Mini-Lathe Observations

JWinAZ

Well-Known Member
I am not a trained machinist. Shop classes long ago, and visiting the toolroom every chance I got are the extent of my “training”. I like making things. When I retired the first time, I bought this Little Machine Shop HiTorque 7x16 lathe. Picked it up at their store during an open house. It has given me 10 years of good service. I probably have at least 2x the cost of the lathe in various accessories and tooling.

It is fine for small work and fairly light cuts. Chatter can be a problem. I have it bolted down to a bench with a heavy steel channel under the top that the bolts go through. That helped some as did replacing the cross slide with a solid riser. On the other hand, it is easily moved (100 lbs) and does not take up a lot of space. A jelly-roll pan replaced the attached chip pan.

A selling point of this lathe is the brushless DC motor that provides decent torque at low speeds. I have found this to be the case and rarely stall out the spindle at low speed. Made in the same Chinese factories that the Grizzly, Seig and so forth are made. Those cost less than the Little Machine Shop models.

The quick-change tool post is very nice. I can dial in the tool point height very precisely.

Manual change gears for the threading and power feed are ok, mostly I hand feed and use dies to thread. But I have single pointed threads without a problem.

The digital readout on the cross slide is useful, but is not a position sensing, just replaces the dial. Push button zero and inch/metric are nice.

Free machining material really makes a difference, 12L14 steel, C360 Brass, and most aluminum alloys are all good. For harder stock, cold finished 1144 works well.

The lathe is shown with an ER40 collet chuck, up to 1”. That was one of the best upgrades I made. Concentricity is outstanding. The three and four jaw chucks are used when the material is not a standard stock size.

Screw machine length drills are well suited to the size of the lathe. I have had really good results with Micro 100 brazed carbide lathe bits. Quality cutting tools make a big difference.

Zero problems in ten years. I’m going to upgrade the spindle bearings to tapered rollers and rework the gibs on the slides one day.

I do think about getting a larger lathe from time to time. If I had known how much I would enjoy having it, and that I would have a shop space in the future, I should have. It’d have to be something that I could move myself, so 3-400 lbs. A larger spindle bore and better rigidity would be nice. On the other hand, this one is very useful despite its limitations and I’m pretty well tooled up. I quail at the thought of spending to tool up a larger lathe. I can only dream about a Monarch 10ee!

Mini-Lathe.JPG
 
The 10EE is still a small machine capacity-wise, and well out of reach of most everyone. You can have a new lathe of very good quality for a tenth the cost of a refurb 10EE.
 
I'm pretty sure @Brad bought a PM lathe, gunsmith version. He seems pretty happy with it. You can get a lot of machine for under $5000.

For doing barrel work and other larger diameter turning and boring, I bought a no-name 8.6x29.5 metric mini lathe which has a 1-3/8" spindle bore and an MT-5 headstock taper. It needed some work.....


 
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I have a PM 1236, had it for about 9-10 years? No problems at all and would buy again.
It is big enough and heavy enough to do anything I need to do.
I need to put a DRO on it
 
I like mine well enough to buy a Taiwan made bench mill from them as well.

Think of all the money you will save by making sizing dies yourself!
 
"purchase justification rationale"

Do I have it now? – No, but I want it.

Do I need it? – Well, not really, but it would be cool.

If I buy it, will I be able to justify the expenditure? – Without lying to myself? Not entirely.

Will it require more self-deception than other tools I’ve purchased? – No, I’ve spent far more money on less defensible purchases.

Will it be cool enough that the fabricated justification will exceed all prior fabricated justifications? - Oh yeah, it will be an epic, convoluted, complex fictional justification.

So, will buying this tool potentially increase your skill in fabricating complex justifications for future purchases? – Without a doubt.

Clearly you need it, and it will enhance your fabrication skills. :D
 
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I might have to start work on a "purchase justification rationale".

You aren't going to get talked out of it by anyone here. My little $700 Griz has actually paid for itself and all of its accessories/upgrades through would-be gunsmithing fees for all of the muzzles it has threaded, barrels it has profiled, chambered, and threaded, recrowns, and countless loading room tooling it has made. It also enabled me to completely re-engineer and rebuild a much bigger, more capable machine for a lot less money than buying a turnkey gunsmithing lathe like Brad's.

My big Griz mill hasn't quite paid for itself yet in money (although I've made a good bit of cash with it) but it is absolutely indispensable for just about any project I undertake these days.
 
Better budget something nice for her, too, or make something with tooling (worked for me). Too bad I didn't notice this thread back when you first posted it, I could have steered you to Gary who was selling his nice and well-tooled "old orn" machine for a very reasonable price. You would have had to travel to SE Kansas to pick it up, and though not an engine lathe, you would still have needed some help to unload it on your end. It went to a good home anyway so no worries.

I had a chance to buy my dream lathe, an Axelsen 16, and get free delivery on it from 5 hours away, but it needed an overhaul and three phase converter and the man still wanted $6000 for it. I can't say it wasn't worth the price, especially delivered, but I had no way to unload it and after paying him wouldn't have had any spare discretionary funds (much less the time) to get it working. And it would have taken up far too much space and I only have a 4" slab in the shop to bolt to it (not enough, would have needed to pour a high-psi, reinforced 3x8' pad to support it).
 
My wife only told me to get something where I wouldn’t be wanting something bigger/better a year or two later. So far that has not been an issue at all.

Biggest issue for me was getting it out of the bed of my truck and one the stand. That cost me a few bucks as I don’t have a way to move better than 1000 pounds safely.