Cheap Ass 6x2 Pneumatic Belt Setup. 3D printed Pulley/ Vex Versa Pulley. Thingiverse link in post #534

Nice! I like that you are using all 6 screws. Maybe I’ll update my design.

Do you have a pic of your cnc router? How much did it cost?

1 Like

Thanks! The router belongs to the school I work for… it was around £4K and is not the best! It copes with Delrin well enough though.

image

3 Likes

Problem I am having is these wheels drink battery juice for breakfast!! I was expecting 20km range on my mini AT build, looks to me like I will only get about 15km.

I noticed a ~50% increase in energy consumption compared to my 83mm 75A Flywheels. Definitely worth it for the softer ride (the roads are really bad in my area).

What PSI are your wheels inflated to?

Wow 50% is bad!! But yes seems about right…

I have these at maximum PSI of 70.

Double the energy consumption for pneumatics has been the rule of thumb for like 2 years now.

3 Likes

So it works. Works pretty well. The vex pulley adapter is just 1cu inch. So probably less than a dollar to print. Now if only I had a motor to test everything. IMG_20180929_015052 IMG_20180929_022016 IMG_20180929_021245

2 Likes

I’ve used m4 bolts and I can’t find any m4 nuts that sit in the vex pulley nicely… I hate using imperial parts but it looks like the way to go!

Was the pulley 3dprinted?

No, I bought it from these guys,

Seems i am late. The prices rised a lot

1 Like

what price?

Not 69$ for 4 wheels anymore. I see 18.72€ each

you can still get them cheaper, but there is a difference. The one version that is cheaper can only take 40psi and the slightly pricier can take 70psi.

1 Like

Hi Guys,

I wonder if these tyres will fit these cheap rims. They may reduce the rolling resistance and increase battery as there is less tyre in contact with the road.

https://haggyboard.com/products/bergmeister-all-terrain-tire-set

also if the bergmeister tyres fit the cheap rims than these should also fit.

Same ID from what i understand but smaller OD.

Min. Order is 500 pieces

Let’s do an group buy!:grinning: @Trdolan03 Who is in?

What rim is this going to fit? Has anyone here tested them?

It fits haggy board rims.

I want the 6x2 set of haggy board rims and i have a cheap 6x2 aliexpress tyre that i purchased for testing purposes.

Once I have the haggy board set I can then test if the tyres are interchangeable. If they are that means his 6x2 tyres will fit and the 5" ones will also fit. Just have no idea on the inner tube for the 5" ones.