Chain mount compatible with rail support

New Home Forum Mostly Printed CNC – MPCNC Advice – MPCNC Chain mount compatible with rail support

This topic contains 7 replies, has 4 voices, and was last updated by  Barry 1 week, 2 days ago.

Viewing 8 posts - 1 through 8 (of 8 total)
  • Author
    Posts
  • #109235

    Michael Yeomans
    Participant

    Hello again everyone,

    I want to add rail supports to help with stiffness but they would interfere with my cable chains as they are directly underneath the rails. Has anyone seen on thingiverse a mount that places the cable chain just slightly to the side of the rails?

     

    Much appreciated,

    Michael

    #109238

    Ryan
    Keymaster

    Use the tape measure trick and mount the wires above the rail. Low friction and doesn’t collect debris.

    #109366

    Michael Yeomans
    Participant

    I will keep that in mind for the future. I don’t want to reroute everything just yet. Annoying activity that.

    I get the feeling from some past replies that you are not a big fan of cable chains?

    #109367

    Barry
    Participant

    They can add too much tension to the Z assembly.

    1 user thanked author for this post.
    #109533

    Ryan
    Keymaster

    I have a warning against them in the instructions. There are a handful of recent threads around here with peoples really poor tolerances all due to cable chains.

    #109535

    Clay
    Participant

    I have mine mounted to the gantry, which from what I can gather should be ok? Should I remove it?

    I was looking for a dust shoe that also mounted to the gantry but didn’t really find any that I liked. Decided to try and design my own but my zero previous experience with fusion is making it take longer than it needs to.

    #109655

    Ryan
    Keymaster

    That extender is basically the same as the Z axis (same height=same lever arm), it is better (not directly touching the Z axis) but still far from ideal.

    Bottom line is, if the accuracy is good enough for you, no need to change anything.

    1 user thanked author for this post.
    #109725

    Barry
    Participant

    https://www.thingiverse.com/thing:3420239

    Gantry mounted dust shoe.  I have it printed, but not installed yet.  I’ve either been really busy with work, or working on my new 3d printer, so not as much shop time.

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