I just had a minor epiphany thanks to a comment in an email from my friend Ed. He said, “…I focus on my project and not on the tools unless they impact the project.” What a profound statement. I have been preaching that concept since day one on my web sites.

I often get asked, “What machine should I buy to get started in the hobby.” My stock reply has always been, “First decide what you want to build.” “Second, how much can you spend?”

Ed is an outstanding builder of small scale live steam locomotives and has a wonderfully equipped home machine shop, all top notch machines and tools. His comment hit me so true I could hear the angles singing. Well, almost.

I have read most of Kozo’s books and have seen photos of his modest workshop. He shows his shop in at least the A3 book and several others. I know THAT master builder has a very modest workshop.

Wonderful works are not judged by the machines used to create them. It is the skill of the operator that makes it art, not the chisel and hammer. Are the workshop and tools of Michelangelo famous and on display? No, just what was produced by their use. It is the work that is remembered, not the tools in the shop.

Yes, yes, someday there may be a special on TV about the tools of Michelangelo because some people will be interested, but it is not the tools that have made him and his work immortal.

We all have to decide for ourselves, what is my hobby? Is it making miniature live steam locomotives or owning fabulous machine tools? Neither answer is wrong. Doing both is fine if there is the space and the money. But if my primary desire is for what I can make and not the brand of tool I use to make it, then the choice of tool is clearly defined by the work and funding at hand.

For me, I cannot imagine a worse feeling than sitting in a workshop full of sparkling tools with no idea of what project I want to make or do. I have been in my own professional construction / installation type businesses for most of my life. I bought only the tools I needed to do the work that was providing my income and of a high enough quality to insure ultimate dependability. I still have some of those tools, still in operation after decades of hard and constant use.

I have often expressed “tool lust” in my writings. I think it is a common affliction for creative construction people. The best thing I do is expose it for what it is, an emotion and not a need. Yeah, it hard to keep them separate but all I have to do is ask myself, “Do I need it for what I am doing now?”  I force an honest answer and decide on that naked truth. Well, most of the time.  It has saved me from many squandering purchases.

Just yesterday I saw a 3n1, 12 inch, combo shear, break and roll tool in a HF tool flyer I got in the mail. “Wow”, I thought on impulse, “I can really use one of those in my shop for sheet metal work!” So I ran the test. “Do I really need it now?” “NO.” “Can I buy it later when/if I need one?” “YES” …and probably a better one as most versions are notoriously poor quality imports. The result is my cash is still safely in my business account.

Oh, I did look around and found a better quality version for when I do need one!

Thoughts on Miniature Machine Tools

I don’t own any large machine tools. I have often called my larger machines, the X3 mill and the LatheMaster, my midi sized machine tools. It’s not I don’t like larger machines; I just don’t currently need them. Someday I may but not so far for my personal use. To be honest there are some larger machines I would own if I had the work to support their use. That’s another story. See the last line.

I have smaller sized machine tools here in the shop that I use on a regular basis. Two popular American product lines are the Sherline and the Taig manufacturers. Both produce high quality run-out-of-the-box micro machines. I could enjoy making small size parts for the rest of my life with either brand of these tools.

I have selected Taig for my use (and to sell) because I personally know the quality and I like the design. By the way, I don’t have a “Fandom” mentality on a brand name. That’s for the obsessed, defending a product as “best” just by the “brand” name it wears. The fashion (clothing) business is much the same case. I buy a shop tool (or anything actually) because it fits my need, works for me and is available. There, done with the decision, I soon get over brand obsession and am happily using my purchase.

I personally own and operate a few Proxxon brand tools. I even sell a few. The Proxxon market niche is the micro to mini size machine tool and includes powered (and now non-powered) hand tools. Made mostly in Germany and imported to the USA, they are higher priced but also fuss free and very high quality. I just open the box and use them.

The cost on most of the Proxxon line items (except for lathes and especially mills) is well within competitive range to similar quality products. The machine tools are not in the premium price range but rather mid range as costs go. They are usually better in the details like collets, bearings, good fit and smooth and quite operation compared to lower cost machines.

A concern I have is if new buyers understand how small micro and mini tools should be used. They’re for hobby or craft use and small industrial applications like dental labs. Small and medium size hobby crafts are their real sweet spots. Most tools this size are not suitable for major construction use like building real furniture. There are operation limits that can be exceeded because of their size.

Not selecting the lowest price machine in this class size doesn’t automatically make them bigger, heavier, or stronger. It just permits investment into better tool finish, great attention to detail, more operational (use) finesse, and a longer lasting value. Proper use must still be understood and practiced.

OK, enough about brand names and sales pitch.

I spend time thinking about small parts made by hobbyists who are NOT pure machinist hobbyists. These are folks who become a casual machinist and use machine tools just so they can make what they need or want for another activities they enjoy.

A hobbyist who wants to make telescope parts or kids’ scooter parts wants to get the job done. Someone making model train parts for a Garden Railway hobby, wants a small bench tool that plugs in the wall outlet and works. Fixing broken or poorly made and fitted milling or lathe machine parts is not part of their fun. For them inferior tools is a great frustration.

Next consider a fine furniture builder (ha!), like me. If I can afford quality, it can be safely assumed I am not interested in constantly rebuilding a low quality cabinet saw or fussing with an inaccurate fence. Once a quality saw is purchased and set up, I want the next ten years to be spent making furniture and occasionally changing the blade. A quality investment pays me in the long run.

So I believe most beginners (and pros) don’t want to take the time to re-build a new purchase just to have a usable tool. Publications and web sites that cater to the Machine Tool Hobbyist (Yes, my own web sites included) show a lot of effort to the Nth degree, on improving the low cost machines. I point out weaknesses or defects to “fix” or features I would like to have, or have just installed. I actually like to spend my hobby time fiddling with the machines to get them “right.” This is probably more or at least equal to the amount of time I use them. This “fix it” impression can be intimidating to a first time machine buyer just wanting to make a custom part.

