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Member postings for David George 1

Here is a list of all the postings David George 1 has made in our forums. Click on a thread name to jump to the thread.

Thread: EN40 nitrided repair
16/09/2019 21:29:09

I had forgotten about ABR welding they were the welders we used after local welder retired and are very good. Explain the job and they can weld it.

David

Thread: Thread Size Help
15/09/2019 22:32:01

8BA could be ok 0.086 " diamiter. (2.18mm)

David

Thread: EN40 nitrided repair
15/09/2019 19:23:40

Hi Ian when we had worn through the hard layer on cams we repaired them with stellite tig welded and if any of the original profile was intact you could grind down the proud weld to match. You will have to use a good welder with previous experience. The man we used retired a few years ago.

David

Thread: Black Bar
14/09/2019 16:31:39

I have EN 40B black bar and EN 32 black bar so beware what you buy and suplier.

David

Thread: Picador Grinding Wheel Flanges
14/09/2019 16:26:26

The last time I repaired a bench grinder I made a steel flange abiut 8mm thick and run true, which was a tap on fit to the shaft with a recess that clamped the wheel on the paper washer and a slightly looser washer the same diamiter to clamp the wheel.

David

Edited By David George 1 on 14/09/2019 16:26:57

Thread: Hints and tips for cutting small(ish) male threads with a die
14/09/2019 09:06:55

Hi again Stuart. To make the centre screw, just grind or turn a point on the grub screw it is about 30 degrees and you should see the gap open when screwed in.

Best wishes

Thread: V-block
14/09/2019 07:14:48

Very good usefull to have a long V block. 

David

Edited By David George 1 on 14/09/2019 07:16:20

Thread: Recommendation for Tool and Cutter Grinder
12/09/2019 20:36:01

Hi all the grinder is a Newing-Hall pantograph engraver grinder and it had a wrecked diamond wheel (great chunk out of it). It was on EBay for £9.00 and I won it for £26.00 and could collect and pay cash. Bought a new wheel and made a proper rest and bobs your Aunty.

David

Thread: Stuck oil filter
12/09/2019 10:00:10

You can get a chain wrench to wrap round and give it a bit more force.

David

Thread: THIN cutting oil - Suds alternative?
12/09/2019 09:57:00

Hi I have a rag which is soaked in slideway oil 68 and when I have finnished I give it a wipe all over gets rid of swarf, dust and I get no rust.

David

Thread: O rings.
11/09/2019 17:13:14

There is a company called airport bearings at Nottingham which carry all size o rings web site www.ABCO.co.uk try them.

David

Thread: Diamond wheel grade for T&C grinding
10/09/2019 18:39:48

You use a diamond wheel dressing stone. It removes the matrix leaving diamond exposed. Just use it when the wheel dosnt cut.

David

Thread: Hello from West London
09/09/2019 15:48:22

Hi Mike welcome to the forum. I worked on many Bridgeport mills in my time and I don't remember any problems with repairing the gear feed mechanism. I hated the quill spring as it needs a bit of ingenuity to get the spring to latch but all the rest was just removing parts sometimes from both sides to get at them. Just look at the parts list and work your way through them taking pictures and laying them out in reverse order to assemble after changing broken parts.

David

Thread: Seeking advice on suitable lathe
09/09/2019 15:36:55

For stainless steel you could buy tubing which would save on material and drilling and use a jewlers mandrel to adjust the size to suit. I don't know in what form that the Damascus  steel comes in but that can be forged using a blank and punching a spike through and then using the mandrel to finish just finishing them on the lathe so any small lathe would do as long as the parts can be held on a mandrel to Finnish and polish.

David

Edited By David George 1 on 09/09/2019 15:38:00

Edited By David George 1 on 09/09/2019 15:38:44

Thread: Recommendation for Tool and Cutter Grinder
09/09/2019 15:21:34

This is what I use to grind small lathe cutters and carbide tips. I could make a small cutter like you would use by roughing it out on the offhand grinder then finishing it on the diamond wheel. 10 to 15 minutes max.

20190427_090312.jpg

I can adjust to suit any angle. It was a engraving tool grinder and cost £26.00 on the net. I just had to make the tool plate rest.

David

Thread: Hints and tips for cutting small(ish) male threads with a die
08/09/2019 18:28:13

Hi Stuart to use a tailstock die holder there should be play in the holder to allow the die to expand when as you tighten the centre side screw with the two side screws undone. the centre side screw has a point which pushes the slot wider and makes the die cut less of the thread and then you just nip the other screws to lock the die. after you have cut the thread you try a nut on and if it is to tight loosen the centre screw and tighten the die up and try again. make sure you are using a good cutting lubricant at all times.

David

Thread: Record Vice Q/Release Trigger Spring
08/09/2019 17:44:57

Have you tried Irwin the manufacturer.

T52EDL Trigger Spring & Nut (fits all sizes) 0734442038047 - 1 14.33 17.20

**LINK**

David

Thread: Just bought an ML7, what should i do first?
07/09/2019 07:42:07

Hi Shaun, Firstly welcome to the forum.

So many questions and there are many people on the forum who will help. It does help if you give your location as local supliers etc can be suggested. There dosnt seem to be anything I have seen that can't be fixed or repaired e.g. the back gear broken. When you start to strip always take pictures and try and take note in what order it helps. The back gear is not for reverse but it is like a low gear to slow the spindle speed ie for screw cutting and the gears on the left are for feed drive to the leadscrew. Have a look on the Myford website as there is lots of information on there like parts list etc. Good luck

David

Thread: EN24T
05/09/2019 22:13:55

Hi Bernie.

I have in the past made camshafts for Triumph and Norton. What are you making them for. I have some EN40B that I used about 1 inch diamiter the camshaft were turned ground and tufrided. I have sent a message see top of page envelope if you are logged in.

David

Thread: Aluminium cylinder, Viton rings
05/09/2019 08:05:12

Hi Bob what grade is the aluminium. it is possible to hard anodise and PTFE coat but you would have to know what grade as some grades don't work well.

David

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