sdibbers
Well-Known Member
I posted this on my member's project yesterday but thought it might be of interest for folks here in the lounge.
I needed to make a new bush for the throttle linkage on the bracket by the steering box (my car is LHD). My day job is a design engineer for a small consultancy in NYC. I'm lucky enough to have access to a 3D printer that builds parts in polycarbonate/ABS plastic to an accuracy of 0.004". So I thought I'd have a go at designing a bushing that I could fit without having to remove the linkage at one end.
So I designed the bush assembly in a 3D CAD software to look like this:
I'm lucky that I have access to an industrial 3D printer that prints in PC/ABS plastic. So I printed the three parts last night:
I used a 10/32 brass insert pressed into the back with a cap head screw. First step will be to put the small segment into the bracket:
Then I will assemble the shaft in place and put the back onto the bracket:
Final step is to screw the front on capturing the shaft in the bush:
So I fitted the parts last night. Someone had just used a rubber grommet as a bush before, needless to say it was sticking all the time. Throttle response is great now, and no dangerous stuck accelerator now. I'll let you know how it wears.
I needed to make a new bush for the throttle linkage on the bracket by the steering box (my car is LHD). My day job is a design engineer for a small consultancy in NYC. I'm lucky enough to have access to a 3D printer that builds parts in polycarbonate/ABS plastic to an accuracy of 0.004". So I thought I'd have a go at designing a bushing that I could fit without having to remove the linkage at one end.
So I designed the bush assembly in a 3D CAD software to look like this:
I'm lucky that I have access to an industrial 3D printer that prints in PC/ABS plastic. So I printed the three parts last night:
I used a 10/32 brass insert pressed into the back with a cap head screw. First step will be to put the small segment into the bracket:
Then I will assemble the shaft in place and put the back onto the bracket:
Final step is to screw the front on capturing the shaft in the bush:
So I fitted the parts last night. Someone had just used a rubber grommet as a bush before, needless to say it was sticking all the time. Throttle response is great now, and no dangerous stuck accelerator now. I'll let you know how it wears.
