Friday, March 23, 2018

Getting The Most Out Of Your Abrasive Tools

So from Delta Manufacturing Co. comes this small manual dealing with grinders, belt, and disc sanders. Delta published many "Getting The Most Out Of Your . . . ." manuals covering most shop machines. More than one edition of each manual was published, this one was from 1939.

I have Lindsay's reprint of this copy, but I had a small file on disc. The pictures have a pinkish tinge to them but otherwise its a good copy. Some good information, jigs and tips for operating this equipment here, regardless of brand.

To download go to my Books - Free Downloads page. #51 - 4 MB - pdf

Bandsaw Resawing

So 17 years ago when I built this place and moved in, an unavoidable disappointment was the slow dial up service out here, combined with my old computer system it made for some very slow browsing. So for the first 10 years or so I made up word files of most of the woodworking, metalworking, and diy sites I browsed. I accumulated thousands of files. It was great in hind site, since many of those sites no longer exist, except on the Internet Archive's Wayback Machine. And in a way I guess I have a Wayback Machine of my own, to bring back many of these articles.

So here is a file I thru together many years ago, I could have straightened the lay out better before converting it to pdf today, but the info is all there for the interested. The file named "Bandsaw Resawing" covers resawing methods and info from three sites and a couple more nice articles on setting blade tension and setting up the bandsaw. If you own a bandsaw you will find something of use here.

To download go to my Books - Free Downloads page. #50 - 2 MB - pdf

A Charcoal Kiln

So here is another reprint from Lindsay Publications, "A Charcoal Kiln Made Of Cinder-Concrete Blocks". The Connecticut Agricultural Experimental Station developed and published the design back in 1946. If you have the hardwood and the need for charcoal, barbecuing, forge and smithing hobby, or foundry hobby this design will provide lots of lump charcoal relatively cleanly ( a process that is normally quite dirty, I still remember the charcoal mounds still in use back In Portugal, when I was a child). It is large enough that if you have a market to sell into, it will provide a modest supply.

You get good building instructions along with very informed operating procedures and a set of drawings to guide your construction.

To download go to my Books - Free Downloads to download. # 49 - 6 MB - pdf

Wednesday, March 21, 2018

Canadian Machinery 2

So I managed to get through the best parts of the first two volumes of "Canadian Machinery" Lots of excellent articles on the foundry, the machine shop, power generation, steam engines, IC engines, producer gas plants and engines, lots of pictures and stories of the new machinery being produced in Canada and the US. Regular monthly serials on Machine Shop Methods and Devices, Developments in Machinery, Power Generation and Applications, and Foundry Practice and Equipment.

One very interesting article, illustrated with lots of pictures, the engineering learning facilities at McGill University in Montreal back in 1908. Amazing, there were huge industrial size electrical labs, engine research labs, a huge foundry with cupolas and an industrial size pouring floor, and a blacksmith shop with over a dozen forges and supporting equipment. Boy, you will not find that anymore, even the high schools are fazing out their shop installations nowadays, replaced by coding labs no doubt, and one day even coding will be replaced by IT robots. We will all be in trouble then, the robots will not need us anymore. lol.

So here are a handful of tips and jigs from the Machine Shop and Devices serial and a few more pictures of machinery from the first two volumes.

Click images for best view.

I have tried this. A little rough, but if you take your time, in a pinch it works.

Nice time saver.

If you have seen this before, then you know where the plans are Advanced Projects.

If I get around to making a muller, there are some ideas here I would want to include.

King Machinery is headquartered in Montreal. Are they the same company?  Didn't check the company history but wow long lived if it is.

For those familiar with Dave Gingery's milling machine it's easy to see where some of the ideas for his design came from. Many versions of this universal were built in the early part of the last century.

They built them heavy back then.

This is about as big as the shaper got. I have seen newer pictures of a 36" stroke in a navy manual .

A picture of the Smith shop at McGill University in Montreal in 1908.

Fortunately the sad state of affairs in engineering training I mentioned earlier may be overstated. I found this picture on the web a few years back. The picture is of an engineering lab at an American mid-western University.That is a shop built mini-cupola, looks like 10" bore with pre-heated blast air built in. Brilliant white indicates good iron temperature, fuel is coke no doubt. Very nice.

Monday, March 19, 2018

Canadian Machinery

So I spent the morning rediscovering my collection of Canadian Machinery magazine from early in the last century. I quickly found out why I have not touched them for the last ten years. They are addictive, once you get started it's hard to stop. I have over 2.2 gigs worth, from vol. 4 to vol. 25-21 so getting through the collection involves months not days.

Canadian Machinery paralleled American Machinist early in the last century and contained similar subject matter with a Canadian twist. The companies profiled, new machine designs and manufactures and the workshop and foundry articles where all from a Canadian view point. The shear number of new machinery displayed in each issue is astounding. Some very nice hunks of iron were being produced back then. The art of sand casting was in its hay day and what better way to display it than in the machinery being produced.

Recall the lathe gear milling attachment in the post Workshop Eye Candy, well here is his much older and larger brother. This much larger attachment does the same and more and is vertically adjustable to produce a greater variety of sizes depending on the swing of your lathe.

A fine example of a 16" engine lathe in 1908.

The chain drive never caught on, but what these guys did with a monster hunk of iron is nothing short of beautiful.

