vxhall

I use a local online printing service, don't know what kind of machine they are using. I think it's just some standard industrial printer.

rob79au, I didn't specify the precision when I printed it. I just use the default. If you wan to have a try, maybe you can ask Tommy if he can increase the axle hole size a tiny bit. The one I printed is a little tight for the cross axle.

The price I paid for it is about 1/3 of a motor, I think I will go with the current spindles. Maybe you can modify your model on shapeways to make it more perfect for others who may need it:).

It works! The hole for the cross axle is a little tight but ok. Thanks Tommy and all of you guys. Now I have a spare motor and a few spare shafts(or say spindles).

Thanks a lot! Will let you know how it works then.

ehhh.... it seems not very economic to order it on Shapeways since the shipping fee is about the same as buying a motor. I wonder if there is a way that I can pay to get your models digital file(for 3D printing) thus I can have it printed out locally?

Thanks @Tommy Styrvoky , that looks amazing! Well as to the detail measurements, the diameter of the spline is quite tricky but I think 1mm is correct, and the axle depth I got is 7.9mm and I think that difference is not a big deal. And for the dimensions for the axle hole, the difference might due to my measure not very accurate or the distortion of the hole after I splice the broken pieces. But comparing the dimensions in your model and the cross axle(https://bricks.stackexchange.com/questions/9406/what-are-the-dimensions-of-a-technic-axle), it should be fine. Anyway I will give a try and let you know.

Just got a caliper and did some measures.

Wow you are so fast! Well I need to find a caliper next week. And because the shaft had broken, so the measurements might be not that accurate. But anyway much much appreciate to what you’ve done.

Thanks guys. I think Boost has been out there for nearly a year... anyway I can try to measure it next week and see if I can figure it out.

I wonder if anyone could help me to find the 3D model of the shaft of the interactive motor in LEGO Boost(17101). The part number of the motor is 6181852. Mine is broken. I bought a new motor but I'm looking for a way to repair the broken one. If I can find the 3D model file of it I may have it printed and make the motor working again.