Minimalistic Mk7 replacement
by whosawhatsis, published
This works with MBI's Mk7 and QU-BD's MBE extruders. It will fit the Mk8 as well, but the Replicators have plates above the extruders that will interfere with the spring arm. There are several derivatives that solve this problem, most at the expense of the rear clean-out opening.
The best shaft for the bearing seems to be an M3x10mm flat-head screw, inserted from the motor side of the idler piece. A piece of 3mm filament should also work in a pinch.
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I don't know if this was covered, But would the bearing and screws from the makerbot supplied filament feed thing be compatible with this?
Yup, that's the one. I normally say don't pay more that $1 each before shipping, but since you can get free shipping on that one and you only need one, it's probably an ok price.
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