The taulman3d.com range of filament seems very interesting, i think Alloy 910 or Nylon 680 would be suitable for gears. Eventually i will get myself a E3D Hotend and try a something like this on my Creality CR 10, but that can take a while.
Iāve got a Stratasys F370 so I can print in almost any material. Heated chamber, heated bed, dual extruders, soluble support
yeah ok that beats the CR 10 (at least until i do all those upgrades :D)
I sure hope it does for $20,000
Ive been very short on time lately but am back and more ready than ever to get this thing figured out! I will try my best to get all files finalized and 3d print the drivetrain for a mockup on Monday. If I can get my dxf files figured out, maybe ill be machining a mount or two Monday also
Why donāt you take this a step further and create an axle style truck that would still have a section for the bushings and the kingpin to go through, and a nipple to sit in the pivot cups?
You could mount the motor under the deck, facing inwards (toward the front if at rear), and one motor could drive both wheelsā¦ Heck, if you spent some more time you could even integrate a diff in there for those thinking that the fixed axle is going to affect steering (which for most of us, wonāt).
Arrow points to where the motor would connect toā¦
Not a bad ideaā¦
Actually I like the idea of one motor per wheel. It eliminates issues with slipping and makes braking better. The differential would suck for hard braking compared to two smaller motors.
Of course it wouldnāt. The differential would lock and youād have the same braking capabilities as a single motor, single wheel drive setup. In fact itād be a bit better because two wheels will be gripping instead of just one, which would mean thereād be less chance of skiddingā¦
Not if there was a differential. Whichever wheel had less traction would skid, robbing braking power from the other wheel
Wow! and theres the oil bath too
Yes but If youāre distributing braking force over two wheels thereās much less chance of skidding. But yes, if one did skid, youād loose some braking abilityā¦
Oil bath?
Iām looking at it from the perspective of going over pebbles, a brake on the differential would be robbing the other wheel of stopping power. Iād far prefer two wheels braking independently, even for half the wattage, than one differential braking two wheels
I thought about doing this for a mountain board but I donāt see how this would be good for a longboard not enough room
It would reduce the amount of maintenance (if I do it right), simpler to setup, could coast further, more compact etc.
The pic above w bevel gear contained and protected looks really nice. Be a shame to go to the trouble and ruin it exposed. How much u find the gears alone cost? I looked into them and couldnāt find helical gears off the shelf for cheap. Helical being bevel gears that are harder to make and quiet. Love to see it done. Or maybe someone could adapt whats already out there.
Havent looked into cost yetā¦ I know that they are not cheap though. Iām having trouble understanding that picture. The way I look at it, the big gear is fixed to the axle making the entire axle rotate. I have the feeling that thatās not the correct use for it
Maybe u know, and was already said, thereāll be axial forces and youāll likely need thrust bearings on both sides. And the mount will have to take that axial force as well. That design above and use a floating axle for one of the wheels, so just one wheel driveā¦be slick
I think some have forgot a thread posted here of a University team working on the same concept. Iām not sure what happened to them.