Member postings for Jss

No, but they can warp if you’re not careful.

I wouldn’t mind bidding on this, but unfortunately I don’t have anywhere to put it at the moment.

https://www.ebay.co.uk/itm/115673928692

John.

Edited By Jss on 21/01/2023 16:41:06

Hi Rod, if we’re talking about the N151.2-250-5E 1125 inserts, yes I would be willing to share!

John.

Changing the motor direction is done by swapping the polarity of one of the windings (usually the start winding?). If there is leakage at one end of this winding or associated wiring there may not be enough leakage to operate the RCD when that end is connected to neutral, but there will when it’s connected to live. Neutral to earth faults will also trip the RCD if there is enough voltage rise of the neutral due to load or length of circuit.

John.

Edited By Jss on 27/08/2022 13:29:16

Hi Nicholas, did you manage to remove the drawbar? I have a similar machine and the drawbar is easily removed by undoing the hexagon head (mines standard right hand thread, but yours maybe left hand) a few turns and then giving the end of it a tap with a soft faced hammer to loosen the far end as AJAX says. The arbour end has a 3/4 in’s plain shaft that fits into the mandrel.

I’ve made a couple of fittings to fit into the end of the mandrel, one that will take a fly cutter and another threaded to match my lathe spindle nose.

John.

And Neil missed

1 who said the OP maybe shouldn't be changing the bulb in the first place but should be ringing the local distribution network operator first to check there isn't a power outage in the area. Otherwise he could end up changing all of his bulbs (and all of his neighbours as well).

I've got one of these too. It looks like a NAMCO thread chaser grinding fixture. I bought mine thinking I repurpose into something useful. At the moment it's a doorstop. Sorry the picture isn't too clear, but the photo in the bottom right shows it being used.

1kW per household is not far off if taken for a large enough number of houses. The population of Goole is around 20,000. Google tells me that the average occupancy for England is 2.4 per household. That makes for about 8,300 households. Last time I checked maximum demand in Goole was about 10MW if you removed all the industry, but that still included commercial load, shops etc. (I also used to work for YEB/YEDL/NorthernPowerGrid.)

Let's not have any cheap shots about Goole, please. I don't live there but it's not as bad popular opinion would have you believe.

John.

Like my woodworking lathe.

Sorry, I've just checked again it's actually a Nova Chuck, I don't think it was made in Russia.

John.

As mine has a slightly different drive to other Drummonds here is a sketch and pics of the drive dog and drive plate for anyone who wants to copy them.

Regards, John.

Edited By Jss on 19/01/2018 18:53:33

Say hello to crazy Maisie!

John.

Edited By Neil Wyatt on 16/01/2018 12:57:57

Hi ndiy , sorry for the delay in replying, I'll pm you with sketches of the drive on my Drummond shortly. But in answer to your query I can get the movement on mine to vary between one tooth and four teeth depending on the travel of the ram and the position of the pivot in the slot on the drive plate. The cross slide moves about 5thou per tooth. The maximum I normally use is 10thou per stroke.

Regards, John.

Thanks for that Jeff, I'll try that next time.

Regards, John.

I've just had to restrain myself form throwing my IPad out of the window. Having spent over half an hour composing a reply to a private message and pressing the send button nothing happened. I pressed it again and still nothing. I've checked the sent box and only the blank message, that I sent in error at the start of the process, is there. Having navigated away the message is now lost. Grrrrrr.

What doesn't help is that as soon as I start typing the window drops down to the original message and I can't see what I'm typing. What am I doing wrong? Is there a maximum length of message? After a bit of a struggle I did manage to attach a picture.

Going to the pub soon, John.

PS sorry I forgot, Happy New Year everybody.

PPS if you read this , not done it yet, I'll have another go tomorrow.

Edited By Jss on 31/12/2017 19:16:25

Edited By Jss on 31/12/2017 19:23:23

OH YES THEY DO!

(As we're now in the pantomime season)

John.

While we're on about Drummond shapers, does anyone recognise this shaper? It looks like a Drummond but does not match any of the photographs on Tony Griffith's website. The main body is different as is the clapper box.

The handle is not original, it has been cobbled together using a piece of threaded rod and tubing.

And just in case there's still any doubt here's a picture. It's difficult to see but the steel on both sides of the saw cut is warped away from the cut. This was to be a tool holder for a shaper.

Regards, John.

Edited By Jss on 06/07/2017 14:37:08

The Pirelli bars are probably aluminium solder for sweating connectors onto aluminium cable cores. Not used now it's all compression fittings or shear off connectors.

John.

Hi Roger/Bill, my apologies for not responding sooner. I tidied away the drawings for the Potts jig some time ago and it's take a while to find them. Also this is my third attempt at posting this reply.

Roger I struggle with Yahoo groups. I thought that as I was a member of the Drummond lathe group I would be able to get to the link you posted. Unfortunately not, I have to be a member of the Quorn Owners group as well. If all else fails I'll pursue that. Thanks for posting the link anyway.

Roger here is the detail of the detent as per per the drawing from Wokings:

As for the instructions:

Hope these are of some help.

Regards, John.

How about warming the chuck, with a hot air gun, until it's nearly too hot to touch and then squirting one of those freeze sprays, that DIY stores sell for freezing water pipes, into the spindle morse taper? You may have to blow warm air in afterwards to take away any condensation that forms inside the spindle.

John.