Cutter and lathe tool grinder advice need

[Les Jones 1Participant @lesjones1]

Hi David,
I have sent you a PM with the link to the zip file which contains all of the files for the tacho article.

Les.

[WolfieParticipant @wolfie]

I made Harold's rest and its good. I just need to adapt a grinder when I work out how to. At the moment I have one with a disc at each end, a coarse and a fine

[Harold Hall 1Participant @haroldhall1]

Thanks Wolfie! Have you seen my adapted off hand grinder here

**LINK**

Harold

[Sub MandrelParticipant @submandrel]

Hi Harold,

I see you turned your new flanges with the grinder running but attached to the lathe bed. I recall you expressed pleasant surprise that depite the high speed this worked well.

The shaft of the grinder I used was centered at reach end. I actually held one end of the shaft in the three-jaw and supported the other end I was fitting a collar to on a rotating centre. I can't remmeber what I biodged up to stop the body rotating, but the arrangement worked really well. I was surprised at how accurate and free from play the bearings were for such a cheap grinder. Oddly enough, having made a 'proper' tool and cutter grinder, I found it was useful to get a replacement bench grinder!

Neil

[SvarvenParticipant @svarven]

Hi

I think i start with Harolds rest first, as it is easy to make and cheep too. Then i vill make an havier one.

Witch one, im not sure.

Would be interesting to se the drawings of the BSMME grinder.

Im glad to be here at this forum, you are all so helpful.

excuse for my bad english.

But im much better at swedish

Bertil

[NJHParticipant @njh]

Hi Bertil

I suspect that your English is MUCH better than almost anyone else on this forum's Swedish !

Norman

[Les Jones 1Participant @lesjones1]

Hi Neil,
When skimmming the shaft on my grinder I held one end in the three jaw chuck (Which is quite accurate.) and held the outer of the bearing at the tailstock end in the fixed steady. (I did not trust the centre drillings.)

Les.

[Sub MandrelParticipant @submandrel]

Hi Les,

I checked with a DTI first, the centres on mine appeared to be accurate, suggesting the shaft was turned between centres. I suspect they also use them for balancing the armature as well.

I mede the bush a push fit for the diamond wheel, it spins with no perceptible runout.

Neil

[Harold Hall 1Participant @haroldhall1]

Interesting methods Neil and Les for skimming the shaft. I remember thinking it was a job that had to be done to ensure the wheel ran true, with my first idea being to dismantle the motor so as I could just work the armature. Eventually though as you will know, I bolted the grinder to the lathes bed and used the grinders own power to turn the shaft.

With your ideas the lathe can obviously run at a slowish speed and there would no chance of the whole thing rotating so no doubt some simple restrainer did the job.

Regarding the fit of the bearings, as I was purchasing from the local B and Q I took if off the shelf and give it a tug or two before purchasing, like you Neil I was surprised just how free of play it was. With the task complete I was very pleased how vibration free it was when run.

Harold

[Sub MandrelParticipant @submandrel]

> B and Q

How the other half lives! I have to make do with Wickes

Neil

[MICHAEL WILLIAMSParticipant @michaelwilliams41215]

Most of the common types of HSS drill and cutter used in home workshops can be sharpened perfectly using lathe and toolpost grinder .

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