I have a single 8s 5063 260kv build and everything is great except for the belt slipping on various occations. If i go too hard on the break or on the throttle it will be super loud and the belt slips like crazy. I paid attention to the belt being aligned as straight as possible and not to be too lose. I have a 15mm wide belt, a 16t motor pulley and a 48t wheel pulley.
I was planing on adding an idler pulley but i dont think that i have space for that on my motor mount.
Also i read on this forum about people who have a single drive that never slips and pulls up steep hills without problems.
I am a little clueless what else i can do to improve my drive system?
Thanks guys! And heres a picture of my drive system:
Yeah they might be … i got the belt and gears from ebay and starting to wish that i hadnt hahah, heres a closeup of the small pulley (its kinda hard to tell on a pic)
HTD3mm could be a problem. I believe boosted use 3mm belts though. Your mount has lots of space on it, so i would try tensioning the belt by moving the motor further down the mount. It can be tricky but definitely will help, unless its super tight already.
I advise against over-tensioning. I recently had to rebuild an @JLabs 6374 motor because I had my belts too tight. The motor shaft walked out, broke the grub screws, and ruined the motor bearings. I had to replace them, and drill out the grubs from an M3 to an M6 via tap&die set.
Just a glance, and it looks more familiar. On the right track. Now get a longer belt. 255htd5m15!! Hardware to accommodate it. I build for hill climbing, maybe you don’t need all that…
You can also replace the 18T 3M motorpulley with a more teeth pulley if the topspeed won’t be to high. Just a cheaper way
Or you can use a pulley idler?
It all depends on your build. What one person uses may not be suitable for another.
Im using 280mm on a 15/40 Gear configuration.
You can either do the measuring and math and then figure out what belt you need or trial and error of buying many belts.
If you do buy the gears measure them out and use a online calculator to find the right belt.
https://sdp-si.com/eStore/CenterDistanceDesigner
Input the gear teeth, and the center distance and click show parts on the belts section.
Yep, 3M is your issue. They’re not as capable of delivering as much torque. The only benefit is they’re smoother and have more geqrar rqtiow available. Not only that, 3M is not as thick
alright so i am happy that you guys figured out what my problem is! stupid ebay kit delivered 3M pulleys and belts … if i can give some advice to other first time builders: stay away from cheap kits- nothing is more expensive than buying things twice!! Ill have to rebuy the whole drive system now