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Member postings for peter walton

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

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Thread: Hints and tips
12/01/2011 19:33:01
You should uncoil extension leads if used at the maximum rating of the cable as its rating is for a flexible cable in free air rating.  Coil it up and should be derated or just get a higher rating unit(more money more copper)
 
peter
Thread: Drilling Hardened Rivet
09/01/2011 23:48:58
Try a dremel with a sloting disk, cut a groove accross the head then use a straight blade screwdriver you only have to turn them a little then grip with Molegrips.
 
Peter
Thread: Miniature welding
09/01/2011 18:50:43
Those oxygen/hydrogen welders had one big drawback - drawback in which the flame would disapear inside the needle, help switch off quick.
Plus the fact that they do not put out much in the way of heat, you could get more heat by bubbling the gas through some meths to put a bit more heat in the flame, still got that bit in the garage but junked the generator ages ago, just to slow and cold!!
 
Peter
Thread: Milling Chucks
05/01/2011 17:56:51
seems to be a good deal on their normal prices.
Not to sure about the quality though, a bit of pot luck!!
 
Peter
Thread: New Year's Resolutions
02/01/2011 15:29:07
Big problem I have in saying what I would like to see in MEW is that is that I do not know what I do not know! if you see what i mean.  I think I am quite savey about most things until I try do something I havent done before and realise there a knowledge void!!
Like the other day I was engraving some dog coller labels in the cnc mill and was suddenly confronted with the 'how do I hold them'.
Some time later I had a simple fixture constructed to hold a tag, took longer than the engraving!
Articles on the construction of jigs would be useful if more than one item was to be produced a jig could be the answer afterall necessity is the mother of invention so they say!!
 
Another problem I have come accross but not seen a true answer to is cupping caused in part by overly zealos use of the vice on the mill.
 
Peter
Thread: increasing milling machine speeds.
03/11/2010 19:45:34
What is the spec of the single phase motor, if it is 4 pole you could fit a 2 pole motor and get double speed.
 
Peter
Thread: Rear mounted tool post
01/10/2010 18:37:16
I always thought the main reason for the rear toolpost was you could leave a parting tool in situe and use as and when required.
A lot easier when doing the odd small run of components.
 
Peter
Thread: Forum Posts Obscured by Advertisments
13/08/2010 15:27:00
Not sure if its applicable to your situation but I have had increasing difficulty in getting some site to display correctly.
I finally bit the bullet and upgraded to IE8(very loath to do it) and it so far(touches wood) has cured all the rogue sites.
Main problem I had is parts of the page overwriting other parts which made on line banking a no no!
 
peter
Thread: Marking out fluid
25/07/2010 08:57:18
Not an answer to the OP but I remember from school metalwork that we used copper solution to aid marking out, anyone know why we used that method.  I dont ever see anyone writing about that, perhaps it was the teachers hangup!
 
Peter
Thread: Cutting Aluminum Sheet/Plate
20/07/2010 08:56:51
The evolution saws can cut metal but it appears that this is limited to thin material.
See ebay listing 370400075055 this shows a large 355 mm cut off saw speed if blade is 1450 rpm.
Another way to cut ally sheet is with a nibler, you can get attachments for drills.  These can cut with little distortion of the sheet but get some ear defenders as the noise is FAIRLY loud!
 
Peter
Thread: Fitting a Chuck to a Rotary Table
15/07/2010 08:55:55
Only problem with all these designs is that the whole stack is getting a bit on the high side which so reduces the work that can be done under the mill.
One just cannot win, what we need is a thinner chuck better still one built into a rotab!
 
Peter
Thread: Lathe Drive Motors, 1ph or 3ph?
07/07/2010 21:24:32
One other main advantage of 3 phase is instant reverse when screw cutting not something easily done on single phase.
As any rotation left on the motor when you flip the switch then it will still motor in the same direction or as I found out blow the capacitor!
 
Peter
Thread: 1" belt@disc sander
29/04/2010 08:22:02
You also need to look at Aldi adn Lidl as a source of material as some oft their products are a cheap source, think outside the box as it were.
Also try car boots, I used to think it was a bit off to just hacksaw something up for the brass etc, but with the prices of stock you just have to do it!
 
peter
Thread: "Foundation" book has got me worried
26/04/2010 13:13:32
I have gone down the cover em up path, all large lumps of steel, lathe mill drill etc get cover after use with as thick a cloth cover I can find.  All other bits and bobs go into wall cupboards and drawer units.
The problem with condensation is not the lumps of metal in themselves rather the fact that they cool down faster so covering them up slows their cooling rate but you will then have to have some ventilation so that the moisture in the air is equalised to that of the outside air.
You could also try dehumidifier but that will only work down to about 2-3 degree C mind you if the temp gets much below 0C then I dont think you will have any problems as the air should be getting dry.
 
Peter
Thread: 2 questions - threading silver steel; tightening bar in the chuck
14/04/2010 22:11:13
double post

Edited By peter walton on 14/04/2010 22:11:38

14/04/2010 22:11:10
HI
Silver steel rod is always supplied in an annealed state, so thread and then harden and temper if needed.
Never heard the one about jacobs drill chucks, heard it about lathe chucks as they have a scroll which can have play after some years of use(abuse etc)
My take on the chucks is, tighten up fairly hard but not excessive, do the machining or whatever but make sure you do it all at the same sitting so I see no point to the tighten in all holes etc.
If the work need to be replaced use a 4 jaw independant or a collet chuck.
 
peter
Thread: Handle length for Adept No.2 bench shaper.
10/04/2010 11:55:06
Hi Harry
I sold one of those in 2005, I think it had the original handle and it was about 18" long and did look as if it had just been made from a mild steel bar.
 
Picture doesnt show complete length but best I have.
 
Peter
Thread: Is the 4" Rotary Table at ArcEurotrade better than SOBA ?
03/04/2010 12:48:07
On my micro mill (X1) when a chuck is mounted on my 4" table there is not a lot of room left of the Z-axis so much so that I am considering raising the whole column.
Its ok with the rotab horizontal its just that all the bits joined one upon another doesnt leave much room for the cutter and work piece.
I even have to put the cutter in a morse collet so as to leave enough room.
 
Peter
03/04/2010 08:44:28
I have the 4" Soba purchased from Cronos, with which I am reasonably satisfied. Not sure I understand how the pinion broke.
I converted my one to stepper drive for use as 4th axis on my mill, a very trying experience so if you want to convert the table I for one would recommend the Arc-euro unit as that has certainly been converted in a much easier fashion and can be purchased already converted and at a reasonable price considering all the work mine entailed, I wich I had gone that route!
 
Peter
Thread: sieg X1 micro Mill
30/03/2010 08:19:41
Hi John,
I have fitted ballscrews to my X1 and as you say it is a bit of a squeeze especially for the X axis nut.
Not sure about fitting the Arc-Euro ballscrews as thay have a flange which is about 26mm high and will not go in.
The ballscrews I used are the RSW ones from Marchant Dice http://www.worldofcnc.com/products.asp?recnumber=69 the only problem with them is that they do not have wipers.  I have since found that the RSW type can come with wipers.
The other problem I had was that of machining the Y axis to take the ballnut fixing for the X axis as I only have the X1 mill, to that end I obtained a spare Y axis casting from the States.
I dont have any drawings or pictures, all done on the fly I'm afraid.
Biggest problem I had was in machining the ball screw ends and threading them ,baptism of fire was no exaggeration.
 
Peter
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