The Shop > Tools
Tool Post Grinder
sbwhart:
I bet you thought I'd given up on this, you should know me better than that.
Any way wasn't too happy with the base plate tried to repoistion the motor on it and made a right cock up of it:- it now had more holes than a piece of Swiss cheese.
So re made it and positioned the rotar so that it drove the spindle clock wise.
Now to sort out mounting the wheels.
I made some blank quils with a female fixing.
To mount the quils the shaft required turning down for a male fixing
To do this I decided to try my ER32 collets on the lathe, I had to turn and drill the adaptor plate so that it would fit the lathe and my RT, for the ER32 mount instead of fitting it on a spigot I just fixed it to a flat face with the three fixing screws, I just nipped up the three screws clock the bore up dead true tighten the screws clocked the bore corrected the error tightend the screws some more so that it was realy tight clock the bore again spot on.
Took the shaft out of the spindle and mounted it in the ER32 clocked it up it was running dead true
Gently turned it down so that the concentricity wouldn't be spoilt.
I can mount external wheels on this.
Then mounted one of the blank quils to it and turned this down to a Dremel mounting.
Her it is with the chuck and point in place.
Thats all for now next job put some spanner flats on the shafts, sort out the dead man switch and thats just about it.
Stew
John Hill:
Stew, have you run your router motor yet? I have great difficulty in finding a suitable belt for the speeds involved. A 6mm urethane round belt just expands into a big elliptical shape then flies across the room! The most effective so far has been half a dozen individual strands of cotton fishing line.
sbwhart:
Hi John
Yes I've ran the router low and high speeds the radthane belt copes OK, it does throw a curve up on the slack side but so far its been OK, tried loading the system by getting hold of the shaft still ok until my hand starts to burn then I let go. Only fun I had was when I ran it with the bearing too tight I didn't noticed it had picked up on the pully, it burnt the belt through in less than a second.
Cheers
Stew
CrewCab:
Nice going Stew :thumbup:
CC
sbwhart:
OK first trial run, I saw some belts at the midland show for £2 each for the enco lathe just the right size for the grinder and a bit harder rubber so they don't balloon out the same as the redthane belts.
Rigged up a dimond for dressing the wheel (thanks John)
For want of something to grind I decided to give my centre punches a clean up.
And this is the result:- real nice finish and good sharp point.
Quite pleased on how it went :thumbup:
I think I need another way of mounting the internal points other than the dremel collets system I've got.
But that job can wait until its required.
Cheers
Stew
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