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Wadkin RT Lathe restoration

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Re: Wadkin RT Lathe restoration

Postby wallace » 30 Jan 2015, 18:17

Well very nearly finished, I got it all wired up, I need to make some handles for the brake and the speed selector

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Wadkin RT Lathe restoration

Postby TrimTheKing » 30 Jan 2015, 18:54

Very nice, as good as new! :eusa-clap:

Cheers
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Re: Wadkin RT Lathe restoration

Postby Rob » 30 Jan 2015, 19:48

It would seem appropriate to turn the handles??
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Re: Wadkin RT Lathe restoration

Postby DaveL » 31 Jan 2015, 00:50

I love the fast or slow switch.
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Re: Wadkin RT Lathe restoration

Postby Andyp » 31 Jan 2015, 09:02

Is that fast slow switch variable speed as well? Looks odd to be having the Off position half way between the two.
I do not think therefore I do not am.

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Re: Wadkin RT Lathe restoration

Postby wallace » 31 Jan 2015, 11:16

Andy I was hoping it was some kind of variable speed, wadkin did have an early variable speed lathe. The handle is a bit weird, it freely moves on the shaft without altering the setting. You have put a rod down the handle into a whole/detent and then move the handle to change the setting. Plus you cant go from slow to fast it just switches off, you have to restart from the on/off
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Re: Wadkin RT Lathe restoration

Postby 9fingers » 31 Jan 2015, 11:26

wallace wrote:Andy I was hoping it was some kind of variable speed, wadkin did have an early variable speed lathe. The handle is a bit weird, it freely moves on the shaft without altering the setting. You have put a rod down the handle into a whole/detent and then move the handle to change the setting. Plus you cant go from slow to fast it just switches off, you have to restart from the on/off



I think this is all deliberate to makes sure the huge currents that would flow with an "instant" speed transition are minimised. Bear in mind that the un powered winding is acting as a generator at 1/2 or double the mains frequency depend on which winding is powered at the time.

For variable speed, an inverter will be needed.

Bob
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Re: Wadkin RT Lathe restoration

Postby tracerman » 31 Jan 2015, 17:26

Wallace - proper job . I love these restorations . Anything else in the pipeline ?

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Re: Wadkin RT Lathe restoration

Postby wallace » 31 Jan 2015, 20:46

Yes Steve I have just acquired a very early RS lathe.
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Re: Wadkin RT Lathe restoration

Postby wallace » 01 Feb 2015, 17:26

Well its finished, not bad going 9 days. I think I put a good 35 hrs into it.

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Re: Wadkin RT Lathe restoration

Postby furnman » 01 Feb 2015, 18:05

great job mark. :eusa-clap:
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Re: Wadkin RT Lathe restoration

Postby tracerman » 01 Feb 2015, 20:47

Wallace , truly inspiring . Looking forward to the next one . Well done .

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Re: Wadkin RT Lathe restoration

Postby Wozajazzer » 27 Oct 2020, 18:35

Hi Wallace,

real novice here, just joined, just (semi) retired and about to embark on a Wadkin RT Lathe restoration. Your’s looks fabulous. Mine’s an ex school workshop machine that last ran about 7 yrs ago, up til then routinely maintained so I’m hopeful I can handle this restore. Do you have any suggestions on where to find parts?

I’d really appreciate any advice.

Cheers

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Re: Wadkin RT Lathe restoration

Postby Deejay » 28 Oct 2020, 09:26

Morning Wallace

I can't see your pictures at the moment.

Most are shown as 'Unavailable' by roomeo and some have a watermark from photobucket.

Any idea why this is happening?

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Re: Wadkin RT Lathe restoration

Postby wallace » 28 Oct 2020, 09:56

Wozajazzer wrote:Hi Wallace,

real novice here, just joined, just (semi) retired and about to embark on a Wadkin RT Lathe restoration. Your’s looks fabulous. Mine’s an ex school workshop machine that last ran about 7 yrs ago, up til then routinely maintained so I’m hopeful I can handle this restore. Do you have any suggestions on where to find parts?

I’d really appreciate any advice.

Cheers

Tony


Parts will be pretty non existent apart from what shows up on ebay, The tail stock is the same as an RS just without the facilty to do off centre turning. The spindle thread is the same as the RS 1 3,8ths by 6tpi. The taper is the same also morse 2.
I've still got a RT that needs restoring some where.

The picks are gone or watermarked because they both wanted money to host them
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Re: Wadkin RT Lathe restoration

Postby Deejay » 29 Oct 2020, 08:45

Morning Wallace

The picks are gone or watermarked because they both wanted money to host them


Bob wrote about posting pictures some while ago when Photobucket started charging ...

viewtopic.php?f=20&t=2850

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Re: Wadkin RT Lathe restoration

Postby Wozajazzer » 11 Nov 2020, 10:36

Hi Wallace,

Thanks for the tips re spares.