The machinist hobby is one of the few where the first bought machines can be so poor that they need to be rebuilt to just get started in the hobby. That is going about it all wrong for some buyers. Like I said above, I accidentally promote low quality first time purchase because I show how to make corrections. It is the nature of the hobby of machining, to machine machines but it is not the only way to purchase first time machinist tools.

So there is a “buyers beware” trap out there in purchasing lowest cost mini sized machines. I sell a lot of steel gears to improve popular versions of one of them.

I am not condemning the cheap and fixable approach. Again I admit, I did it that way myself. It’s just not the only way to go. Especially true if you don’t own the tools and machines needed to fix the defective machine’s problems.

Quality micro and mini machine tools are an important consideration for the budget minded hobbyist crafts person and model builder trying to get started in machining. If the project is small, then the machines can be simple, not requiring a lot of quick change gears and expensive options. Options can be added later of course. The micro/mini machines I mention above are well built and easy to maintain and understand. The small size makes them low enough cost that spending more for a quality tool is affordable. This is my reason to stay away from spending the same on poorer quality larger than needed machines.

Bottom line, in a free market, quality is never the lowest price. Broken stuff is sold at the lowest price because it is broken. If the process of creating high quality limits volume (the yield) then the price is driven up by those who can or will pay for the quality of the limited production. DeBeers has played that game with diamonds… forever.

It’s low labor, high speed, high volume, mass production that has made things (which are made that way) low in cost and generally lower in quality. This is the mass production process used when “good enough” is a lot less than slow and deliberate perfection.

One way I reduce cost and maintain quality is to not buy the lowest cost (unless I know how and are willing and capable of fixing the quality issues.) The exception is when the items are EXACTLY the same and the only difference IS the price. I don’t buy more size or features than I need. Small is OK if it fits my task.

I don’t have a 10 inch lathe because I don’t need a 10 inch lathe and if I needed a 10 inch lathe I’d probably want to spend $10K+ for a very good one.

If I were a rich man, Ya ha deedle deedle, bubba bubba deedle deedle dum…

I had an inquiry about how the Taig Spindle could be taken apart and the cartridge used elsewhere. I had to be honest and admit I had never taken one apart to investigate. Taig products are so well built there was never a need to disassemble the spindle.

The new spindles are different than the older versions. The new ones have the cartridge insert from the end. It slides into a machined bore. The old heads have a split case. The pictures here are the old head. Both hold the cartridge in place with a recessed screw into the center portion of the cartridge.

I wasn’t and still not interested in pushing apart one of my ER spindles to view the cartridge. There may be no harm, but if it isn’t broke now, why look for a problem? The old split case is no problem. The side will almost fall off when the bolts are loose. Probably the reason for the change to the new style.

At first look it appears to be four bearings. The center section is not bearings (as far as I can tell). The end bearings are compressed against the center core providing proper bearing pre-load. The pre-load nuts are on the outside against the bearing case. The center section is under compression.

To me it looks like a very elegant design and has been trouble free. First class machining, not like the cheap imports. It HAS to be to run at 10,000 rpm. That doesn’t imply all imports are cheap but few are rated for that kind of speed.

So I suppose you could make your own spindle case if required. I run the spindle at 10,000+ rpm all day with no heat buildup (after initial break-in). Perhaps the cartridge could be pushed faster with bearing cooling. However, for the novice there are other requirements like dynamic balance. There is a lot of mass there.

I read the “speeder” 30,000 rpm spindle adapter on the Tormach machine is really rated to 20,000 rpm. Even then, they have had to resort to dynamically balanced ER16 collet nuts to run at that speed. Experimenters beware.

I was exploring some computer programming software information and I discovered this analogy. Is so good, I have to share:

…Simply stated, object-oriented design is a technique that focuses design on the data (=objects) and on the interfaces to it. To make an analogy with carpentry, an “object-oriented” carpenter would be mostly concerned with the chair he was building, and secondarily with the tools used to make it; a “non-object-oriented” carpenter would think primarily of his tools. Object-oriented design is also the mechanism for defining how modules “plug and play.”

I know what I am. What kind of hobby machinist are you?

OK, OK… I have kept this to myself for far too long.

There are lots of wonderful micro machine shop sites on the internet. One of them at the top of my list is called Micro-Machine Shop. Duh? I guess that’s not too hard to remember…

The site URL is http://www.finelinehair.com/home/index.htm.  I didn’t know what fine line hair meant; I assumed it could be something to do with ultra precise measurement.  Alan is a stickler for that, as a machinist should. I shortened the URL and it (he) is linked from a large hair products salon.

Yep, the creator of the site is named Alan. I haven’t found his surname yet, but it may be buried in there somewhere. Maybe he just likes to be more private than myself. No matter, Alan publishes a wonderful site for us machine tool addicts.

Somehow I think Alan has more tools and variations and measuring devices than actually exist in the world. Just take any major supply catalog like J&L, Enco, etc. and order one of each on every page. He must own both companies. In any case, he doesn’t have a big investment in full size machines (hence the name “micro-machine shop”) but there is no shortage of accessories.

Many getting started machinist ask me what machines are best for the money they have. You will see here it is not the machines that require the most money; it is what you add to them. Alan has far more money and time than I can ever hope to invest.

Did I mention his photography is nothing less than extreme topnotch?  Alan does in pictures what I do in words. In other words, about 1000 time more.

This is a highly recommended machine tool site to visit and bookmark. You will be very pleased I finally told you, but perhaps you already knew…

UPDATE: New URL

http://www.micro-machine-shop.com/

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