A sneak peak at something new i designed
I designed this for not only WPL/JJRC trucks and crawlers, but it also can be used in smaller scale vehicles and comes with a set of adaptors which means it can plug into WPL type chassis
This is a really compact unit
40mm width (wpl chassis rails are 53mm)
It runs a geared 370 motor which can run 2s, 3s and if your mad it will take 4s on short bursts, but seriously your axles will break, i tried it lol
The system comes in a few different options. There is a low power version which runs a narrow belt, there is a normal level which runs a medium size belt and there is a version which can run a wide belt, maybe for heavy loads or towing.
The transfer case features a gear reduction after the planetary gearbox in the motor and if you use WPL/JJRC axles, there is a further gear reduction there aswell.
On a WPL type truck it loses approx 1km/h, but if you knock it up from 2s to 3s lipo, you more than make up for that loss in speed.
The motor is able to be adjusted so the tension can be set on the belt. The tension on the belt can be setup by use of a mobile phone app which is downloadable in the play store.
There is also another few versions, i have a dual motor system which uses 2 of these bolted up together and 2 belts. This can be configured for AWD or 4WD depending on user preference. Whats the difference i hear some ask??? Well the centre main shaft can be cut in half so that the front and rear motors run independently so act as an electronic diff. This would be suitable for slightly longer wheelbase builds
I am also working on a more compact dual motor belt drive which uses a single wide belt, but does not have the option to adjust belt tension. This would be more appropriate for crawlers or smaller dual motor unit vehicles
Some build, setup and extreme test videos to follow.
If i were to compare this to the stock WPL metal transfer case version it is smaller and will create higher torque, but is slightly slower.
Maintenance is easy, there are access holes to allow grub screws to be re-tightened without stripping down the whole unit
The belt tension can be reset by simply removing the top cover, so again it can be left in situ.
All pulleys and belts and bearing are easily available in the market so can be replaced.
I am also working on some other drive units to allow other more extreme applications using WPL type axles. I hope to have a direct drive WPL axle adaptor for people wishing to make high speed run vehicles without the need of having to use universal joints which explode at high rpm