The Craftmans Shop > Radio Control Models
1/16 Scale RC Truck parts
vtsteam:
Still following... :coffee:
ddmckee54:
Thanks, I was beginning to think I was just talking to myself again. But since I'm the only one in the house, I guess at least I'm always talking to the smartest person in the room?
vtsteam:
I don't really know much about big trucks, or model trucks for that matter, so I look at your renderings with admiration, but not a lot of comprehension about what's needed or important in the mechanics. I'm glad you do explain, and post these things and your progress, and I'm sure I'll learn more in reading about it. :beer:
ddmckee54:
OK, I've found out that I'm going to have to revisit my chassis design a little. So far I've been sticking to the measurements taken off the Bruder MAN mixer, but that's gonna have to change a little. I'm going to have to modify the axle spacing/locations a little. I cannot find an off the shelf axle that will fit the existing center axle to rear axle spacing. I currently have an absolute minimum drive shaft length of 42mm. When you add in the 7mm I need to be able collapse the drive shaft to take it out. then I need a drive shaft that has a minimum length of 35mm. I was able to find drive shafts in the 30-36mm range, but they only had a 2mm ID with a 6mm OD. Nope, that ain't happenin'. I did find a Lesu drive shaft with a 5mm bore in the 45-50mm range, and have one headed my way. It costs 3 times as much as any of the other drive shafts, but none of them can be made to fit.
My current plan is to add 5mm to the spacing between the center and rear axle, and play with their locations a little so I don't mess up the drive shafts coming off the transfer case. By adding the 5mm to the axle to axle spacing, I SHOULD get into the middle of the range of motion for the Lesu drive shaft. Unfortunately it also means that the drive shaft and the axle have to be installed/removed as a unit.
ddmckee54:
More parts arrived today, the 60-70mm drive shafts showed up. I DO believe that they will work for the drive shafts from the transfer case to the front and center axles. According to the tracking info, the Lesu axles should be here on Saturday - we'll see if they'll work out then. I still have to modify the drive pins for the drive shafts. I need to turn the pins down from 3mm to 2mm. I'll need to make bushings to support the unthreaded end of the drive pins in the drive shaft knuckles since those holes are currently 3mm.I'll also need to make bushings for the transfer case end of both the drive shafts, which needs 4mm bores but currently have 5mm bores. I'll probably have to modify the drive pins, and make bushings for the the Lesu drive shafts too.
Pretty soon I'm going to have to quit thinking of this as a generic design project. and make it an actual Work In Progress. We are getting dangerously close to the point where this work will only be applicable to one truck.
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