When you do the spacers at the beginning, does it matter the size because I'm looking for the 2 spacers and we don't have enough of the spacers

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The thing that matters is the space you want between screws/axles, most spacers are .25, .50, and .75 inches long, there’s also the 1inch spacer.

Yes, size matters, if you need a .75 inch spacer, but you don’t have it, use either a .50 and a .25, or use 3 .25 inch spacers (it’s recommended use the bigger spacers for big spacers, to save small ones when needed for a small space.)
If this doesn’t help, buy more spacers here, they’re relatively cheap. :melting_face:

Ok thank you so much! This will help me move forward with my build and with other parts:).

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And just curious; what do you want to make for your robot design? I might give you some useful tips.

I am using the basic model. I used the Axel directions to build it. If you have any tips that would be great!!