progress on prototype unit:
need to thermal form the chain gaurd & add it but for all practical purpous, its done & will be shipped to the beta tester monday.
(he will remain un-named in this thread for the reason I don't want to increase any pressure on him to complete his build for review. I will let him unveil it in his own time, It is being sent to him at no-charge with the instruction to be honest & forth comeing with any opinions & faults the design may show. I personaly hate hype building & "secrets" threads from vendors, I hope this doesn't fall into that catogory)
Here are some photos of the completed unit sans chain cover:(wow thats a shity casting for a prototype LOL!)
here is a photo of the unubtainium #35 freewheeling drive sprocket:
1st the adapter
all the parts in lay-out-
Here is a realization regarding that freewheeling drive sprocket-
It takes Way too much time to fabricate all those parts into a price reasonable packadge for this project....It totaly elliminates the advantage of low cost kart sprockets. In a bicycle application a freewheel is critical to the drive system (a motorcycle not so much) I see that BMX chain on standard sprockets with a simlpe freewheel adaptor are prolly totaly acceptable & far more cost effective for this drive set up.
Not to say I won't build one for you.....but I crindge when I total up fair cost for making these as 1-offs. (but then again my cringe factor is much lower than the average "bicycle" builder)
the rear wheel adapter in progress:
I invested in some new (real) lineal ways for my tiny cnc machine that hopefully will make these a viable product also. But there are options already out for this product & i am not looking to undercut anyone's current offerings.
& here is a shot of the forming pattern for the chain gaurd:
oh & details of the tourque limiter assembly:
Parts lay-out left to right: Mainshaft assembly, friction disc, bushing for sproket centering, friction disc, keyed thrust washer, belevile spring, tensioning collor & tensioning bolt. Its a ton lighter than by adding a dalton unit on the shaft & saves a full inch of width.
a close up of the high temp clutch material for the friction disc:
I will update a photo or 2 & follow up with the beta man on monday.
any more questions or input?
thanks & happy easter.
(edit for puncuation & gramatical errors....shop major-not english)