Colchester Student Mk1 Won’t Start

[Richard Kirkman 1Participant @richardkirkman1]

No that's not my lathe, that's a mk1.5

I've just spent ages looking through google. No where seems to have the right stuff apart from your link Phil.

Shall I order one of these…

Bulb

[Phil WhitleyParticipant @philwhitley94135]

Yes, thats the one I thought was best, get it in cool white. they are expensive for what they are, and I get the impressiom that you are paying a premium price because they are for boats etc! The only alternative would be to buy one of these https://www.plugsocketmuseum.nl/OldBritish4.html (pic No3) you may even have one, I think I have a few kicking about, or junk shop etc, when normality returns. and then attach a lampholder or direct wire an led of your choice, that is cheaper that the BC one, nearly £8 for that is a bit toppy, but then I am extremely tight witth money!!

Stay healthy,

Phil.

[Phil WhitleyParticipant @philwhitley94135]

or one of these, https://www.ledkia.com/uk/buy-conventional-e27-led-bulbs/6421-a60-e27-6w-led-bulb-1224v.html?gclid=EAIaIQobChMIuY2fjbvq6AIVmpntCh3WVQa_EAQYAyABEgJ1tvD_BwE&gclsrc=aw.ds

and one of these,

https://www.ebay.co.uk/p/2101058626?iid=401236754542&chn=ps&norover=1&mkevt=1&mkrid=710-134428-41853-0&mkcid=2&itemid=401236754542&targetid=876487124366&device=c&mktype=pla&googleloc=1006514&poi=&campaignid=9441124701&mkgroupid=91043569850&rlsatarget=pla-876487124366&abcId=1140496&merchantid=109772786&gclid=EAIaIQobChMIu9Wd9Lvq6AIVTO7tCh00BgnZEAQYAyABEgJrdfD_BwE

MUCH CHEAPER! just like me!!

Edited By Phil Whitley on 15/04/2020 13:51:54

[Richard Kirkman 1Participant @richardkirkman1]

I've just ordered it. I didn't fancy messing around with the fitting. Less faff so worth the cost.It shouldn't need replacing any time soon.

The lady with the spare parts finally got back to me today, she's out of work because of the virus so hopefully, they'll have enough time to get me the parts. She said she didn't want much for them as they'd just be going to scrap. But considering that just the original apron handwheel from a spares shop would be £120 then I'll just give her a fair amount for her time. Once I get the parts I'll have a root through, they're sending me a lot of parts. the whole compound I think. I'm going to need to find some heavy postage. Once I've rooted through, I'll put the rest of the parts on here so people can see if they want anything. Then I'll post you the gasket material with any parts you want Phil.

Lighting transformer just arrived. I don't quite know how it needs to be wired

[Richard Kirkman 1Participant @richardkirkman1]

It's just this one

la-333350596060&gclid=Cj0KCQjw4dr0BRCxARIsAKUNjWRLNZLZZGCJ8vrN3kF072mHOC_0dFzAADs2OYdU9DkxOofI83QlyukaAlWKEALw_wcB&gclsrc=aw.ds”>**link**

[Phil WhitleyParticipant @philwhitley94135]

You are probably right about the led bulb, it should last virtually forever, and if it doesnt, bounce it back at that price! The link isn't working, but basically you connect the input 415v side to the slidelock fuses (fuse at 5 amp), and connect the 240v out to your led transformer and the output of the led transformer straight to the light. Check the wiring to the light is ok as they sometimes have old TRS rubber cable to the lampholder, which perishes and shorts out in an oily atmosphere, particularly at the back of the lampholder where it gets warm.

Phil

[Richard Kirkman 1Participant @richardkirkman1]

Okay yes I have 2 wires to put in. So do I put one into the 415v hole and 1 into the 0v hole?

I have 4 holes in the orange bit I can use

0v 380v 400v 420v

And I have 2 wires from the slide lock fuses. So which go where?

I have the low voltage transformer attached to the top. That's fine since 2 holes for 2 cables is nice, I can do that

[Phil WhitleyParticipant @philwhitley94135]

2 wires from the slydloc fuses, one into 420 and one into 0V , watch out for cooling, both tramsformers tend to rum fairly warm, and the led units run qiote hot as they are somtomes capacitance mains droppers.

[Phil WhitleyParticipant @philwhitley94135]

I am typing with an allo allo fronch accint!

[Richard Kirkman 1Participant @richardkirkman1]

I didn't realise you were a police man!

