Here is a list of all the postings JAMES HUGGINS has made in our forums. Click on a thread name to jump to the thread.
|Thread: Hello from West Sussex, looking for ID for my first lathe|
Doing it this way, I was concerned the weld heat would move things. So I welded it then faced it. And regarding facing the nut, there was barely any measurable runout once I had ground it, probably less than what adding the steel plate added. It all seems pretty good.
I put a 200mm precision ground round bar in the chuck and adjusted the headstock (there are bolts believe it or not to do this), and with an indicator I now have 0.02mm over the 200mm so 0.02mm taper.
This lathe is a bit laughable really. Fingers crossed those welds hold 😆
Sorry yes it's 3/4 10
Edited By JAMES HUGGINS on 11/07/2020 21:18:33
A quick update if anyone was interested.
Bought a used 4 jaw prat Bernard 4" chuck and turned a face plate for it. I had some hurdles on the way and still need to fettle the electrics slightly but is working OK. Very crude motor mount for the time being just until I get it turning and decide if its a venture worth continuing. So far not bad...
i bought some 12mm steel to make a back plate from, welded a 3/4" 12 nut on the back which I had ground parallel on the diamond plates. Managed to get it to run 0.01mm on the spindle with not much problem, these nuts come pretty true it seems. How did I get it central you may ask? Well I drilled a 3/4" hole in the center of the plate which allowed the threads of a 3/4 12 bolt through but stopped at the shank, then wound the nut up to the plate and tack welded the nut on, kept the heat to a minimum and all was good.
The plate had been plasma cut and the edges were as hard as granite which I learnt after having destroyed a freshly ground tool! So I'm going to grind the final shape down a bit more yet but manage to turn a good recess in the face for the chuck with about a 0.05mm (10thou) gap between chuck inner face and the plate, I've read you want a slight gap there with 4jaws, not sure if that's right?
Lastly I drilled the bolt pattern and bobs your uncle! Chuck runs nice and true, within 0.05mm. I've still got to dial a few things in, like checking the bed for twist etc but I'm no tool maker and I don't need anything crazy accurate. Should make for a nice learning lathe.
I forgot to mention, whilst trying to turn the recess on the plate, the cross slide lead screw nut gave way, no threads left! So I bought a new screw and nut and cobbled it together to get the lathe working to finish the chuck. So my first jobs is probably to get the cross slide working properly again 😆 all good fun though.
I'll post some pics shortly.
OK well that all sounds good to me. I'll get my father in law to help turn the recess in the back plate when I get one if I don't manage to find one that is matched to a specific chuck. It's just what to search for chuck wise really to begin with. Oh and also a small pulley to fit my motor. I will get some round belt for the 7mm pulleys but I will also need a small pulley, any recommendations of where to buy?
Thanks for the kind thought though 😊
When you say exactly, are you talking scribed and centre punched by hand and drilled in a pillar drill? Because that isnt out of my capability or are you talking via a milling machine? My father in law has a large functioning lathe and I know people who have access to industrial machinery at a heritage railway so if its not something I can do in my workshop, I can get it done elsewhere.
So from the middle of the spindle to the casting below is 4 5/16", point of tail stock to bed is 3 1/2". Does anyone have any dealings with RDGTools? Seems cheap but would might be OK as a starter chuck, don't want to break the bank on a chuck if the lathe ends up being a chocolate tea pot
I'll take some measurents later and let you know. When you say drummond round bed is that the one with the big tubular radial arm looking bed?
Right yes I see that, I only have single split bearings. Is there a rule of thumb for tightness with that style bearing or just measure the heat?
would you suggest a decent second hand chuck in that size of which I could get a mounting plate for with 3/4x10 thread?
Speeds are something I'll need to learn about first. I mean turning down small diameter steel bar would probably be my main use and possibly boring thicker diameter to make tube. I've no idea what speeds Ill be needing but my thinking was I could if needed have a speed controller set up with a DC motor.
Oh wow that's extremely close! Just seeing the dogging clutch mechanism for the auto feed will help as I can make all that up from scratch
You can see on this pic here hopefully; the slotted drive fitting in the feed screw and also off the back of the drive spindle where gears would have been. It would be nice to cut threads one day. The dovetail bed has adjustment in, although the tailstock does seem a bit worn, I can probably shim that though np.
The spindle thread is 3/4x10. When I Google that all that comes up are adaptors 😆 I assume from that, people use more common chucks with a different thread.
What size chuck would you suggest for such a small lathe? Do you want some measurements?
I have a 350W ac motor I was going to try to begin with. They are V pulleys, tiny... 7mm.
Edited By JAMES HUGGINS on 31/05/2020 16:34:40
The nearest to it I've seen style wise on lathes.co.uk is a Drummond but nothing identical
Thanks for the warm welcome, I assume tabby cats sleep a lot 😆 it was a late post I will admit. I didn't intend for the pictures to be all over the place like that. I'll get the hang of it!
I recently bought my first lathe. It looked like a little gem when I saw the listing and for £120 (not complete however) I thought bargain. Look really well made.
I went for a small lathe as I don't need anything too big and I thought it would be easier to learn with.
I can't find out any information about this lathe or who it's made by even, the only marking is U32 in the leg casting. I need to source some compatible parts and ideally the auto feed parts as they are missing.
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