Hi All!
Just wondering if anyone has had similar issues with their Fuse Sift cartridge mixer. We’ve had the machine nearly a year now and have 7 Fuse+1 printers to go with it.
Just before Christmas we had a problem where the mixer would get jammed and be unable to complete a 10 minute cycle. We had an engineer out who stripped the machine and got it going again. He mentioned that powder does accumulate in the rear of the sifter and it will need periodically vacuuming out. The powder is getting into the bearing on the mixer and clogging it up (huge design flaw imo). We are now at a point where it is starting to jam again. We usually have to fill and mix about 20 cartridges a day so this is obviously not ideal. Has anyone experienced this and found a fix for the issue?
Hi @AntHope ,
I’d suggest the following as per our support article:
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Check for and clear any obstructions blocking the mixer.
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Remove the mixer, following the instructions in the guide to replace the mixer assembly.
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The sides of the mixer assembly are open. Clean out any powder that may be jamming the mixer, reinstall it, and try running the mixer again.
If you see no improvement, please reach out to our support team by opening a case and sharing all necessary info, including your Sift’s serial name so we can take its warranty status into consideration when suggesting next steps.
It will take you around 30 minutes and around 50 bolts to do it yourself.
I’ve been having similar issues,
Take it apart as the instructions provided, if it’s very dirty, extract the motor and the PCB on the back
Degrease it and wash it.
Then apply a liquid grease in spray to the bearing, put everything back and you’re done.
I just did it and it’s working smoothly, no need to recalibrate. I would like to know the technical reason of this 
As for the technical reason, it’s probably just ‘powder ingress’ causing increased torque. When the motor has to work harder than the factory-set threshold to move the mixer, it triggers that error. Your cleaning likely brought the resistance back down to normal levels.
