The Shop > Tools
lathe tool post advice
Arbalist:
If you mean a grinding jig Chris, then yes, I use this one.
The little black one comes with the commercial tool but I prefer mine!
I must apologise for hijacking this thread somewhat, it was not my intention! :doh:
rotorhead:
That's just what I meant, life in our inner sanctum is much easier with purpose made gear.
As for hijacking, I'm just as guilty, but the intention was good, if not just to dispel the virtues of the 4 way...
Andrew Wildman:
hijack away. Its all good reading and ideas for the round-tuit list :nrocks:
Arbalist:
I first heard of the Tangential tool holder in MEW magazine and set about making a small example to see how well it worked. It's the little one on the right in the picture. It's didn't cut very well and in hindsight I'm pretty sure I just got the angle wrong on the tool bit. Some months later I was happily using an insert tool but ended up breaking several inserts on a job. With retirement not too distant I considered the cost of inserts compared to HSS and thoughts again turned to the Tangential tool. I decided this time to buy the commercial tool, it's the black one second from the right. It worked very well but this early model had to be set at an odd angle* in order to both turn and face without moving the tool. I decided to make my own that could simply be dropped into my four way at right angles. The third tool from the right was the second tool I made and works fine but I wanted more clearance around the tool bit resulting in the final MKIII version on the left.
* The commercial version has now been changed and can simply be placed in a four way at 90° like mine to both turn and face at the same setting. The reason for the odd angle on the original was something to do with using the tool for thread cutting I believe.
Ps that's a piece of solid carbide in the commercial holder so it can be used to take the skin off cast iron and the like if needed! :D
rotorhead:
Hi Arbalist,
They look very effective and a well presented finish.
Do you mind my asking what grade/spec steel do you use, I used to make mine from discarded hgv trailer brake camshafts, quite good stuff for nowt...
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