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Member postings for John Reese

Here is a list of all the postings John Reese has made in our forums. Click on a thread name to jump to the thread.

Thread: rolling brass strip in the lathe
14/01/2020 22:42:35

You could probably roll it around a mandrel like winding a spring. I think a simple roller on the toolpost would work to form the dtrip to the mandrel.

Things to consider"

Are you roiling it the easy way ao the hard way? If the hard way the material may try to twist.

Allow for spring back. The mandrel will have to be undersized.

You will be rolling a helix. Can you fet it flat enough afterwards?

Does your lathe have the balls to pull it off?

Thread: Can anyone recommend a cutting disk for cutting aluminium?
13/01/2020 21:45:04

Triple chip saw blades are great for Ali. Actually almost any wood cutting blade works.

If you areusing an abrasive disc on aluminum select silicon carbide abrasive, commonly used in concrete. The AO discs have strong grains that don't fracture and break away hence the load up and quit cutting Ali. SiC blades have very sharp grains that are brittle and break down in use. That keeps fresh abrasive exposed.

13/01/2020 21:39:37

I have an Evolution Rage3 that is intended for metal cutting. The primary fratures of the blade are negative rake and a depth of cut limiter ahead of each tooth. I wanted to put a fine tooth wood cutting blade on the saw. The blade was a 5/8 bore and the saw has a 1" arbor. I set the wood cutting blade on 1-2-3 blocks and clamped it down. I indicated on the center hole and started boring until I got to 1".

Thread: Converting guillotine from manual to air power.
13/01/2020 12:32:31
Posted by David George 1 on 12/01/2020 09:08:38:

Have you thought of using an Air oil converter to make hydraulic pressure which is more controllable. You just need a double cylinder with air pressure to compress the hydraulic oil which in turn operates the cutting cylinder.

David

Definitely air over oil. Throttle the oil going into the cylinder.

Thread: Timesaver lapping compound quandary
09/01/2020 02:07:01

Does this help?

Timesaver comound

Thread: New legislation that could affect us all.
09/01/2020 00:48:56
Posted by Grindstone Cowboy on 08/01/2020 10:41:45:

ISO 100-R011 - at last, something to make people do it the correct way. Which is, of course, paper feeding downwards from the wall side.

Edited By Grindstone Cowboy on 08/01/2020 10:42:38

NOOO I hate trying to pick up the end of paper from the blind side of the roll. That damned standard must have been written by women.

Thread: Have a look at this, view from the chuck
09/01/2020 00:44:40

The camera lens was eccentric as was its owner.

09/01/2020 00:43:25

Gave me vertigo.

Thread: Looking to buy a better toolpost
05/01/2020 23:58:27

Go for the Arc provided its dimensions (dovetail is most important) are close to those of Aloris. They are quite forgiving of the dimensions of the dovetailed tool holders while still giving excellent repeatability. Extra tool holders are very inexpensive. The Warco style requires the Vs be precisely spaced and parallel for repeatability. I doubt the Asian manufacturers will maintain the level of precision to allow you to buy replacement tool holders that fit properly.

Thread: Jones and Shipman boring head
05/01/2020 23:45:02

Can you find a face mill adapter with a big enough flange? You may have to run the bolts into tapped holes if there is no space for a groove for the thin nuts.

Thread: Keyway Broaching
05/01/2020 03:24:58

I do my broaching on a 3 ton arbor press. Before I had the arbor press I used the spindle of a 21" Royersford camelback drill press. Your frirnd's hydraulic press should work beautifully. Be sure to back off thr ram periodically to allow the broach to re-seat itself in the but. That will prevent the broach leaning outward and resulting in a tapered keyway.

Thread: Alexander master toolmaker
05/01/2020 03:16:14
Posted by David Colwill on 22/12/2019 07:48:37:

On some tapered gib arrangements there is a screw on each end of the gib. These are used to keep the gib from moving once set. If it isn't properly held it can act as a wedge and I would suspect that this is what is happening on your machine. Try to find out how the gib is secured and back it off. If that frees it of readjust and try to look for movement of the gib when moving the slide.

Regards.

David.

If the gib had only one screw it was common practice to have a slot in the head of the gib that surrounded the head of the screw. That prevented the gib from moving inward and locking the slide. It id possible the head of the gib was broken, losing the slot.

Thread: How to lubricate pulley shafy bearings?
05/01/2020 03:02:06

In all probability the screws are Whitworth. If built in England it would not likely have UNC threads. If you want to use UNC the proper designation would be 10-24. The 3/16-24 was a stove bolt thread that went obsolete many years ago, about when coal stoves in kitchens fell out of favor.

Thread: Jones and Shipman boring head
05/01/2020 02:45:44

It would be a fairly simple job to make a straight shank adapter so it could be held in a 30 taper rnd mill holder.

Thread: Odd sleeve
05/01/2020 02:40:47
Posted by old mart on 04/01/2020 21:23:35:

Its made in Iowa, so it could be anything. I notice the name is "use em up", I wonder if it is designed to salvage scrap MT3 tapers by grinding a flat on them? It could be worth asking on The home shop machinist forum.

Edited By old mart on 04/01/2020 21:25:16

Careful! Some Iowegians get testy over stuff tile that. If it came from Iowa it was probably made by Collis. They were called Use EM Up sleeves. When the tang twisted off a drill or the taper got too messed up to hold in its socket you could grind a flat on the side of the drill shank until it fit in the Use EM UP socket. I am 82 and have only seen maybe 6. Not common anymore.

Thread: Stanley Blade Lathe Finishing Tool
29/12/2019 20:29:06

I think carving the knight using the band saw has a lot more potential for injury than scraping with a knife blade.

Thread: Enlarging pulley bore
19/12/2019 21:36:38

Those die cast pulleys are pretty cheap. You might consider buying one with the correct bore. How much is your or your soon to be friend's time worth?

Thread: Slight repair required
19/12/2019 21:30:55

I would use oxy-acy using cast iron rod and ferro flux. Normalize after weldinf.

Thread: Toolpost dilemma
09/12/2019 00:51:25

I have two lathes fitted with Aloris clone tool posts. An advantage to Aloris is the availability of extra tool holders at relatively low cost. The Aloris design is quite tolerant of variations in tool holder dimensions. The Dickson tool holders are more expensive to make than Aloros clones. The Dickson tool holders require the C-C distance of the Vs to be exact for it to fit the tool post.

My vote is for Aloris or its clones.

I have a Dickson tool post and 3 tool holders. It sits on the shelf and will remain there until I need a tool holder of larger capacity than the Aloris provides.

Thread: More evidence that the world has gone mad!
07/12/2019 00:16:11

They are all crazy except you and me. Sometimes I wonder about you.

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