My project is progressing. I have not managed to disassemble the motor to access and inspect the bearings. The nut at the rear end of the shaft has been modified by someone (I guess to lock it in place) and I can’t shift it.

Also there is a capacitor bolted to the bed that is connected to terminals C and LA2 on the main switch. Can you help me with the purpose of this component? Does it matter Whitchurch way round this is connected? I’m fairly certain I can recall from my pictures and notes but not 100%.

Advice and suggestions is much appreciated
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Re: Wadkin RT Lathe restoration

Postby Vann » 12 Nov 2020, 00:19

Wozajazzer, can you put up some pictures please, and maybe give an indication of what parts you think you need.

Also a picture of the Wadkin tag would be appreciated.

Cheers, Vann (fellow RT owner - RTA 380 of 1951)
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Re: Wadkin RT Lathe restoration

Postby Cabinetman » 12 Nov 2020, 19:55

I would hazard a guess that the capacitor is the one that gives the motor a jolt to start it spinning, Recommend you don’t touch the terminals or you might be the one that gets a jolt! Ian
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Re: Wadkin RT Lathe restoration

Postby 9fingers » 12 Nov 2020, 20:08

Cabinetman wrote:I would hazard a guess that the capacitor is the one that gives the motor a jolt to start it spinning, Recommend you don’t touch the terminals or you might be the one that gets a jolt! Ian


Always worth being cautious but in the standard circuit for a single phase motor starter, the capacitor is discharged as soon as the motor slows down.
Following up on the earlier question, capacitors used in ac circuits are non polarised. In UK the mains voltage flips polarity 100 times per second so capacitors can be connected either way round.

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Re: Wadkin RT Lathe restoration

Postby Wozajazzer » 28 Nov 2020, 15:42

Vann wrote:Wozajazzer, can you put up some pictures please, and maybe give an indication of what parts you think you need.

Also a picture of the Wadkin tag would be appreciated.

Cheers, Vann (fellow RT owner - RTA 380 of 1951)


Hi Vann

Here’s a couple of photos to begin with. Not been able to release the nut on the rear of the spindle shown in Headstock1 photo, so can’t inspect the state of the bearings but seem pretty reasonable.

Thanks for your interest.
Attachments
IMG_0659.jpeg
Headstock 2
(142.49 KiB)
IMG_0670.jpeg
Wadkin Tag
(180.61 KiB)
IMG_0660.jpeg
Headstock 1
(132.3 KiB)
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Re: Wadkin RT Lathe restoration

Postby Wozajazzer » 28 Nov 2020, 15:44

Thanks for all the advice re capacitor. I’ll be cautious.
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Re: Wadkin RT Lathe restoration

Postby Vann » 28 Nov 2020, 20:30

Wozajazzer wrote:
Hi Vann

Here’s a couple of photos to begin with. Not been able to release the nut on the rear of the spindle shown in Headstock1 photo, so can’t inspect the state of the bearings but seem pretty reasonable.

Thanks for your interest.
Thanks for the tag photo. I see yours is just 12 RTs after mine, and also made in 1951.

I don't think that nut has been modified. Wadkin used nuts like that on many machines (there's one on the end of the spindle on my Wadkin RB 6" surface planer).
Round, with two flats - a saw cut down one side and a CSK machine screw to tighten the saw cut so the threads are clamped and locked.

RT nut.jpg
(80.66 KiB)

I didn't inspect the bearing at that end of mine - I have too many machines in parts and so decided not to go too far with the woodlathe. Before making that decision I had opened up the other end of the spindle. The bearing seemed okay, but looked a little starved for grease. When I checked the grease passage from the nipple to the bearing compartment it seemed fine to the outer race, but then no obvious passage to between the races :eusa-think: I'd be keen to hear your thoughts.

As for getting that nut off - I think you're nearly there. The biggest danger is shearing off the spindle locking pin. If that happens you'll have to grip the spindle on the inboard end - without munting the thread :shock: . Check that the thread isn't left hand (I should remember, but can't). Then gently heat the nut to expand it just slightly, and it should undo. Don't overheat (don't want to cook the grease!). A hot air gun should do it.

HTH.

Incidently, your spindle lock is different to mine. Mine uses the speed selector handle to lock the spindle (an insurance to prevent starting the machine while the spindle is locked??).

RT pin2.jpg
(986.03 KiB)
RT pin1.jpg
(1005.94 KiB)
RT pin3.jpg
Speed selector handle inserted into spindle lock position.
(1.46 MiB)

Cheers, Vann.
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