Robert has belt drive kits now

[JerboaJohn]

yeah, samey samey drivetrain China 2 strokes
tire width might be a concern. would alignment be more forgiving than a chain?

 

[HumanPerson]

Anyone have a 3D printer?

 

[BrewerB]

Anyone have a 3D printer?

Soon Ill have two! My first one needs a quick linear bearing repair, and my second one is in route to me for an early xmas present!

What are you thinking about printing for this?

 

[HumanPerson]

Soon Ill have two! My first one needs a quick linear bearing repair, and my second one is in route to me for an early xmas present!

What are you thinking about printing for this?

All of it?
or just the two gears?
I just think it can be made for a bit less, out of plastic?

 

[JerboaJohn]

there might not be enough room to do a bigger drive gear, but the back sprocket could be done a little smaller. the belt would soak up some of the shock and there's more fiber choices now than couple years ago.

if you could spec a sprocket for this, you'd probably be able to sell quite a few of em. at least you'd have fun trying diff ratios n see how long 1 would hold up. no idea how many feet of fiber you'd need for 1

 

[BrewerB]

there might not be enough room to do a bigger drive gear, but the back sprocket could be done a little smaller. the belt would soak up some of the shock and there's more fiber choices now than couple years ago.

if you could spec a sprocket for this, you'd probably be able to sell quite a few of em. at least you'd have fun trying diff ratios n see how long 1 would hold up. no idea how many feet of fiber you'd need for 1

Even at 100% infill (totally solid), I really have reservations on how well it would hold up. This is a extruded layered plastic process, so there are some inherent weaknesses. If anyone cares to draw up the pulleys in CAD, I will print it them and send it to whomever cares to try to install them on their bike.

 

[MotorBicycleRacing]

How wide is it? Seems it would need a narrower tire.

Same size belt as the 4G trans. 15 mm wide.

 

[curtisfox]

Tad over 1/2", not much different then chain..................Curt

 

[Old Busted Hotness]

I still don't see it working without flanges on the pulleys. Just an RCH of misalignment and the belt is gonna throw itself off. The flanged tensioner isn't enough to keep it in line. I think a better way would be a multi-V belt with a stiff tension spring to prevent slipping.

 

[curtisfox]

I still don't see it working without flanges on the pulleys. Just an RCH of misalignment and the belt is gonna throw itself off. The flanged tensioner isn't enough to keep it in line. I think a better way would be a multi-V belt with a stiff tension spring to prevent slipping.

Best there would be serpentine belt 5 grove is the same has having 5 belts. But flanges would be easy, just some thin metal bolted or riveted on the side of the pulley................Curt