Wow, this must be C2 Week on CPF :nana:
Two coming from Rat is Australia & two more from genius5th.
My shop has been buried in e-call work (emergency call out) and yesterday saw five hours on the lathe making a motor-shaft-to-chain-sprocket adapter. Touchy work as the adapter had one bore that needed to hit within .0003" (.0076mm) and one outside diameter that also had the same tolerance. Managed to nail both those dimensions & the part fits very well. The adapter goes on a motor that makes 380 lb ft (515Nm) of torque, so the material used was 4340 chrome moly shafting. Tough stuff to machine, but the adapter will last for years - running 12 hours per day, 6 days per week.
First two photos shows the size of the gearmotor & the 1.750" diameter output shaft. Surefire E2L Outdoorsman shown for scale:
The original chain sprocket was bored so that the shaft could be turned down & press fit in. Two hardened dowel pins retain the sprocket and transmit motor torque.
From the back end (the end that first goes on the motor shaft) the boring job looks much like that for a light:
That job will be almost all finished today, with final installation tomorrow morning, so the lathe will be clean & ready when more lights arrive.
Still working on a 24 hour turnaround time, so your light or lights will not be long in my shop.
Shipping is combined whenever possible, and four lights will fit into a Small Flat Rate box unless they are longer than 8" (203mm). Domestic shipping is $5 & international is $14 as long as all the lights will go into the Small Flat Rate box. Each light is wrapped in a thick layer of foam padding, so multiple lights in one package will never touch each other.
