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Member postings for Circlip

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

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Thread: Old lathe, chuck accuracy
27/01/2010 12:01:02
Surprising how many three jaw chucks have been distorted over the years with the application of a "Tube Lever" on the end of the chuck key.
 
  Small point Mark S3, if using a three jaw, put in bar bigger than you want to finish with and turn down all diameters to finished sizes and part off.
 
  Three ways to turned accuracy and non using the three jaw as a refference:-
 
   Between centres,
 
   Collets,
  
   Four jaw and "Clock"
 
  Regards   Ian.
Thread: clack valves
27/01/2010 11:49:40
You should never need to burnish valve seats. Used to watch with some amusement people hanging onto valve stemswith a drill chuck and rotating at high revs to get four stroke valves to seat/seal, grinding paste all over and recessed valve heads, DOH!
 
  Regards  Ian.
Thread: Milling Tools
25/01/2010 13:05:01
Hmmmmmmmmmm, BIG cars used to have a similar effect.
 
   Regards  Ian.
25/01/2010 09:48:34

"A Stuart 10 which you can knock off in  3 or 4 longish evenings and bits only have to fit where they touch and it will still go OK, has THEM drooling as it runs on air."
 
   Whom Meyrick???
 
  The pleasure I get from the hobby is for my own satisfaction, the toolmaking part is a means to an end and part of the experience. God forbid that THIS site degenerates into the likes of many of the American "Tool Gloat" and sicofantic praise trawling Fori.
 
  Can't understand how so many can extol the virtues of EVERYTHING from the far east and then decry that homeland manufacturing is disappearing and weep bitterly.
 
  Yes, not everyones boat, but the challenge is to my own (Or lack of ) skills, but I never cease to wonder at some of the efforts made long before the advantage of todays multi tooled workshops.
 
   Regards  Ian
Thread: clack valves
25/01/2010 09:28:06
1 ESSENTIAL tool Nigel, a "Punch" made from a piece of bar whose diameter is a sliding fit in the clack body. Centre one end to allow a ball to be accurately centred when in the body. On a FRESHLY faced seat, put the ball in the body, place the "Punch" in to centralise the ball and give ONE slight TAP (NOT Tubular Bells) on the punch end. Remove punch and ball, fit NEW ball and you should have a good seal, if not, RE-CUT the seat and repeat. Too many think that a crater is required for a seal.
 
  When re-cutting the seats you should only need to remove Thous (Single figures)
 
   Regards  Ian.
Thread: Torx screws
24/01/2010 18:43:11
If they have a C/S head, beware as it won't be a standard C/S. You may have to machine it.
 
  Regards   Ian
Thread: Crompton Parkinson Motor Bearings
24/01/2010 18:25:11
"Oilites" can be machined but you have to be aware of "Smearing" the surface. Sharp cutting tools will do it OK as long as you don't allow rubbing. To re-oil the bushes, immerse in heated oil and keep at temperature to allow the bush to re-absorb oil and then allow to cool down while still immersed.
 
  One problem you may find is that the bearings will contract slightly when fitting into the bore of the end caps so a machined bore may be a tight fit if 17mm outside the housing.  Seem to remember machining sizes being shown somewhere, have you tried "Glacier Metals" site???
 
  Regards  Ian.
Thread: Speed and feed rate for 1 1/4" Carbide Index tool?
23/01/2010 11:32:13
Wish there was a thumbs up Smilie on this Forum Eric.
 
   Regards Ian.
23/01/2010 10:59:00
How would the machine cope with 1066RPM and 1/4" depth of cut??
 
   ------- Walkies???
 
     Regards   Ian.
Thread: PTFE Plastics
23/01/2010 10:51:23
To ask and answer your own question Terryd is double indemnity
 
  If the load was centralised over the whole diameter, you would probably get away with a THIN PTFE washer, same stresses apply to a thrust race, but they are more resistant to deflection although localised contact.
 
   Martin W's answer of face to face is the best one (See MEW Issue 1 pull out plan for the rounding over rotary table). Got any Kn*ckered taper roller wheel bearings??
 
  Face to face contact fot the table part and taper roller spindle. You KNOW you can machine to microns.
 
  Regards  Ian.
Thread: Student in need of help!
22/01/2010 17:44:05
One you may not have heard of in these times of white hot technology Alexander is "Yellow Pages",  bit slower than the keyboard but uses less electrikery.
 
  Regards  Ian.
Thread: Stuart 10H and Score
22/01/2010 17:36:10
Might be worth checking that all the machined faces and the bore are square and true to each other David, boreing using the 4 jaw to hold the cylinder may be a bit suspect. Hope it is true.
 
   Regards  Ian.
Thread: cutting 6BA thread on bronze bar
21/01/2010 18:24:49
Find me a pin and an egg Chris and I'll show you a trick, can't do the loaves and fishes one though, ---- well not YET.
 
   Regards  Ian.
21/01/2010 14:02:21
If the die is of far eastern manufacture, take to the local lake and hurl it as far as possible.  Bronze is a tougher material (Especially Aluminininium Bronze) and if you've checked everything the others have said, make sure the diameter of the bar is NO GREATER than the finished screw O/D and has a lead in chamfer.
 
  Got the die in the holder THE RIGHT WAY ROUND?????  Maker and size stampings on the OUTSIDE??  Yes, I know, but some don't.
 
   Regards  Ian.
 
  And just as an edit, AND likely to start a fire, instead of sticking the die in a tailstock holder that MAY not be truely on centre in all directions, when you get down to 6BA and such, why not a normal die holder and a pressure pad on the tailstock??

Edited By Circlip on 21/01/2010 14:06:13

Edited By Circlip on 21/01/2010 14:06:45

Edited By Circlip on 21/01/2010 14:07:10

Thread: Speed and feed rate for 1 1/4" Carbide Index tool?
21/01/2010 13:50:02
Don't forget the NUMBER of teeth on the cutter Alvin.
 
  Regards  Ian.
Thread: Tachometer design
21/01/2010 13:36:14
The only "Dealing" in future Lawrie is likely to be the application of built blocks rather than the "Kits of bits" we used to use. Thanks to S/m's the pre requisite for construction is a microscope and a very fine tip on the old gas heated lump of copper.
 
  Regards  Ian.
 
Thread: bonded crankshaft
15/01/2010 16:52:13
Beef in preference to Lamb.
 
   Regards Ian.
 
 
  Any chance of a spull chuck David DC1  ?????????????

Edited By Circlip on 15/01/2010 16:55:08

Thread: Workshop Heating
15/01/2010 16:48:14
"Duck Oil", same as WD but was half the cost. Thing with WD is that it's a Water Dispersant, not a long term protective.
 
   Regards  Ian.
Thread: Brass Shell Case
15/01/2010 14:49:53
Circlips' shell case was converted in reply No5 and was done thirty years ago, the 20mm and .303s about 48 years ago.
 
  We wait with baited breath to hear how "Niloch" does with his.
 
  Regards  Ian.
 
  (Post numbers would REALLY help DC1)

Edited By Circlip on 15/01/2010 14:51:30

14/01/2010 19:47:09
Sorry Chris, one telescope maker and two ashtray makers have nowt to prove.
 
   Regards   Ian.
<< First < Prev 68 69 70 71 72 73 74 75 76 77 78 Next > Last >>
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