EUDAX 100Pcs STEM Toys Shaft Round Rod Axles for DIY Toy RC Car Boat Helicopter Model Part (2mmx100mm)

These are great for school/stem projects. I buy these several times per year, and have done so for several years, for use in my robotics, engineering, and manufacturing classes. Consistent quality and quick delivery.

I got these to add strength to my 3d prints. They have worked out great and I haven’t had any issues with them. The advertised dimensions seem accurate, although I haven’t measured them in any meaningful way.

The sheer quantity you get for the money here is several times that of other shops selling 2mm shafts/rods/axles, even compared to Uxcell, which is unusual. The rods are useful for reinforcement, hinges, indexing/positioning, and even linear motion in your 3D designs that are to be 3D printed. There are little 2mm plastic bushings you can buy to facilitate smooth motion, but a cut segment of Bowden tube also seems to work very well (it is Teflon and you can compress it in your design for tight fitment). For example, I used the rods, cut Bowden tube, and some M2 hardware to make a micro 2-axis stage to position optical fibers with a footprint of only 32x20mm [1 of: EUDAX 100Pcs STEM Toys Shaft Round Rod Axles for DIY Toy RC Car Boat Helicopter Model Part (2mmx100mm)] $9.99 @ 2022-02-22

awesome

Got these to put wheels on 3D printed cars for my kids. They are very strong and the thickness is perfect for the vehicles I've printed. They're longer than I need, but it's better to be too long than not long enough. They're easy to cut down to the exact length needed, so they've been fantastic for me. I highly recommend these if using on toys for kids that could destroy a Sherman tank (like the monsters that run around my house calling me dad).