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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: Hello, Alexander master toolmaker
21/02/2019 07:52:25

Hi Ali Have you looked at www.lathes.co.uk I used one of these about 50 years ago very versatile but a pain to set up accurately.

David

Thread: J&S 540 Dwell Lever
20/02/2019 22:49:30

This is the current spares department info for Jones and Shipman grinders

Spare Parts Tel: +44 (0) 116 201 3035
E-mail: spares@jonesshipman.com
Service & Support Tel: +44 (0) 116 201 3047
E-mail service@jonesshipman.com
Fax for Both: +44 (0) 116 201 3049

David

Thread: milling machine
19/02/2019 17:44:23

Hi Martin where is the mill to be seen, just a local town or area etc would be useful. A picture if mill would be helpful.

David

Thread: Vickers Bl 8 inch Howitzer cannon of 1917
19/02/2019 10:56:34

Perfect your attention to detail does you credit.

David

Edited By David George 1 on 19/02/2019 10:57:34

Thread: Another newbie question!
19/02/2019 10:48:43

Lubricate with cutting oil or coolant etc, I use tapping oil RTD.

David

Thread: Hello from Hinckley
19/02/2019 10:44:55

Hi Mike welcome to the forum not to far from you but in north Nottinghamshire J28 M1 if you need any help just ask. As a retired toolmaker / service engineer what are your Engineering interests and making at the moment.

David

Thread: Stepper Motor Controls
18/02/2019 08:21:19

Hi on my z axis I have controlled it with the motor driver two switches and a pulse generator with adjustable speed. One switch to to start wired to enable one switch wired to direction and the pulse generator wired to pulse. I switch on set direction and turn pulse until required speed is set very simple and no programming is required, only my head is there any thing wrong with this setup.

David

Thread: Chester Champion V 16 Z axis mod
17/02/2019 23:12:06

Need to install limit switches to prevent overrun etc. The power supply is under the bench 24 volt and 5 volt signal.

David

17/02/2019 23:08:49

A few pictures of nearly finished job.

20190216_084356.jpg

20190217_082059.jpg

20190217_082139.jpg

20190217_151734.jpg

David

17/02/2019 17:12:17

Hi had a bit of progress with the power to stepper motor look at vid on https://www.youtube.com/channel/UC40QHbhXPF7MyiUT_hacScQ

David

Thread: Stepper Motor Controls
15/02/2019 09:24:57

Have a look at Joseph Noci 1 posts particularly the shaper that returned - in NC style 10/08/2017 it's absolutely fabulous what he has done to the Alba2NS shaper.

David

Edited By David George 1 on 15/02/2019 09:25:42

Thread: Holding in headstock
14/02/2019 22:53:51

Hi Bill just seen the other question about spindle dia. But to hold the cue I would make some extended soft jaws and bore them to the same taper as a cue to give a large surface area and grip true.

David

Thread: New to metal lathes - bore sizes?
14/02/2019 22:45:49

Hi Bill in the past I had to turn long pieces and to prevent wobble of the piece sticking out of the rear we made a tube which fastened on the rear of the spindle like an extension and a ring cam closed down three jaws on to the long piece to hold and prevent run out.

David

Thread: Stepper Motor Controls
14/02/2019 22:30:26

Hi Chris I was in the same position as you about powering my z axis mod and tried a DC motor and speed controller but found at low speed no power and came across CNC 4you talked to them at exhibition bought parts from them and there us a telephone line to call if you have problems. Cnc4you.co.uk is the web site call them and you can talk to them about options and there are all the wiring diagrams to download on line. I am not connected to them at all just satisfied with their help.

David

Thread: Experimental engineer
11/02/2019 08:04:08

Hi Chris welcome to the forum. It looks that you have a varied engineering skill set and your help will be appreciated but if you need any help just ask on here. It sounds like you have a workshop to be envied.

David

Thread: Blacking engraved lines
10/02/2019 18:56:05

On tooling I would use a paint stick by Edding just write over the engraving and then wipe over the top with a paper towel damped with a solvent cleaner. They come in different colours Edding 10 mm broad tip paint marker pen for metal.

David

Thread: Tapered gibs on a mini mill (SX2.7)
08/02/2019 22:54:50

Hi Piotr you can check the gap with feeler gauges and if there is sufficient gap, 0.25mm or more, you can fit a shim to the non sliding face. Cut a shim if the corect thickness and shape, pin by drilling and fitting silver steel pins to prevent it moving and then replace as new.

David

Thread: Overload trip
08/02/2019 21:23:37

Hi you could put a spring loaded disc on the motor shaft which disconnects power when overloaded.

David

Thread: Very soft stretchy rubber grommets, where from?
06/02/2019 22:06:02

Have you thought of splitable cable glands there are a few manufacturer's here's one https://www.icotek.com/en-uk/product-catalogue/cable-glands/

David

Thread: Hi from dorset
06/02/2019 07:35:30

Welcome to the forum you only have to ask on here and someone will be able to help.

David

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