Hmmm, will take a look at that, spent ages the other night form grinding a tool steel cutter for my notcher -'if I made a holder, I could buy the tips....
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Johnnybravo
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I’ve got a couple of holders like that. Not the fong Kong specials though, one made by Ph Horn and the other made by Dummel.You do have to finish your key way into a groove or a hole drilled through the side of the part if you are not broaching all the way through the part
Johnnybravo
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You don’t take 0,5mm cuts so the force is negligible. All the inserts for the tooling is normally carbide,so you need a high feed rate or the insert chips. Minuscule cuts with a high feed rate. never had any issues. Your spindle bearings take a worse hammering taking a 1mm interrupted cut at 100rpm….
Johnnybravo
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All you need to do is remortgage your house
Johnnybravo
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Unfortunately everyone seems to change their inserts slightly so it only fits their Holders
zeppelin builder
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why not superglue lengths of tig wire in the grooves then fit a plain tube over and fuse wires to tube at both ends .remove and silver solder inside
press into handwheel bingo !
press into handwheel bingo !
Hmmm, inserts and holders, a minefield I haven't found my way throgh yet...Unfortunately everyone seems to change their inserts slightly so it only fits their Holders
Pigeon_Droppings2
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I'm a bit of a bodger....so this is definitely a bodge.
Stick a steel sleeve round the spline (with a bit of a gap) and fill the gap with low temp ali brazing rod...then work your handle off the steel outer sleeve. Would also work with epoxy I should think too.
But as I said...I'm a bodger...it can be improved upon with a keyway etc but still a bodge.
Stick a steel sleeve round the spline (with a bit of a gap) and fill the gap with low temp ali brazing rod...then work your handle off the steel outer sleeve. Would also work with epoxy I should think too.
But as I said...I'm a bodger...it can be improved upon with a keyway etc but still a bodge.
Sean64
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Brilliant.... thinking outside the box
Johnnybravo
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Well I notched the inside of my gear, it didn't go too well. The tool steel cutter (modified lathe tool I had lying around) was too soft to cut the steel bolt head I used for a blank and went blunt. So I resharpened it, and hardened it. When I cut the gear I finished it and removed it. But found the cutter had broken on the bottom - so rubbing on the way up. And of course I ommitted the tempering step...
I think I know one of the reasons for this - I hadn't been tightening the clamp on the dividing head on each slot, so there was some movement in the workpiece - lesson learnt. Also a dividing head may not be ideal for this.
So I still need a new cutter or two..
Oh, I hand fettled the gear, its now in the notcher and working like a goodun.
I think I know one of the reasons for this - I hadn't been tightening the clamp on the dividing head on each slot, so there was some movement in the workpiece - lesson learnt. Also a dividing head may not be ideal for this.
So I still need a new cutter or two..
Oh, I hand fettled the gear, its now in the notcher and working like a goodun.
