Stent Tool and Cutter Grinder

[Meldonmech]

Hi Guys

                I was just trying to sort ought some of my photographs this afternoon, and however many times I do this there are those pics that seem to prefer hide and seek than be viewed. My PC has a mind of it's own and changes the location of pics I have filed. The pics I have discovered are of the Stent Tool and Cutter Grinder which I built some time ago. The slides were machined on the shaping machine then accurately hand scraped. A work head was constructed to take Myford collets and an indexing device fitted. The Myford spindle nose could also take a small chuck or tailstock type chuck. There are a pair of centers, not shown. Slide stops are fitted to adjust movement.
                  The machine was entered into The Midlands M.E. Exhibition at the time and achieved a Bronze Medal.
                                                             
                                                                            Cheers David

[vtsteam]

Looks great!

[philf]

Hi David,

Very nice. 

I've just looked at the price of the drawings and castings - £300 + VAT so I don't think I'll add one to my list of things to make.

I thought it might make a useful compact surface grinder with a few mods to increase the spindle overhang.

 

Phil.

[mattinker]

David

Very nice build!

Phil,

Have a look at the "Bonelle" it's made from bar stock and the plans are free on the web.

http://homepage.ntlworld.com/j.b.d.willis/bonelle_tcg.htm

Regards, Matthew

[philf]

David

Very nice build!

Phil,

Have a look at the "Bonelle" it's made from bar stock and the plans are free on the web.

http://homepage.ntlworld.com/j.b.d.willis/bonelle_tcg.htm

Regards, Matthew

Hi Matthew,

I already have a Quorn on which the Bonelle is based but neither are really suitable for surface grinding.

I also have (what I think is) a Union T&C Grinder but without a great deal of work I can't get a wheel in the correct position for surface grinding.

Do I really need a surface grinder? Having had access to one at work before I retired I miss being able to use one. But I've managed without for 4 1/2 years so..........

Cheers.

Phil.

[unc1esteve]

Philf,
By reversing the motor/spindle and adding a way of moving the workhead, such as a lead screw, I believe the Bonelle coud be modified to to able to surface grind small parts.  I am going to put this on my modification list.

[philf]

Philf,
By reversing the motor/spindle and adding a way of moving the workhead, such as a lead screw, I believe the Bonelle coud be modified to to able to surface grind small parts.  I am going to put this on my modification list.

Hi Unc1esteve,

The Stent still looks ideal for a mini surface grinder. I found a fabricated version of the Stent using round bars for guides a la Quorn/Bonelle but the dovetail version looks more workmanlike.

Cheers.

Phil.

[unc1esteve]

The more I think about it the less I like my idea.  It would be better to make a dedicated surface grinder.

[mattinker]

A dedicated machine sounds like a good idea if you've already got a T&G. I've got a Clarkson MKI which I could use as a surface grinder, but I feel I'd really need to surface grind something to go through all that hand feeding!

An interesting project, keep us informed!

Regards, Matthew

[Fergus OMore]

In a bit of correspondence to one of you, I mentioned that putting a magnetic table on a Clarkson is my  'norm'.

However for those with a Quorn, Philip Amos did a write up and fitted his grinding bit of the machine to a mill.

Again, the Stent 'pillar' will accept the Quorn or its own stuff to act like a vertical slide on either the lathe or the mill or even a shaper.

As a bit of an aside, the Stent is calibrated whilst my Clarkson 1 has no such additions.

Hope this helps

N

[unc1esteve]

Phil,
What would be the needed x-y-z travel?

[philf]

Phil,
What would be the needed x-y-z travel?

I haven't given it that much thought but I have a 200mm x 100mm magnetic vice so I imagine minimum travels x - 250mm; y - 120mm; z- 150mm.

I have the basis of a floor standing machine which could give me x - 350mm; y - 150mm; z - 300mm.

Cheers.

Phil.

[Meldonmech]

Hi Guys

                           Thanks for all your comments

                                                                         Cheers David