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Member postings for Ian Skeldon 2

Here is a list of all the postings Ian Skeldon 2 has made in our forums. Click on a thread name to jump to the thread.

Thread: HSS or CS taps and dies
22/05/2019 11:01:07

Having read through this thread I will admit that I mostly have and use HSS, I am sure at some point I have broken both CS and HSS through my own fault. I might just give the spiral flute taps a go in the future, I hadn't realised that they would work as a hand tapping tool.

I had a quick look at Presto web site and they are asking to log in before seeing prices or buying taps or drills, do they only deal with companies or bulk orders?

Thread: indexible internal thread cutting tool
20/05/2019 21:55:45
Posted by Roderick Jenkins on 19/05/2019 23:52:53:

I use exactly the same tool from RDG. Generally I get good results, usually winding the spindle by hand. Tougher materials like silver steel do tend to have a burred up finish which needs a bit of work afterwards to clear up the crests with a file. I suspect it is your hydraulic tube that is causing the problem. As has been suggested, you may need a rather more frightening speed to get a good finish straight from the tool. Perhaps the in to out reverse method as advocated by Jason may be the answer.

Rod

Hi Rod,

Yeah I think the tube is made of some well treated steel, the cutter does cut it ok, just that the finish is awful.

I will give it a go over the next few evenings and let you all know how I get on.

20/05/2019 21:51:48
Posted by Emgee on 19/05/2019 23:11:00:

Ian, be aware that you need the designated thread size for each insert as the crest form varies from the small to larger sizes, best to just buy the sizes as needed and you soon build up a number of common sizes, same info goes for different TPI inserts.

Emgee

Thanks Emgee, I will bare that in mind, it does look a bit on the small side for the job I am doing.

19/05/2019 22:30:54

Hi John,

I will have a look at that, currently I have set it the conventional way so that the tip is at the centre of the tube which could well be part of the problem. Sadly the tool holder and insert came with no technical data.

19/05/2019 22:27:50

Hi Emgee,

I think your right, the crest does look and feel sharp. I might have to look at the same supplier that Andrew uses. What is that saying about buying cheap sad

19/05/2019 22:24:05

Hi Nick,

I am afraid that the information is not available for that insert from that supplier. I suspect that the optimal cutting speed for the insert would make internal threading very interesting, although I will see what other suppliers are stating as the best range of cutting speeds for such a tool and give it a go

I am going to see if I have a piece of HSS tool lying around, just in case wink

19/05/2019 22:06:09

Thanks for the quick response Andrew and Mark. The tool and insert was from RDG, in the photograph of the tool used on the suppliers web site it looks the same as yours Andrew, however when mounted it is angled (rotated) so that the head of the tool is about 30 degrees lower than a horizontal position (difficult to describe). The tool is in a fair sized bore and does not apear to be rubbing or fouling anywhere. A good suggestion to try a different material, I will give that go. I will also check if it is full form (I think so).

Mark I thought clearance might be the reason for it but I also thought the insert would have been formed so that the tip geometry had positive (conventional rake).

Indexable inserts were not around when I learned to do this type of thing so I wouldn't be surprised if the poor result is down to poor technique with the tool, I will try small adjustments to tool height to see if that helps.

Once again many thanks to both of you.

Edited By Ian Skeldon 2 on 19/05/2019 22:08:27

19/05/2019 21:22:46

I have a query about an indexable internal threading tool which uses either a 55 degree or 60 degree insert as required.

The tool is one of these

The query is this, when mounted in the tool post the tool and insert sits at an angle of tip down giving a very negative rake angle. I could just live with this if I got a good result using it, but I don't.

I recently cut a 1.25 metric pitch thread using a new 60 degree insert, material was a steel hydraulic tube which already had one end threaded with the thread I wished to cut. The finish on the one I cut was pretty awful feeling very rough and having burrs on every crest. Spindle speed was 240 rpm and results was the same with or without suds. I checked that the tool was at 90 degrees to the work piece and tried various speeds, all giving the same result, am I right to suspect the tool?

Thread: Chester DB10 thread cutting ???
03/05/2019 21:43:18
Posted by Brian Wood on 03/05/2019 10:01:31:

Hello Ian,

That looks like a nice piece of work, thank you for showing us what the collective prodding of grey matter helped you produce as a result.

Regards

Brian

Without the help from yourself and a few others I would have failed to get a satisfactory result. Of course I will still find a few more stumbling blocks with future projects I'm sure. wink

ATB

Ian

03/05/2019 21:40:35
Posted by Mick Berrisford on 03/05/2019 09:04:08:

Nice compact reg tester Ian thumbs up

Edited By Mick Berrisford on 03/05/2019 09:04:40

Thanks Mick. Hopefully it will get lots of use as I still have a few AA's with regs that do not perform well.

Thread: Bridgeport
02/05/2019 18:35:01

Nice mill well done, I hope it serves you well.

Ian

Thread: Chester DB10 thread cutting ???
02/05/2019 18:28:45

img_20190502_180345.jpgI apologise for taking so long to show the components I needed to cut 14 tpi for. Below is the collection of parts the small item was bought in, the other two made by myself. The solid bar still needs to be parted and faced then drilled and tapped to take the guage assembly but it is very nearly done now as you can see in the photo above.

My sincere gratitude to everyone that helped me to get this done.

Ian

img_20190502_175942.jpg

Edited By Ian Skeldon 2 on 02/05/2019 18:39:17

Edited By Ian Skeldon 2 on 02/05/2019 18:39:46

Thread: 2 1/2" Gauge Society Event at South Cheshire MES
01/05/2019 19:07:18

I will try to pop in and say hello if time permits, I only live a few miles away. Hopefully the weather will be kind for you all.

Thread: 1959 Nsu quickly
30/04/2019 19:34:47

Welcome to the forum Dave Corkish, ignore the Comments from Brian he is in a small minority, the larger group of forum users are often friendly and helpful. I can't help with your enquiry but I hope that you do eventually find the information you are looking for.

ATB,

Ian

Thread: Help on a Matador four stroke engine build please.
26/04/2019 21:24:40

I have never built my own aero model engine but I have owned a few Laser engines (and still do), British 4 stroke engines, very reliable and fairly powerful.

I can't say for sure, but maybe you could contact them and buy gears from them? Link below

Laser Engines

Edited By Ian Skeldon 2 on 26/04/2019 21:26:20

Thread: The Workshop Progress Thread 2019
22/04/2019 20:08:29

But what a beauty she is, nice one Jason.

Thread: Bengs 'Karl' Hit & Miss engine.
22/04/2019 19:58:11

Nice engine Andy.

Thread: The Workshop Progress Thread 2019
22/04/2019 15:56:08

Duncan Thanks for the tip, will give that a go.

Jason I love that engine, just to give an idea of the size, what diameter is the fly wheel?

Thread: Workshop insurance
28/03/2019 15:13:31

Thanks to Harry for the link, I have emailed them and am awaiting their response, I will of course let you all know how it goes.

Thread: What Did You Do Today 2019
21/03/2019 12:27:10

Great day so far......

Day off from work smiley, MEW mag dropped through the letter box and shortly after that the Vertex rotary table I bought second hand from forum member David Corner arrived.

David I commend your packing sir and I can't thank you enough for being such a gent to deal with.

Many thanks,

Ian

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