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I have one of these (and I've cut 12mm steel with it, though it was rough as guts). Does fine in smaller stuff.

I ordered a straight handpiece to convert to CNC, but the thread is not a match,...

I think hardware stores stock different plating to prevent stock getting mixed up. I recommend bolt dot com dot au. You can order for pickup or get delivery.

There is a generic bevel gear generator on Thingiverse, then you just need to code up those drive lugs.

https://www.thingiverse.com/thing:3575

Since the height adjustment is low speed intermittent use, a 3D printed replacement would probably work just fine.

Take a guess at the number of teeth, print out a paper template and see if it fits. Next step is to 3d print a 3mm thick template to confirm operation. Then print or cut a gear. For tumblers...

The cheap plumbers copper benders have worked fine for me on the 13mm steel tube from bunnings.

Hi @Woodlyo, i have a Great Scot in good working order.

From your pictures it looks like you have the stock white metal bushings. The metal rings with holes are threaded cones used to tighten...

I had a similar problem - milling slide no nuts. I turned a set of nuts on a threaded mandrel; rectangular foot but circular tapped pillar. My slots are about the same size as yours.

Old Hutchoo, I have a mars great scot (missing many original parts alas) but with a relatively complete set of gears.

Don't have any spares, but I do have some of the cutters to make more. I've...

What a conundrum. It doesn't look like either the cross slide or the compound slide on my Great Scot. Both of those have the female dovetail on top.

(First pic is cross-slide with compound...

Thanks Davycrocket, and all who've contributed to my confusion..





Yep, I thought I'd got lucky when I found a bunch of 1.5" backplates for sale, but they were the 6TPI BSW thread, so I...

Here's some info on their lathes (of which I have one). The page mentions that they made shapers but has no more info.

Page Title

What about an air- or drill- powered nibbler?

Try here: McJING Tools Online

Also, you might be able to modify a tap seat cutting tool or a woodwork spade bit (by fitting a wooden plug over the pointed tip to serve as a pilot) to do the job.
...

I have a Mars "Great Scot" lathe with a 1-1/2" 8tpi spindle.

I was told by the previous owner that this is the same as hercus and southbend, so I bought a used backplate to suit, advertised for...

I was stumped by that too.

My best guess is that it's a blade rest---if you stand it on the bed within the work-clamping area, the point fits into the backbone of the frame and prevents the full...

I made a new workbench this year (still going, haven't fitted the planned electric powered vises yet) Workbench - a set on Flickr

It's mobile w/ locking wheels and since I recently added a metal...

I haven't quite finished writing up the doco yet, but when I do it will be at Make The Future

The code and schematic (eagle CAD format) is available right now at...

I built my own tachometer using a microcontroller board (an arduino clone called RBBB), a 16x2 LCD and a hall-effect sensor.

With a tiny rare-earth magnet hot-glued to a shaft or pulley, it...

McJing tools (mcjing.com.au). They're in sydney but ship same day express, I typically get my orders (in brissy) next or 2nd day.

Last time I added a downpipe for the same reason, I did it with a nibbler - Nibbler - Wikipedia, the free encyclopedia - air powered one for quick rough shaping then finished off with hand nibbler.

The last heavy order I had from the US (in June) took 18 days.

Parcels larger than 100g seem to be taking much longer now (2-4wk) than smaller ones (7-10d).

Don't get your Cains crossed, 'tubal-cain' (the name of the supposed first blacksmith of antiquity in the judeo-christian bible), has been used as a nom-de-plume by several different people.

Do try the offset method, but as for cutting oil, I found a hint in one of the SI Workshop Practice Series that said "50/50 neatsfoot oil and paraffin" makes a good cutting fluid. Having some...

Looks like steel merchants and the Internet don't mix so well. Being a 9-5 desk jockey who only slings chips by moonlight, I like to shop online where I can.

Of the 3 steel merchants in my area...

Progress update:

Still haven't got the oilers forming visible drips, but am satisfied enough for now that they drip at an acceptable and steady rate.

