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Eric Karczewski


Designer, Product designer, Maker
A young engineer exploring the possibilities of Product Design in 3D manufacturing, while growing my horizons into Jewellery and Art.

Driven Lego Bearing Hub! - (Ackermann Steering)
freescape_8 @jgemmeke - That was a good choice, as the newest ones allow a 3/8" outer diameter bearing to fit between them. But if your model allows for the height, my new non-driven hubs have the spacer and can be quite sturdy. Measuring my available pieces, there's really only 0.15mm that I could add to fill in that gap, but the part can be flexed beyond that; do you think either it could've been stretched, or the metal liftarm is slightly smaller than 8mm?
freescape_8 @jgemmeke - Thank you for the suggestion, I actually never considered using them that way, but I might be able to work something out. I'm sure you know the intention was to be between ball joints, and have 1L space inside for a drive shaft. I'll definitely keep the older flat version then, but maybe tighten that space up. Just to be sure, your picture is of the version without any built-in bearing spacer, correct?
lego 5x7 frame with holes for 3/16 ball bearings
freescape_8 @cedricrb Lego axles are approximately 3/16", so I think it's safe to assume ID.
Hey, I know I'm just a tad late for this year's christmas, but you still have a brief chance to get in on the new earring design. http://shpws.me/N4GY Christmas Tree Twirl
New product today, Submitting it to the iDesign Challenge! - http://shpws.me/MNvL TYE Business card stand


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