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Member postings for elanman

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

Thread: Indicator
24/03/2022 20:58:20

DTI, Indicator or dial indicator????

Where I was an apprentice they were all just known as a "clock". LoL.

Cheers

John.

Thread: Releasing a corroded stud (steel) passing through a casting (aluminium)
18/02/2022 17:02:54

Over twenty years ago now but I used Diamant Boart, they seem to have moved to Leeds but may be worth a call. Another firm I looked at at that time was Major diamond supplies who are still going and in Northampton. They do make core bits.

Cheers

John

Edited By elanman on 18/02/2022 17:03:35

Thread: Grinding cylindrical HSS for lathe tools
07/01/2022 19:31:26

Way back when I was an apprentice we would use round blanks for small (say below 3/8in dia) boring tools and I still do. If you start with a round piece you've got less metal to remove to make the tool.

I would not normally use a round blank for external turning. One of the times I would use such a tool is the using up of a broken end mill to make a special (one off) tool.

Chris, no I would not grind a flat, just position by eye. Hold the tool in a V block or split square holder.

Cheers

John

Edited By elanman on 07/01/2022 19:34:19

Thread: DRO's and mental agility
22/12/2021 14:11:51

I have a 2 axis on my lathe and a 3 axis on my mill, I would not be without either of them.

On a lathe to get the best out of it you do need one with tool tables on and a good QCTP with a fair few tool holders. That way you can change tools, tell the DRO which tool you are using and away you go, once it's all setup. Very useful if you are working on a job that you need ten of.

Others have said what's good to have on a mill.

Cheers

John

Edited By elanman on 22/12/2021 14:12:22

Thread: Warco GH Universal mill help
22/09/2021 19:34:59

The first thing I'd do would be to measure how much torque is required to move it with the aid of a lever and spring balance. Then I'd look at what options there are to achive this torque. What size gear box might be needed in order to use a smaller motor? Then it might depend on how much you want to spend.

Cheers

John

Thread: DRO scale Modification
19/09/2021 08:41:49

I have shortened a glass scale, but not a chronos one so you may need to adapt the method.

On the end that you are going to chop off, remove the end piece. Slide the read head to the other end. Fill the scale with cotton wool or tissue to try and stop grinding dust into the read head. Slide this packing upto the read head making sure that it's past the cut point. Mark the cut point on the outside case of the scale. I used an angle grinder with a 1mm thick cutting disc. Cut it so that the glass is supported by the metal in the direction that you are going to cut. Then go for it. Take it easy and do not force it though.

Just stick the end piece back on with sealer.

Best of luck.

Cheers

John

Edit , I see some has typed faster than me and posted a better desciption with pics.

Edited By elanman on 19/09/2021 08:45:15

Thread: BA sizes
11/05/2021 13:36:35

Are some of the nuts made with the one size smaller hex bar to make the nuts look more in scale. So a 4BA nut would be made with a 5BA hex size. Kennions still sell these and also bolts.

Cheers

John

11/05/2021 13:31:07

Are some of the nuts made with the one size smaller hex bar to make the nuts look more in scale. So a 4BA nut would be made with a 5BA hex size. Kennions still sell these and also bolts.

Cheers

John

Thread: Danfoss Pressure Switch
16/04/2021 07:57:20

Another possible option is 1/4 NPT thread. This is .54in O/D * 18 TPI.

Cheers

John

Thread: Unknown Castings Identification Help
27/03/2021 10:43:31

Yes they are DW castings, I think a Mk2 version.

PM me if you really need to know what's what and I can look it up in the build manual.

Cheers

John

Edited By elanman on 27/03/2021 10:45:12

Thread: Harrison 300 Swarf Shield
06/09/2020 13:28:24

Hi Len,

On my M300 it's item 24 in the parts manual but has a different pt no to your suggestion. It is held in place with two small screws that screw into a couple of tapped holes in the bottom of the headstock casting.

Cheers

John

Edited By elanman on 06/09/2020 13:30:52

Thread: What annealing temperature?
05/07/2020 21:30:42

Well I would temper to Mid to dark straw. Sorry I'm old school I don't know what temperature that is. Others may have different ideas.

Cheers

John

Thread: What size lathe would I need ?
28/05/2020 10:37:53

If it's for a Rudge-Whitworth centre lock fitting then they have imperial threads. 8TPI. Oviously if you are going to make everything then the thread can be of your choosing.

Cheers

John

Thread: Warco A2F quill backlash - any pointers?
28/03/2020 13:27:20

Youra,

I did not use any calculations. I also have a Dore Westbury and so copied the idea from that. I made two as the quill is a lot larger than the DW. I do know that I made the springs twice as the first ones were not strong enough.

Sorry I'm not more help but it was a long time ago now.

Cheers

John

25/03/2020 16:52:05

Youra,

Thanks for the link, I've not seen those before.

Cheers

John

24/03/2020 17:35:56

Hi,

I have a 1992 A1S which has the same or very similar vertical head.

I did not like the backlash or the garden gate type return spring. So I fitted two clock type coil spring that pull the quill upwards by the stop block. The springs rotate a shaft that pulls on some shim SS to pull the quill upwards. This removes the backlash and gives a lighter feel when drilling. I also have down feed for boring holes.

I'll try to post some pics to give you more idea.

img_0093.jpg

 

img_0096.jpg

img_0097.jpg

Cheers

John

Edited By elanman on 24/03/2020 17:37:25

Thread: Grub screws for 16 Colchester chuck
17/02/2020 11:00:17

When I had a Colchester I had the same issue, I TIG welded the top of the splits up. They lasted 20 years till I sold the lathe.

Cheers

John

Thread: Heidenhain scale repair
31/08/2019 15:59:59

Nigel,

Yes I have also found the Heidenhain service dept very helpful, but only on DRO display issues. Both times I've had scale problems I've told to use the agents. This was a good few years ago so things could be different now.

Cheers

John

31/08/2019 13:50:01

Be very careful who you deal with, I got well turned over when I sent one of my scales to an Heidenhain agent for repair. They had said on the phone that it would be repairable then when it came to fixing it they just wanted to sell me a new scale. Make sure you get a quote before you get too deep in.

The good news is that EMS-i sell compatible scales with the round plug on. Not super cheap but about 25% the cost that the Heidenhain agents were offering. More important was the fact that EMS-i were really helpfull to deal with.

In this day and age you may well be able to get a whole new setup for no more than the cost of repair of the scale. And if you only have a simple DRO at the moment you will get a lot more features.

I don't seem to be able to paste a link but you can google EMS-i

Cheers

John

 

 

Edited By elanman on 31/08/2019 13:53:08

Edited By elanman on 31/08/2019 13:55:43

Thread: Square Headed Screw Supplier
27/06/2019 07:04:34

When I needed some for my new tool holders I made them out of coach bolts.

Cheers

John

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