IN DEVELOPMENT Zesty Dual Nimble with Chimera

Discussion in 'Guides, Mods, and Upgrades' started by Stian Indal Haugseth, Aug 17, 2017.

  1. Stian Indal Haugseth

    Stian Indal Haugseth Well-Known Member

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    Seing all the IDEX mods and builds and Nimble stuff I was sorely tempted. But I wanted something simpler.

    Goal:
    1. Full print volume. Bonus if I can extend the bed later and manybe achieve 225 x 325 mm.
    2. Lighter X carriage
    3. Simple mechanics
    4. Use stock spacing of X rods (I have Chases Dual Titan mod with a wider stance at the moment)
    First version will use as many stock parts as possible. As the fans and blowers.

    One caveat is that I have to replace the X motor idler because I am not able to find a suitable location for the X endstop. Since I have Chases mod I will also make a new X motor mount where I do not have to dismantle the printer to swap out.

    BOM (so far)
    New printed parts
    • X carriage base, testing a click on mount for the base. So no clamps needed for the bearings.
    • Fan shroud for print cooling

    So far it looks like I'll be able to just have a 45mm wide carriage. Just as wide as the bearings.

    This is an early render. I have done some changes since this:
    ZestyDualChimera stock v2 v7.png
     
    #1 Stian Indal Haugseth, Aug 17, 2017
    Last edited: Aug 17, 2017
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  2. Stian Indal Haugseth

    Stian Indal Haugseth Well-Known Member

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    It's a bit tight between the fan shroud and the heat blocks. I might have to add a few millimeters between them.
    IMG_20170817_131521.jpg

    Here you can see the two small holes for the endstop and a M3 screw should fit on the X idler
    IMG_20170817_131653.jpg

    Click on mount
    IMG_20170817_131756.jpg
     

    Attached Files:

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  3. Stian Indal Haugseth

    Stian Indal Haugseth Well-Known Member

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    Getting closer. Not much time to spend on this these days. I'm getting very close to start implementing the modification.

    Top of new carriage with connector bracket on the back. I uesd the dual hybrid as a template for the belt grooves and fastenings.
    IMG_20170831_153803.jpg

    Connector bracket for all wiring not going to the hot end.
    IMG_20170831_153912.jpg

    Incorporated slots for 4 pin MF 3.0 housings for hot end wiring. It should be easy to swap out the complete hot end / heat break assembly for quick nozzle changes. Not sure if this design holds up to use over time yet. I'm also printing with a 0.35mm nozzle and might be tricky to print parts with a wider one.
    IMG_20170831_154304.jpg

    You can compare the size of Chases dual Titan with single extruder attached.
    IMG_20170831_185910.jpg


    IMG_20170831_185950.jpg

    IMG_20170831_190032.jpg

    IMG_20170831_190048.jpg

    I have made a new X motor idler to maximise movement on X axis. I had to move the endstop switch to the side. I also made a kind of hinged bearing clamp that should be possible to dismantle without taking any acrylic parts off the BigBox for later maintenance.
    IMG_20170831_190110.jpg
     
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  4. Lykle

    Lykle Member

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    Looks like a very neat installation.
     

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