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airgraphix

over 8 years

Hi I like themod you made to this but as reported one side is too shallow for the bearing so I have made it deeper, see here, all fits together really nice now. https://www.youmagine.com/designs/further-mod-of-antiklesys-mod-of-chopmeisters-h3-extruder-for-umo

Antiklesys

over 8 years

Hi RBRT, I haven't had the time to check it yet as I first need to find it and it seems to be "lost" on an external HDD. I will continue checking my disks and double-check it when i find it. Sorry for the delay man!

RBRT

over 8 years

Did you find any issues with the design? My modification with the 2 washers seems to be working okay for the moment, the Ultimaker is being used in a Hackspace and several people have been able to use it without issues.

Antiklesys

over 8 years

Thanks RBRT for the information! I'm reviewing the files at the moment, I think I may have found the issue :)

RBRT

over 8 years

This photo may help as well, it's the right hand bearing that sticks out a little. You can also see the washers I've used to shim it as well. https://goo.gl/photos/YNuz5PLpgoFxyFpF8

RBRT

over 8 years

I didn't manage to take a photo of the issue and it's now fully assembled on the printer so it would be a bit of paint to take apart right now. I have however done a mock-up in OpenSCAD with the STL for Side_A and a cylinder representing the dimensions of the 608 bearing. It seems to stick up slightly which means that Side A and B don't fit together properly (once the key is in place) and it would also mean the idler bearing would collide as the gap between the 608 bearing is too small. Adding 2x M3 washers seemed to open up the gap enough. Let me know if you need more info. http://i.imgur.com/m5d7Bno.png http://i.imgur.com/57OxaqR.png

Antiklesys

over 8 years

Hey RBRT, what exactly do you mean by shallow? Can you post a picture of the inner assembly? I'll then check and modify the part accordingly ;)

RBRT

over 8 years

The feeder in action: https://youtu.be/TG--L5v6_FI

Chop's H3 Extruder Upgraded

By Antiklesys

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