The parting-of-the-red-sea that my...

I've turned aluminum and brass up to 25mm dia on a wood lathe using one of those x-y cross-slide vises bolted to a wooden platform which is in turn fixed to the bed.

Vise holds an improvised...

What sort of machinery do you need?

I think Kenmore mens shed (Shed West - Home) have a lathe. Brisbane Hackerspace at fortitude valley (hsbne.org) have a 9x20" lathe and some other machine tools.

The forums really didn't like my edited picture. I lowered the res and uploaded a new attachment.

Here is a picture with the needle seat removed from the sighting chamber (inset is the top side of the seat, main picture shows the needle and underside).

I lightly filed off the burring around...

I requested a clarification from Scott metals. They say they don't stock any bar over 20mm, and will only order in for sales of a whole 6m length.

They seemed puzzled as to why anyone would...

The part pointed to by the arrow (which I have been calling the barrel) screws into the large part above and to the right, which contains the conical needle seat. The glass windows in that part are...

Hmmn, I will have to strip one down and take some more pics of the bottom of the valve seat, but I think that would work. Holding the sucker while turning it shouldn't be too hard--can use the...

Thanks brett22---early bird steel pricelist was very helpful, alas they're clear on the other side of town.

Soundman, thanks for the info, esp on the brass. I have no trouble scrounging wood and...

I tracked down some Castrol Hyspin 68 spindle oil.

Still no control over oiler drip rate, so I stripped down the oilers and worked out the problem.

The needle valve barrel hadn't been deburred...

Most of the metal on quicksales (aka oztion) is Offcuts Galore (george vesley), whom we've been discussing. I see he has quite a bit of mild steel up this week, had hardly any last time I looked. ...

Thank you all. I'm at a total loss with these oilers. (pauses for groans)

One of them adjusts between steady flow and about 6 drops a minute, the other one seems to have no appreciable movement...

George at offcuts galore tells me he's not working in fabrication any more, so his "offcuts" are now new merchant bar chopped to order.

I've got a few bits of 20-30mm bar from flea markets, but I...

Many thanks for everyone's ongoing advice.

Waggling the chuck up and down (scientific waggling of course!) while watching a dial indicator, I measure .06mm vertical movement in the spindle (about...

Just got a pair of drip oilers from RDG in the mail.

I've no idea about drip rates or appropriate oils (apart from what I learned from
this thread and
this one.

What's a ballbark drip rate?...

Thanks kev, I've bought from George at offcuts galore (he's on both ebay and oztion/quicksales) many times--this is where I've been getting my aluminium, brass, and some cold-rolled steel. Cost...

Thanks roger, that's a good idea. Chunks of axle would get me by for some of my needs.

I'm basically after round steel in sizes 20mm--50mm, square around 40-50mm, and flat bar 12-20mm thick. ...

To the member who responded by PM, thanks, I can't reply because your mailbox is full.

The feedshaft is driven off the leadscrew (a pair of 20t gears), so if I put the tumblers in neutral I could use the leadscrew halfnut to lock the carriage, yes.

Can't do that if using power...

I live in inner western brisbane (Kenmore) and I've just got my first
metal lathe.

I'm looking for places to get round and flat bar offcuts or short
lengths in western brissy (I only have access...

I was tinkering about tonight and I notice that if I pull the carriage
toward the tailstock it will move down the bed, causing the handwheel to turn.

This can't be good for doing any significant...

That sure looks likely to me. Then of course the thread indicator casting would get lost...

Pipeclay, you were dead right of course. There is a wormgear assembly which rides on the feedshaft, and engages either of two wormwheels, which drive either the crossfeed or the carriage feed by...

Awesome, thanks a lot. It must have been raining bronze when they made these lathes. I have an article from a recent issue of Model Engineers Workshop magazine on making a thread indicator for a...

I'd love some pictures of the thread dial (missing entirely on mine), and info on how properly set up change gears are laid out. I tried to set up 32tpi as per the chart, but couldn't make the...