Coaster progress
After a few months of design work the first of many parts manufactured , a rear coaster brake hub shell is finished with the first operation . Scraped , the part made to print. Problem is I made the print wrong , a .100" error on the milled slot length , .480" verses .380".
One hub shell finished to this point required two to three months of reverse engineering and redesign , material and bearing research , machine preparation and finally 32 minutes actual hands free machine time. There are two minor operations remaining to complete the hub shell.
Some fine tuning to the process and a few of these internally modified coaster bake hub shells will be run off while the machine is set up for this part.
joe
After a few months of design work the first of many parts manufactured , a rear coaster brake hub shell is finished with the first operation . Scraped , the part made to print. Problem is I made the print wrong , a .100" error on the milled slot length , .480" verses .380".
One hub shell finished to this point required two to three months of reverse engineering and redesign , material and bearing research , machine preparation and finally 32 minutes actual hands free machine time. There are two minor operations remaining to complete the hub shell.
Some fine tuning to the process and a few of these internally modified coaster bake hub shells will be run off while the machine is set up for this part.
joe
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