'd appreciate any feedback!
     

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