Drill or mill?

[goldstar31]

I'm sure that the 'Brooks' will perform well. I've got a fabricated Stent also gathering dirt and rust!
For our American cousins, Martin Models? still has some Mark 2 Quorn castings left and with the availability of construction details and plans etc( albeit about £60) it should be possible convert /machine the castings to the new Mark 3 a lot easier than what I'm doing. There is a LOT more dividing and graduating but the results look immeasurably better.

Back to the 6x4 bandsaw, I've done little alteration on mine but would mention that blades can be bought 'over the counter' from ToolStation.

Dare I divert from this and that exhaustive diatribe about that milk-shaker thing? It was an old Waltham watch which certainly hadn't been used since 1938- and possibly earlier. Not only did I have it cleaned and adjusted after all those years but got an expert valuation. WOW!
So I'm wearing it on the waistcoat of one of my morning suits.
So art from a huge dentist's bill and - the taxman and my adviser, the week has gone surprisingly well.
So back to doing fiddly repairs( and rust removal!!!) on my long discarded Quorn.

I do look forward to the outcome on the nice little Brooks

Cheers

Norman

 

[xpylonracer]

A good method for drilling is to use a 120 or 90deg Spotting drill for starting a drilled hole, unless of course you want to locate a fixed or live steady when the conventional 60deg centre drill has to be used.

xpylonracer

 

[TSutrina]

After fooling with a Chinese boring bar set for half an hour and getting crappy results, I finished it with a 1/2 in drill in the lathe tail stock and the results were very good.
Did a second one by progressively drilling a larger hole after starting with a center drill and that went smoothly as well.

View this youtube 'A Boring Rant.' He says the Chinese heads are reasonable with the set screw and adjustment screw of soft material. Replace the set screws. The Chinese carbide boring bars are crap; soft metal not tool steel, carbide not on the axis for the nominal zero rack position. the shank dents and could rotate be the set screws Suggest buying a few to one good bar for the same price; tool steel proper position carbide insert flats to the set screw properly positions the tool.

 

[John Antliff]

This is my Quorn T&C grinder which was my first project before I retired 10 years ago and it took me the best part of 3 years to finish. It has enabled me to produce custom cutting tools and to keep on top of sharpening most of the other tools that I use in my hobby of 7 and quarter inch gauge steam trains. It is the standard Quorn with a longer bed and a few modifications to improve the usability and rigidness. I bought the castings on a whim for $40 NZ at an auction because no one else wanted them! Best buy ever but a very challenging first project indeed for a career IT specialist!

 

[goldstar31]

A really fine tool. Thank you for publishing it

 

[bobden72]

Nice