How to make a 450rpm 3.25in drive without thin spacers

[PleaseHelp1]

I don’t know how to build a 450rpm drive. We don’t have 2.75in wheels. If anybody can tell me how to get thin spacers that would be great.

[Gigahertz.t]

@PleaseHelp1

I don’t know how to build a 450rpm driv

Catalogue of Drive Gearings

Due to frequent questions and discussions on drive speeds, but not a lot of resources on the layouts of the possible gearings themselves, I’ve created this resource for people to see a catalogue of drive speeds that I’ve deemed as viable, and some commentary on each layout. All drives shown here are on 6 motors, and all drives here are compatible with center traction wheel. (some drives have 8 wheels so traction will be offset from center). The layouts shown can easily be translated to 4 motor …

@PleaseHelp1

We don’t have 2.75in wheels. If anybody can tell me how to get thin spacers that would be great.

Ok… what do you mean by “thin spacers” (washers? 1/8 in?)? (Here are some vex ones and some robosource ones)
As for how to build it, that varies as every drivetrain-build is unique in its own way (hopefully). Here’s the first video in a tutorial series from spin up you can iterate off of:

1 ChassisPart1

[PleaseHelp1]

Thin spacers like this.

[DougMoyers]

I do not know where in the world you are, but in NA+ you can look for parts suppliers like Graingers or McMaster Carr. Probably could poke amazon hard enough to get a result as well.

[Ethan-52274X]

What we did was we added a spacer in between the wheel and the chassis frame (red). Then we added a shaft collar on the 36 tooth gear (blue).