BL-Touch mount

I have now completed the development and testing of my solution for a BL-Touch mount. I looked at other designs available and all seemed to have problems

  • Impeded fan air flow
  • Poor fixing integrity
  • Significant cantilever 


I believe that I have addressed each of these shortcomings. My solution was to mount the Touch to the rear of the carriage, so it also reduces the moment on the already loaded side. The device is very simple to fit. It needs only three screws. These are two of the bearing screws at the front and a single M3 screw from the rear. Simply remove the screws, snap the mount over the top of the carriage and re-attach the screws. It's a nice snug fit. Fit the third screw at the rear and it is held very firmly in place with no movement. 


In my case, this sits on top of my X axis belt mount, but I have also released a version to fit a stock A8 Plus. 

My version has a number of strengths

  • Easy to print
  • Easy to mount
  • Strong
  • Low cantilever - mounts close to the carriage
  • Reduced moment on carriage due to rear mounting. 
  • Integrated cable management

The design puts the touch directly in line with the nozzle on the X axis and 50mm behind on Y.

 

I have run numerous cycles of G29 successfully. The build size of the A8 Plus is crying out for automatic levelling and this does seem to help significantly. My first meshes looked like the side of a mountain!


Another thing to note is that if you're using my original Y axis cable chain mount, the fixing on this is now too high at the rear of the bed. Whereas there was nothing before which would come close to it, the rear mounting of the Touch does mean that there's the possibility of a crash. I have now modified the bracket to create a low profile version which obviates this. 

The model for this mount is available at Cults 3D.

Edit (14/08/20): I have a plan for a version 2 of this mount which will include a mounting point for a single NeoPixel LED for nozzle illumination by piggy-backing off of the run to my light bar on the gantry

Comments

  1. \dev\nullFebruary 23, 2021 at 10:44 PM

    How about wiring Bl touch, can you provide any documentation on it?

    ReplyDelete
    Replies
    1. 3D-DesignsFebruary 24, 2021 at 3:28 AM

      I have the SKR 1.4 Turbo mainboard installed. I used the walkthrough below which was excellent.

      https://www.makenprint.uk/3d-printing/3d-printing-guides/skr-v1-4-setup-guide/

      If you're installing to the standard mainboard, I believe it can be done but is very fiddly due to the amount of storage available. You'd have to search for more details on the viability and procedure.

      Delete
  2. \dev\nullMarch 1, 2021 at 9:19 AM

    Thank you for the answer!

    ReplyDelete

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