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Member postings for Andrew Tinsley

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

Thread: I may be stupid but
27/06/2022 13:00:06

Mike,

I am well aware that a 3 jaw scroll chuck is a quick and dirty solution to work holding with any accuracy. I quoted the low run out, because it implies that the chuck was manufactured with more than the usual degree of accuracy. The chuck is unused as far as I can tell, so what it would be like after extensive use, I don't know.

Regards,

Andrew.

27/06/2022 11:10:50

Hello,

I have just checked out the single pinion chuck. It is a conventional scroll type and 4" diameter. I don't need to make a back plate as it has a Myford thread!

So screwed it onto the lathe and checked it out with a DTI and different diameter silver steel rod. Average run out was 3 thou, so I am MORE than happy with that!!! I still think it is of Chinese manufacture, no identifier, only a couple of numbers. The finish on the scroll looks excellent, but then all the machining looks very good.

Maybe the Myford thread is a clue?

Andrew.

Thread: FORUM DOWNTIME AND RESULTING ISSUES REPORTING
26/06/2022 20:06:17

The email service on the forum is not working for me. I can send an email to a forum member, but looking in the sent box, the message doesn't appear.

Andrew.

26/06/2022 20:06:16

The email service on the forum is not working for me. I can send an email to a forum member, but looking in the sent box, the message doesn't appear.

Andrew.

Thread: I may be stupid but
25/06/2022 21:15:38

I didn't bother to strip and clean the single pinion chuck as it appeared to be brand new and still in the manufacturers grease. However I am curious to know more about it, so a strip down is in the offing. I will pass on the results.

Regards,

Andrew.

25/06/2022 20:13:38

Hello Dave,

Despite your theorizing, I would lay a large bet that it is of Chinese origin. I am not really bothered if it is good bad or indifferent. I didn't even realize that it had come with a job lot that I had purchased, so not a loss, if it is a load of junk.

My main interest is its single pinion and why it was made thus and by whom.

Regards,

Andrew.

25/06/2022 10:25:38

Thanks Peak 4,

As there is no identifier on the chuck, I would think it is probably Chinese. I must make a backplate for it and see if it is any good.

Regards,

Andrew,

24/06/2022 21:14:11

Thanks Diogenes,

I did wonder if it might be a TOS chuck. I have a conventional 3 jaw TOS chuck which came with an almost identical box?

However I would expect a TOS chuck to have the manufacturers name on the chuck. I would also doubt that TOS would make such a chuck, unless it was for a very special application.

It seems to be quite well made, I expect it will stay a bit of a mystery.

Regards,

Andrew.

24/06/2022 18:05:04

Like Dave Halford, I too have a 5" chuck with a single pinion. It must have come with a job lot, because I only spotted it 3 weeks ago when I decided to clean my chucks, I was very much surprised at this! No name on the chuck and it was in a light blue box with a German language print saying 3 jaw chuck. Looks unused to me, still in makers greased condition.

Anyone know the origin of these oddball chucks?

Regards,

Andrew

Thread: Curiosity about an Aldi belt sander
10/06/2022 21:38:47

Michael,

I do not have any experience with either sander. My adverse comments about the Ferrex machine came from feedback published by Aldi. It was said that the extraction system wasn't good. The quality comments came from another customer who purchased the Ferrex machine . It was returned because of quality issues and the Schepach machine was then purchased. The comment was that the build quality was much better on the Schepach.

Not sure if you can take all the feedback as gospel.

Regards,

Andrew.

Edited By Andrew Tinsley on 10/06/2022 21:40:33

10/06/2022 18:59:12

There seems to be some confusion, there are two belt sanders being sold by Aldi, at the moment A Ferrex one for £90 and a Schepach one for £100 The £100 version is the one I am referring too. Apparently the cheaper Ferrex is not so good and I think the dust extraction on this one is suspect.

Andrew.

10/06/2022 16:36:16

Aldi are selling a belt sander for £100. It is the same as one sold by Clarke (£138) and Axminster (£150).

Aldi don't specify what you can sand, Axminster say for wood only, while Clarke say it can be used for wood, some plastics and non ferrous metal.

Now I often sand ferrous material on my belt sander plus the odd HSS lathe tool.

Anyone wise as to why the vendors place restrictions on materials, is it because of belt speed? Or is there some other reason?

Just curious,

Andrew,

Thread: Powering a Suds pump?
10/06/2022 16:25:35

I have now got the suds pump up and running. I eventually used a 2 microfarad cap because it was small enough to fit inside the pump and did away with external boxes. Not quite a balanced three phase, but close enough. Yet another 30 plus years. round tuit project, done at last!

Thanks everyone,

Andrew.

Edited By Andrew Tinsley on 10/06/2022 16:26:21

10/06/2022 16:25:34

I have now got the suds pump up and running. I eventually used a 2 microfarad cap because it was small enough to fit inside the pump and did away with external boxes. Not quite a balanced three phase, but close enough. Yet another 30 plus years round tuit project done at last!

Thanks everyone,

Andrew.

10/06/2022 10:26:55

No problem Larry, I thought there was something more to your post, that I had missed! Washing machine pumps tend to have a higher flow and maybe a larger head than a suds pump, but throttled down they seem a reasonable solution. I have used one in the distant past, but had some trouble with the higher pressure when throttled back to give a reasonable volume. It was however a pump off a commercial Bendix, so the average domestic item should be better in that respect.

Andrew.

09/06/2022 19:47:21

Larry,

Why on earth should I go looking for a scrap washing machine pump that will require at least a tank, when I have a perfectly good, professional suds pump and tank, that simply required a change from star to delta and the addition of a capacitor?

I really have difficulty in understanding the logic behind your reply, what am I missing?

Regards,

Andrew.

07/06/2022 11:20:05

Sorry, slip of the brain, I should have said series NOT parallel! Thanks for picking up my error!

Andrew

07/06/2022 10:19:07

Found another 6 microfarad cap so using both in parallel gives 3 microfarads. This works a treat, so thank you Andrew Noyes! It gives almost perfect balance, using my scope (unearthed for this measurement!)

The tank and pump are stand alone items, to be switched to whatever machine is in use, so single phase is the best bet.

Thanks everyone for their input.

Andrew.

06/06/2022 20:54:03

Thanks both, looks as though a 6 microfarad or thereabouts will do the job.

Andrew.

06/06/2022 19:58:20

I have a Myford tank and suds pump. The pump was made by MG Electrical of Colchester.

At the moment it is connected for 3 phase 440 Volts, Star. The motor can be easily be rewired for Delta and 240 Volt 3 phase. It will take 0.22 Amp in Delta.

It is hardly worth using a VFD for this application. I know that other folk have connected up the motor using a single phase supply (live and neutral) and a capacitor feeding the 3rd phase. I can play about with the capacitor size, but that mean buying in a selection! I have a 440 volt rated 6 microfarad capacitor which will probably work.

If anyone has done a similar conversion, then what size capacitor did you use? There is probably a way of calculating the required size, but I am too lazy to start that , if someone has a working value!

Regards,

Andrew.

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