gundrilling, and old ME articles sought

[des bromilowParticipant @desbromilow43838]

really two enquiries..

 

Firstly, I believe there was a recent article covering gundrilling in ME… can someone tell me the issue number, and tell me if it’s worth getting? I’m planning on making a version of the myford clutch, and need to bore the shaft for the actuating rod.

 

Secondly is a more general question…. What is the status of the zillions of ME articles which used to be on the web by JWE? I know the lawyers from Magellica shut him down (despite the agreements with the previous publishers of ME), but the version I received was that JWE had to shut down his digital archiving, and the original scans (with varied quality of OCR) was given to magellica to help populate the article reprint library. I was jsut wondering if this was still happening, and when/ where we;d see it, since JWE’s work was a veritable goldmine, and my only regret was not saving a copy when I had the chance.

 

Des

[des bromilowParticipant @desbromilow43838]

[Richard ParsonsParticipant @richardparsons61721]

The original article was interesting in that it describes the experiences of an apprentice at BSA.  The basic production gun-drill consists of a drill face (usually a diamond shape) which has one or two small holes in it.  This is set into a hollow ‘V’ shaped tube.  The hollow part contains oil (under pressure – between 200 to over 1000 psi-).  The oil squirts out of the small holes and drives the swaff up the ‘V’ grove.  The rest of the system is an oil pump a ‘catcher’ which gathers up oil and swaff mixture, a separator to separate oil and swaff and recycles the oil. Nuff said.  You can do the job by using progressively longer series of drills and Peck drilling.  I use ‘pecks’ of the same length as the diameter of the drill.  Try drilling a 4” long 0.075” diameter hole down the barrel of a 1/10 scale musket. –Eek!

Your best bet is to do what Myford probably do, search the internet for a thick walled tube.  It is much easier and will cause you much less perspiration and cost.  The cost of a very long series drill is astronomic.  You can make them but that is another tale.

[Axel BentellParticipant @axelbentell]

No intention of being a smartass, but publishing this goes really very much agains the policy not to have gun model´s in the mag….

 

 

[David Clark 13Participant @davidclark13]

Hi There

What has gun drilling got to do with articles bout guns?

Gun drilling is a process for drilling long parallel holes.

It is a legitimate tool for use in any engineering environment.

It does not have to be used for drilling gun barrels.

regards david

 

[Axel BentellParticipant @axelbentell]

My point is that the barrel is the most hard to get part of a gun (its the most important part), and if you dont want too instruct people how to make them. It would be a good idea to not print articles that deals specifically about this, even though its a process that is useful for many other things than gunmaking! 

 

 

[Axel BentellParticipant @axelbentell]

If the Editor allows I can reccomend a few texts on this subject, but I wont post them w/o consent, since they are gunbooks. The Editor removed links for such content before (and he has every right too).

[des bromilowParticipant @desbromilow43838]

I’d like to say I didn’t expect, or desire to cause any hassles by asking what I thought was a fairly innocent question. I know some people/agencies get a bit freaky concerning firearms.. politics aside, their impact is all around us in various forms from the terms we use, the methods we’ve gained for manufacturing, and even in feminine hygiene.

 

In my search for suitable pipe in the area, the best bet so far is reusing the hollow spindle axles from bike axles… not the best but I’m seeing if it will work.

 

Speaking with people with large collections of ME issues, there has been articles in the past based on D bit drills, so that’s where I’ll head for the next attempts. I’ve had to temporarily shelve the clutch issue whilst I rebuild my lathe motor/ drive set up –  previous damage from removalists – the repair held for 5 years, but has started to let go.

 

 The vulcans had the saying of “live long and prosper”

– I think the ME saying should be “may you have enough time and money to finish all your projects”

 

Des

[Richard ParsonsParticipant @richardparsons61721]

 

David,

The problem is in the tool’s name. It uses a word which causes All forms of ‘Authorities’, local Safety Managers, the local police, other long noses, who have no business to stuff their oars in but do so, to have the heeby-jeebys and act. This causes problems which will cost the ‘victim’ a lot of worry, heartache, loss of freedom and expense. In the eyes of these folk, for an ordinary citizen to have any knowledge of these things, or even things which are sharp, should be totally forbidden and those who have such knowledge be locked away. One very prestigious museum I know of had to remove all its extensive collection of very old examples of these things from public view. You can only see them by appointment and then only after, I understand quite extensive police checks.

I would suggest that the forbidden name and its associated names (which are also not to be mentioned) are not to be used.  The tool should be re-named as an “Extra deep hole making device”.  We are Model Makers, Engineers or Artificers we are not lawyers so it is best to steer well clear of such things altogether.

Finally it is not illegal to make any form of thing that looks like the ‘thing we must not mention’ so long as it cannot give fire or be EASILY converted to do so. You try telling them that! they will throw away the key.

[David Clark 13Participant @davidclark13]

Hi Axel

If it is for a genuine model engineering process, it is not a problem.

regards David

 

[chris stephensParticipant @chrisstephens63393]

Why are the authorities worried about model engineers and their possible abilities to make things that fly at great velocities, when if the press are to believed, you can buy such things on the streets of South London without he risk of getting metal splinters in your fingers?

chriStephens

[Axel BentellParticipant @axelbentell]

It describes how to drill ream and rifle a bore.

[KWILParticipant @kwil]

Why do we not call it something else?  A tool for drilling deep holes? In fact it does not matter what you call it, it can be used for all sorts of activities. After all electricity can be used for torture as well as casting light upon a subject. (or should that be the subject?)

[DMBParticipant @dmb]

Hallo Des,

For ME indexes, go to http://www.groundlevel.demon.co.uk

OR, Guy Lautard did a Technical Index of ME articles. There is also a spiral bound red covered book indexing a certain period of ME produced, I think, by EIM publishers, TEE Publishing.

John

[Anonymous]

Here’s an article on how to use a gun drill, it’s by no means simple:

 

http://www.practicalmachinist.com/vb/general/gun-drilling-lathe-192962/

 

I hope the link works, first time I’ve tried posting a link!

 

Regards,

 

Andrew

[Billy MillsParticipant @billymills]

Thanks for the link Andrew works fine.  Spent a few moments trying to work out how it cuts, think I see it now. The clearance Vee takes the chips and oil away, one edge of the vee forms a cutting edge to sweep the outer part of the bore. The oil hole sweeps over the centre- it is way off centre so it removes metal left by the vee edge- it is the edge of the oil hole that is the inner cutting edge. ( like the cone-with-a-hole de-burring/ countersinking cutter) Is that right? It would have to start cutting in a bore as it is initially unguided by a point or chisel.

 

Regards,

Alan

[Author]

Posts