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Member postings for Paul Boscott

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

Thread: What are you building?
20/09/2010 21:05:15
I'll use this thread to give you an update on the extrusion press that I am making. The butt shear is finished and working see http://www.boscott.co.uk 
 
I am still looking for information any thing may be usefull I am putting together a stand to show the pictures I have of the press at the Banbury Model engineering exhibition on 9th Oct 10:00 to 16:00 at St Mary's Church Banbury I will also have on display some of the other models I have made in the past.
 
Paul Boscott
Thread: Extrusion Press
14/09/2010 13:34:33
John
 
Thank you for your intrest I am making a drawing sheet for each part as I go. I have drawn up the compleat press assembled using AutoCad to ensure that the bits wil all fit togeather before I statred to machine any thing
 
Paul
12/09/2010 21:53:30
Just to let you know that progress is being made check
 
 

Parts
 
 

Compleat Assembly
 
I have tested it using compressed Air and it works correctly
 
See for full set of information http://www.boscott.co.uk/modelphotos.html 
Thread: Making studs
08/09/2010 13:17:38
Peter
 
I do as Bogs but use a split threaded brass mushroom and no locknut the flange of the mushroom is against the chuck jaws to the fix the base of the thead in a known positoin then tightning the chuch locks the stud in position the play in the tail stock die holder centers the second thread
 
I find it better to use studs that threaded bar as it makes the hight of the stud independant of the depth of the treaded hole and you can more easly get the two threads above the nut.
 
Paul

Edited By Paul Boscott on 08/09/2010 13:21:53

Thread: David Clark
23/08/2010 17:47:45
Steve 
 
I have arrived a bit late to offer my name as a second But David gets my vote.
 
Paul
Thread: Actual diameter of 13/16" die holder in wrench
11/08/2010 10:59:04
Hello All
 
I am also intrested in the answer to the original question as I made a tailstock die holder with what must have been to much clerance as I spread a die it cracked in two
 
Paul
Thread: Workshop Electrics
07/08/2010 11:31:03
Kwil
 
Unfortunately those of us that think we can complementally do the work get caught in the cross fire resulting from the necessity of protecting the public at large from cowboys.
 
But even I had to borrow an earth loop tester as that measurement cannot be guessed and with out a low enough earth return path an RCD will not trip at the designed speed so as to afford the specified protection.
 
Paul
 
 
Thread: Bead/shot blasting.
07/08/2010 10:41:35
Paul
 
Beg, borrow or buy  "How not to paint a locomotive" I think there is a good write up of the problems surrounding Blasting
 
Paul
Thread: Workshop Electrics
06/08/2010 14:56:35

Chris is correct that you can do the actual work yourself BUT you MUST have it signed off by a qualified person. The catch is if it is not inspected, tested and singed off and there was a problem with it the house insurance would be void.>>

 >>

Paul
Thread: how do you scale up drawings
01/08/2010 18:37:43
Nigel
 
Considering the many hundreds of hours and pounds you will spend to make a good job of such a project I would suggest that you invest in a proven set of correct size drawings.
 
Paul
Thread: Extrusion Press
25/07/2010 20:31:48

Model finish

 >>

How accurately should a model reflect the finish of the original?

 >>

The quandary that I have is that the finish on the actual extrusion press that I am making as a 1/12 scale model is in some places where it did not matter is to say the least is rough some of the parts have been flame cut and the rough edges smoothed of with an angle grinder though the mating faces were surface ground. see http://www.boscott.co.uk/photos.html I have heard the fitters at the time refer to this as Russian tank manufacture (a reference to the system where the finish is only controlled by the actual engineering requirement to minimise workshop hours)

 >>

My question to you as model engineers is should I reproduce the machine as it actually was or should I improve the look of the finish to a better standard?

 >>

Paul
04/07/2010 18:40:19
At last a weekend in the workshop see http://www.boscott.co.uk/modelphotos.html
 

The assembly you see is 5" long
 
Paul
Thread: Can you easly Silver solder to EN1A
04/07/2010 07:51:58
I want to make a steel fabrication to simulate a casting is it practical to machine parts in EN1A and Silver solder them together ?
 
or is there a method more normaly used?
 
Paul
Thread: Diamond tool holder.
03/07/2010 14:07:31
All
Just got a Diamond tool / holder from Eccentric Engineering UK it works very well
 
Paul
Thread: Home page layout
24/05/2010 20:08:06
Seconded
 
Paul Boscott
Thread: Feed Back
15/04/2010 17:59:15

Hello David

The reading of the smoke rings section of ME 4375 prompts this.

I think that you are doing a good Job I find the range and level of subjects well balanced I read the magazine cover to cover adds and all you never know where that little gem that will pull you out of a problem may come from. I have followed the 3D cad articles with interest though I already use AutoCAD for my designs. I like the days out descriptions and the articles about general engineering.

I am in complete agreement with you about the safety side of things whilst not being blasé about the subject practical common sense is just as useful as strict adherence to rules.

So in conclusion just keep doing it as you see it for me you are winning much more that you are loosing 95% - 5%

Paul Boscott

Thread: Scaling Down
03/04/2010 12:09:16
David
 
The answer that I got when asking a similar question was
 
3 1/2" gauge is usually modelled at 3/4" =1ft
5" at 1 1/16" =1ft (although some people use 1"=1ft)
7 1/4" at 1.5" =1ft
 
Somthing that I have done recently that has been realy usfull
(I am making a 1:12 scale model see http://www.boscott.co.uk)
was to draw in the cad system the set of BA nuts and bolts at 1:1 then scale them by * 12.
 
Drawing  the model at 1:1 then when I reduce the model  by 12 the BA sizes will be in place and correct.
 
 
Paul
Thread: Extrusion Press
21/03/2010 08:11:46
Hello All
 
Project on schedule drawings 90% complete and first two parts made seehttp://www.boscott.co.uk/index.html
 
Paul
 

 
Thread: Simpler the Better -what do you use?
20/02/2010 06:40:23
I use auto cad 2000 the main advantage is that there is lots of documentatation It has done all the things that I have been able to think of in 2 and 3D
 
Paul
Thread: Perpetual Motion
12/02/2010 20:14:25
I would like to take this old chestnut down a different route whilst I assume that most of us will agree that perpetual motion can not exist. What about free energy along the lines of something powered by the gravity or light or some other force that is currently not tapped? Not perpetual motion but just a decade or so.???
 
Paul
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