Boy heres one I would love to have, a very nicely proportioned mid size shaper.

And here is my new set of bench rolls, lol.

There are lots of good articles in every issue covering machining procedures tips and tricks, casting and foundry work, pattern making and molding methods and many other industrial processes. Interesting articles such as running engines on wood producer gas and on and on. I'm sure I will be uploading much more from these fine old magazines.

Here is an article on molding machine practice that accompanied a picture and write up on a new molding machine.Click twice depending on your monitor size for best view.


Sunday, March 18, 2018

Book Review - Wood's "Woodworking Tools You Can Make"

In 1991 Wood magazine and Meredith Corporation published "Woodworking Tools You Can Make". The book is a collection of projects featured in Wood magazine between 1980 and 1990. If you are familiar with Wood magazine you will know that there are some very nice plans and workshop ideas featured in this magazine. This book is a collection of the best tools and workshop storage ideas featured in the magazine for that decade. Here are the contents and some pictures.

Plans are very complete, taking you through the build process step by step. Material lists and sources are also very complete, and often include kit sources for assemblies that require machined components, such as the headstock and tailstock spindles for the lathe. That was back in the 80's so it is doubtful these sources are still available, but alternatives can be found,  such as replacement parts for conventional machines, or you can always make your own if you have the means.

The book can be found in the used market, where I found this, like new copy. Failing that, all the plans were published in Wood magazine as mentioned above, back in the 80's. I mentioned the lathe to a person on a forum and the issue it was in, a while back. He quickly found the copy (if it was a paper copy, he didn't mention it) on line, so they are out there.

If I am feeling ambitious and my site is still up, I will scan and share the book towards the end of the year.


Update (Tip) To the Gingery Speed Reducer.

If like me, you like and build Dave's speed reducer in "Simple Lathe", here's a tip that will save lots of  quarters from your curse jar (lol). The step pulleys in the counter shaft, and most good lathe head stocks, are enclosed between inboard and outboard bearings. Changing a worn belt or moving the counter shaft involves dismantling one or both of these assemblies. The solution is using a link belt for these drives. Like this:

Link belts grip well and are long wearing. Price is higher than your average belt but well worth it for special applications, such as this. The higher price is no doubt due to the many pieces per ft. of belt required. The idea has been around for a very long time so patent rights are long expired.

This add came from the Busy Bee flyer and they are available from most drive component suppliers.

Comic Relief:

Disclaimer: Busy Bee provides no free-bees or discounts for this mention, beyond providing me with a regular flyer to entice me with pictures of all of their workshop candy (lol).

Saturday, March 17, 2018

Advanced Projects For The Home Foundry And Machine Shop

As mentioned in a previous post most engineering drawing and design books have a "Working Drawings" section featuring many examples of shop or pattern shop ready plans for different items, some still commercially available.

This is usually my favorite section and one of the reasons I have so many of these texts in paper and on disc. So for the sake of sharing I made up a file of some of these projects assembled from my paper texts, maybe I will make one up from the titles I have on disc in the future.

As mentioned in the file most of these are advanced projects, most will require a full range of foundry skills and machining abilities. Not to put anyone off, but to grow your skills and keep the shop from getting mundane, you need to challenge yourself occasionally.

So I hope someone tries some of these, the drill press vises are an easy start. One of my first casting projects, many many years ago, was the # 2 drill press vise in the file. The aluminum jaws where easy to work without machinist machines, as was the case back then. The wood turning lathe,disc sander, and hand tools such as taps, dies, hacksaw, and files did a fine job.

To download the 40 page file click Advanced Projects For The Home Foundry And Machine Shop. 5.4 MB - pdf.

Thursday, March 15, 2018

"Turning Metal On A Simple Lathe"

Many woodworkers who turn wood often have need to do the occasional metal turning such as facing a face plate or making or modifying a turning tool. For a woodturner focused on his craft, the higher cost of investing in a metal turning lathe is prohibitive.

Back in 1985 Lindsay Publications printed John Maloy's "Turning Metal On A Simple Lathe". By "Simple Lathe" he means a woodworking lathe. The concept is not new, it has been done since lathes first existed with mixed results. What John does here is clarify the procedure and provides info on producing the tools with modern materials and the methods of using them. He finishes off with an example of a model pipe T engine cylinder.

I have turned aluminum face plates and shafting on wood turning lathes. My Delta/Rockwell variable speed lathe came with a cross slide attachment and I have used it to turn the commutator on my tractor starter successfully. I have never tried it, but with care and John's instructions I don't see why steel can't be turned as well.

There are two main requirements The gravers, which John shows you how to make, and a speed reducer to get your lathe speed down to the 300 rpm range. Pictured below is Dave Gingery's plan for a lathe speed reducer from his book "The Metal Lathe". There are many different plans around the web for speed reducers but I do like Dave's plan.

If you want John Maloy's interesting little manual click Turning Metal On A Simple Lathe to download. 3 MB - pdf.

Click images to expand, click again for best view.

Most people are familiar with Dave Gingery's "Build Your Own Metal Working Shop From Scrap" series. Chapter 6 in book # 2 "The Metal Lathe" is a plan for the motor mount and speed reducer. I like this plan, it is easily built. A hack saw, portable drill, and vise is all that is needed and the offset lock and release is quick and easy to operate. It is easily mounted on other machines, where speed reduction is wanted.