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Member postings for John Rudd

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

Thread: SMR's a conundrum.
08/11/2021 11:44:37

I used to hate TLA's when I was working....

Thought I'd seen the end of them...sad

Thread: Chester 920 cross slide & Backlash
29/10/2021 16:52:15

I bought my spare belts from Beeline engineering in Milton Keynes, they worked out to be about £6-7 ea..much cheaper than the likes of Warco/Chester or even Ebay

 

The belts themselves are 5mm wide, the length did vary with machine....730 seems to stick in my mind...

Generally, If you have a 160XL Coged belt, you need a 5M720 V-Belt.
If you have a 170XL Coged belt, you need a 5M730 V-Belt.
Should you use a 5M720 V-Belt with the 170XL Coged belt the V- Belt will be too short.
Using the 5M730 V-Belt with the 160XL Coged belt, the V-belt will be too long.

Edited By John Rudd on 29/10/2021 16:57:24

Thread: Selection of AC transformer for Align Power Feed
23/10/2021 10:08:08

Go to your local electrical factors and ask for a 240-110V AC control transformer....

Dont know your location but here's an example....

https://www.rselectricalsupplies.co.uk/chint-multi-voltage-panel-transformer-150va-ndk150_1068

Thread: Chester 920 cross slide & Backlash
15/10/2021 08:39:38

The cross slide lead screw is M8 with a lh thread.

I had to make a new one for my 9 x 20 when the original snapped...Silver steel is good enough for a replacement..

Thread: Sieg X2 mini mill blowing fuses
21/09/2021 21:33:26

David, I sent you a private message....disregard it if the mill is new and under guarantee...

the power semiconductoir devices are thyristors ( scr ) and form part of a full wave rectifier bridge across the mains...one or more is defective if you read 0 ohms...

Thread: Cutting Steel Plate.
11/09/2021 12:00:06
Posted by John Baron on 11/09/2021 11:36:11:
Posted by noel shelley on 11/09/2021 10:18:29:

Sounds like fun ! Where are you ? Noel

Hi Noel,

I'm in North Yorkshire, near York.

You arent cutting up the 'lightning struck' Bilsdale tv mast are you? laugh

Thread: Vfd frequency Warco WM290 and WM280v
30/08/2021 15:23:09

FWIW,

I have a similar machine to the WM290 which originally came with a dc drive.

I changed the motor to a 2 pole 2800rpm 1.1kw 3 phase motor in an 80 frame size, it occupies the same space as vacated by the dc motor.

I used an Invertek vfd and set the max frequency to approx 72 Hz to give me the same spindle speeds as before.

I had no need to change belts or pulleys.

I used the existing speed control pot, rewired the FWD/REV switch to give the desired functionality for the vfd.

No additional switches or buttons.

Thread: re-magnetising magnetic base
07/07/2021 15:08:28

Folk who offer magneto winding services may be able to remagnetise it for you…

Thread: Is this a new scam?
30/04/2021 20:05:38

Selling on Ebay has now become less attractive....Gone are the fees paid to Paypal because the buyer pays directly to Ebay and they in turn pass on the proceeds to the seller after taking their cut...

From what I can gather Ebay fees are now more than what Paypal would have charged plus the selling fee for Ebay combined...making it less attractive to sell a low value item inc postage.

As a consequence of this, even buying would be less attractive too because sellers are likely to increase their prices to accomodate the rise in fees.

Thread: Variable rpm control for watchmakers lathe
19/03/2021 12:32:27

John Fletcher, pm sent...please.

Thread: HydroVane PR303E question
15/03/2021 15:34:05

 

 

I asked him "what work exactly has been done to this compressor as it is described as 'seller refurbished', did you use any spares?" (potential for mis-selling, not as described)

 

It wouldn't surprise me if it didn't sell....

 

Just got a reply on the instructions...£20....Greedy!!

Edited By John Rudd on 15/03/2021 15:41:10

Thread: Warco mini lathe
08/03/2021 08:20:55

There is an error....

The default M display is 0 not 1 as written...showing spindle speed.

08/03/2021 08:19:46

Hope this of use....WM180.jpeg

Thread: Chester DB10 speed question
03/03/2021 14:14:23

Running in reverse with a lower speed is by design on these machines....

Thread: Warco mini lathe
01/03/2021 18:14:17

Cheers Ian....

Just about sorted it now..

01/03/2021 16:46:29

Ian,

I've sent you a pm...

26/02/2021 07:58:02

Ian,

Thats a great help...

Should be able to get the machine running as it should now......👍

Thanks.

25/02/2021 21:35:20

Ian,

Thanks thats great....Just what I needed.

Do you have any idea on how the buttons work?

I think the green M button switches the motor on, the Red one, off. The two either side cause a change in direction, but what about the + or - buttons...?

Any help appreciated...

25/02/2021 15:55:35

I have one of the earlier Warco mini lathes that has the digital speed readout panel whereby the speed is set via touch buttons rather than a speed control potentiometer....

It looks like the machine has been tampered with in the past...

So before I start pestering Warco, if there are any owners of a similar machine, could they tell me where is the little speed pick up board secured inside the end housing where the change gears reside?

I can see the slotted disc, but there's nowhere for the opto coupler device to be secured....I cant see how it attaches...

 

A photo would be a great help...

 

Many thanks

J.

Edited By John Rudd on 25/02/2021 15:56:30

Thread: Warco 180 mini lathe
18/02/2021 14:24:51

Ken,

You have a private message, refer to the top of the page a flashing envelope,

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