Grinder for end mills and drills

[Martin 100Participant @martin100]

Posted by Hopper on 23/04/2016 05:25:18:

If you want something a bit more like a professional Clarkson or Deckel type unit, google "Stent tool and cutter grinder". Not sure where the plans for that one are available.

Blackgates, I've a set kicking around on my bookshelves from a decade or more ago in an anonymous brown envelope, they were possibly unfolded and viewed on a clean table top, then filed away. They also sell the castings.

If, and it is a very big if, I could find the drawings I'd be happy pass them on as a freebie to someone who could make use of them. All I've turned up so far in a 5 minute search is an SLR camera service manual and a few odd drawings of boxford bits. I know they haven't been thrown out!

[Tony BrockParticipant @tonybrock51753]

There was a series in MEW starting September (I think) 2001by Raymond McMahon. I built the unit and it's served me ok. There was an amendment in a latet article where a thin wedge was added behind one side of the setting ring. It does not do drills though.

Tony

[norman valentineParticipant @normanvalentine78682]

I am surprised that in all of it's years existence that there has not been a tool and cutter grinder design featured in Model Engineer. Or at least nobody has mentioned it, there were suggestions from MEW but I don't have a collection of those.

Anyway the problem is resolved, I found a part machined set of castings and other materials for the Quorn. This will be an interesting project!

Edited By norman valentine on 20/05/2016 19:43:00

Edited By norman valentine on 20/05/2016 19:43:17

[geoff warnerParticipant @geoffwarner]

the tool and cutter grinder that seems to have been overlooked is the brooks mew 16 and 17

[Neil WyattModerator @neilwyatt]

Posted by norman valentine on 20/05/2016 19:42:33:

I am surprised that in all of it's years existence that there has not been a tool and cutter grinder design featured in Model Engineer. Or at least nobody has mentioned it, there were suggestions from MEW but I don't have a collection of those.

Well there's the Quorn itself, of course, plus the Stent. Alex Farmer did a 2-part article with plans for a simple 'universal tool and cutter grinder' in 1961, D.H. Downie and D.H. Culling described a tool grinder in 1968 and Martin Cleeve offered a wonderfully simple little design in 1956 That's five, plus dozens of designs for bench grinders, tool sharpening guides etc.

Neil

[ManofkentParticipant @manofkent]

I recently saw an old industrial pantograph. Grinder bolted to one table, drill holder to the other, pantograph fixture out of the way. By moving each table forward, back, up and down perfect angles were obtained for drill sharpening.

Plenty of cheap pantographs around these days now that cnc has taken over.

Just a suggestion.

[norman valentineParticipant @normanvalentine78682]

That's the point that I was trying to make Neil, nobody, including yourself, suggested the other articles except for Thor who mentioned the Quorn. I was looking for something simpler than that but finding this set of castings that are half done has made it a viable project for me.

 

Edited By norman valentine on 20/05/2016 22:18:10

[julian atkinsParticipant @julianatkins58923]

This reminds me of an old dear friend long since departed Albert North of the Chichester club and IWMES.

'Julian, all my end mills are getting blunt what should i do?'

'Buy some new ones' I replied.

Instead, Albert spent 2 years building the 'Quorn', then never used it.

Cheers,

Julian

[norman valentineParticipant @normanvalentine78682]

That is one of my worries.

But the pleasure is in the making. Not necessarily in the use thereof.

Edited By norman valentine on 20/05/2016 22:59:59

[John PParticipant @johnp77052]

Posted by Julian Atkins

This reminds me of an old dear friend long since departed Albert North of the Chichester club and IWMES.

'Julian, all my end mills are getting blunt what should i do?'

'Buy some new ones' I replied.

Instead, Albert spent 2 years building the 'Quorn', then never used it.

Julian , what a shame to have spent the time making and then not to
have used it ,one can only hope that the new owner of the machine
appreciated the effort put in by your friend.

Norman, stick with it and get a copy of the D H Chaddock Quorn book as it
has the build and operational notes.My own machine has been operational
for nearly 30 years now and is used all of the time .
Eventually over time extra parts can be made ,one such is for grinding 4 facet
drills ,this took much inspiration from DAG Brown's methods and adapted
for the Quorn and was made about 15 years ago.
Seen here in the album Quorn and cnc cutter grinder a 4 facet number 62
drill, this is as much about eyesight and setting up as i can get to now.

John

[norman valentineParticipant @normanvalentine78682]

Thanks John for the encouragement. I have all of the ME mags that detailed the construction. I have been reading them through the construction as a starting point. When I bought this set of castings I hadn't realised how far the previous constructor had got. My task seems easier than I had thought but I have to do justice to his work.

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