Jump to content
Ultimaker Community of 3D Printing Experts

Hacking BFB3000 endstop problem


Recommended Posts

Posted · Hacking BFB3000 endstop problem

I'm currently replacing the BFB electronics of a BFB3000 with an Ultimaker 1.5.6 pcb.

Keeping the old frame, motors, sensors and wiring of the BFB3000.

I stumbled upon a problem with reading out the endstops. :?

The endstops are reed contacts, but the cables run along the wiring of the stepper motors.

The Ultimaker endstop connectors take up some interference from the stepper motors.

This was no problem with the BFB board, because the sensors had a small network with 2 resistors and a capacitor.

What could this schematic be and look like?

Further twisting the cables (they are only partially twisted) could bring a solution, but I'm wondering if an network could also solve my problem.

Any help is greatly appreciated. :)

  • Link to post
    Share on other sites

    Posted · Hacking BFB3000 endstop problem

    NIce Hack!

    would love to do that to our Schoolprinter.. also a BFB3000.

    you could try to use shielded cables and rewire all endstops.. but i know that could be a longer task to do.

    Thers also this sticky shielding mesh you could buy and wrap the endstop cables.

    http://www.hollandshielding.com/223-R_F

    ... eld-en.htm

    I had some interference problems on my ultimaker.

    got lot of old usb cables around so i chopped them up an rewired all endstops and all additionnal fans on my Ultimaker. no problems since.

  • Link to post
    Share on other sites

    Posted · Hacking BFB3000 endstop problem

    You could try twisting or shielding. Else you could enable the "ENDSTOPS ONLY FOR HOMING" feature in the firmware, this will ignore the endstops during normal printing, which could damage your machine, but it will never ruin a print because of EMI.

  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
     Share

    • Our picks

      • New here? Get ahead with a free onboarding course
        Hi,
         
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 11 replies
    ×
    ×
    • Create New...