I'll have a go at the wiring

Hopefully I shall wire it only once

[Phil WhitleyParticipant @philwhitley94135]

[Richard Kirkman 1Participant @richardkirkman1]

Any issues with this? Or does it all look fine

Also, how can I test this without having a bulb?

[Phil WhitleyParticipant @philwhitley94135]

looks good to me, can you check for voltage at the back of the lampholder, otherwise, you will have to be patient and wait for the bulb.

Phil

[Phil WhitleyParticipant @philwhitley94135]

Actually I would use the 420v hole to be on the safe side, phases from the phase convertor may not be perfectly balanced voltages!

[Richard Kirkman 1Participant @richardkirkman1]

I'm not getting continuity between the slide lock fuses for the lighting bit.

I'm also not getting continuity over the transformer, but I think that's normal?

[Phil WhitleyParticipant @philwhitley94135]

Fuses blown? I think they are rewirable types, 5 a fusewire. If it never had the transformer fitted there is a possibility that there is no wire ever been fitted in the fuses.. Testing the transformer, you will get continuity between 0v and the tappings on the input side, and ov and 240 on the output side, there is no connection across the transformer,  the magneticc field created by the primary induces the output voltage in the secondary.

Phil

 

Edited By Phil Whitley on 16/04/2020 20:15:28

[Richard Kirkman 1Participant @richardkirkman1]

Looks like my grandpa is helping from the great beyond. There's some fuse wire in his old tool box. I'll do that tomorrow

I'll check for continuity between 0v and 240v tomorrow as well

[Richard Kirkman 1Participant @richardkirkman1]

Good progress today, fixed the fuses so they work now.

Then the grommets and cable arrived for the phase converter so that's perfect now, it's on wheels as well so it can be moved around for sweeping and things.

Much longer

Then the replacement bearings arrived

So I cleaned the coolant pump properly and put it all back together

Then, the precision level I found arrived as well. So I'll be able to measure the lathe bed when I get around to it

The height gauge I ordered also arrived, but I've never used a height gauge like this before so I may have some questions once I've cleaned it up

The coolant pump runs a lot quieter now

Before new bearings

After new bearings

[Phil WhitleyParticipant @philwhitley94135]

That sounds better, you've advanced a tech level!

Phil

[Richard Kirkman 1Participant @richardkirkman1]

Well if I've almost done two years of a mechanical engineering degree then I probably should be able to take something to pieces, clean it, and put it back together again!

I may need a break from the lathe to chop up some logs and prep them for bowl blanks. Break from a lathe to another lathe. Not as nice of a lathe, but more suitable for the job!

[Phil WhitleyParticipant @philwhitley94135]

"Well if I've almost done two years of a mechanical engineering degree then I probably should be able to take something to pieces, clean it, and put it back together again! "

Well, yes, but I have known a lot of ppl with technical degrees who were practically useless! good to see that you are definitely not one of them! Does your degree involve any practical "workshop" time? Do you do a "year in industry" I am out of the loop now, so have no contact with the industry any more! Be carefull with that wood, dangerous stuff! Phil.

[Richard Kirkman 1Participant @richardkirkman1]

Didn't get much done yesterday, but still progress

I took the door and cupboard off to clean inside, then I cut some bits of lino to go in the drawer and shelves to make them a bit nicer to use. It works very well. I had some left over from putting it in my tool chest.

Then I played around smacking the door and drawer with mallet to try and get them to close properly (there was more finess than that, but it was just playing)

Also, looking at the light, which needs a good clean, it might need some parts replacing or modifying. It seems that one of the arms has snapped. It still works fine and stays in place, but I think I may play with it as I clean it

Anyway, I chainsawed up logs yesterday afternoon, so I need to rough out 16 bowls for drying or they'll crack. That'll keep me busy for a few days

[Phil WhitleyParticipant @philwhitley94135]

WOW, that is the original Colchester angle poise lamp, now selling for a small fortune as a covetted item of "Industrial art" so named by a bunch of yuppies who call themselves antique dealers and specialise is industrial heritage items! Mine has a "common" MEM Memlite, which they only sell for £75.00! I am well green!

Phil.

[Richard Kirkman 1Participant @richardkirkman1]

Just finished all the woodworking for the while, more lathe work to follow.

Still no lightbulb. Royal Mail signed for 1-3 days more like 1-whenever it comes. Hopefully next week. It'll be nice to have better light on the lathe. I need to finish a bottle opener for someone, then I'll clean up the light

[Richard Kirkman 1Participant @richardkirkman1]

Emailed the lighting company and they said they've had delays of 2 weeks and more, so might not be here to test till next week. This Friday at the earliest.

If anyone's posting anything, don't use royal mail.

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