Monday, August 13, 2007

Aquiring and setup of the lathe part 2

The lathe as you see it here (upside down) weighs 70 pounds plus a couple for the piece of wood. First step was to get it off the wood. The instructions said to fasten rubber legs to the lathe after adding the chip tray. Then a little further the instructions said it is best to anchor the lathe to a firm foundation such as a table. Since I happened to have such a table, I decided to do it that way. The instructions also said that they did not furnish bolts for this necessary fastening so I went to a couple hardware stores and bought some bolts. They were a bit too long so I used the originals. Later I can drill some T-6 aluminum or steel and cut off pieces to use for spacers beneath the table so the too long bolts go in just far enough. (pic 596 and 597)



Using a good drill, a square, a fine ruler, and three sizes of drill bits, I marked off and drilled four 3/8 inch holes then mounted the lathe. By now lifting the 70 pound was beginning to feel like exercise. Once it was mounted, I followed the rest of the instructions which were sparse and in two locations, plus I had previously read Mini Lathe User's Guide from The Little Machine Shop. The guide said to wipe of the grease and clean the parts with paint thinner then oil. It also recommended some white lithium grease so I bought some at the same time as the paint thinner. I found the grease useful in helping the bolts go where they were supposed to. The greatest challenge was figuring out what was what as nothing had labels and parts were in boxes within boxes, wrapped in bubble wrap, and covered with grease. The pictures with the instructions did not identify parts well, yet I pressed on and got the carriage and cross slide on. (pic 598 and 599)



The lead screw (long horizontal screw in the picture) had to be separated at the tail end (right side) of the bed. Then the carriage was slid on except it would not go on so I loosened some plates on each side enough to get the carriage on the bed and engage the lead screw with the large carriage wheel. Later I removed it all and tightened the bolts some as it was too loose. The instructions said to loosen the piece holding the lead screw at the tail end and adjust it so the half nuts would properly engage the lead screw. I had read about those things in both the Guide and another actual book – Machine Shop Essentials by Frank Marlowe. By closing the half nuts on the lead screw, the alignment occurred and the bolts holding it in place on the tail end of the bed were tightened.

An additional challenge was happening. There were bags of parts such as gears, Allen wrenches, open end wrenches, loose bolts, but they were not all in the same bag. All but one of the Allen wrenches were fastened together while another vital one was hiding among some gears. When the instructions said to put certain gear wheels on the head end of the lathe, they were not in the bag. In fact, they were not even in the same box. They were in another box inside a big red cover for them. Once I found them, they went on easily and engaged properly. (pic 600 and 601)





By trial and error I put levers where they belong (I think) and assembly continued. Actually, I moved a few levers around as I found pictures which suggested I had not put the right one on a location. The Compound Rest where the tool post goes was another challenge; however, by now I had an idea what to do. I got it on and adjusted the gibs to tighten the Compound Rest on the Cross Slide. (pic 602)



The tailstock went on easily after I put the lock back in place. This tailstock has a mechanism to lock it in place on the bed. (pic 603)




The three jaw chuck went on the head end. Easy to do. (pic 604)


After just nine hours of effort the lathe was all together and even ran properly. (pic 606).



Here is a close up of the controls (pic 607). What you don't see is the electronics inside this cover. That was the easiest part of the assembly because I am familiar with electricity and put the wires on right the first time. The plastic piece which is added after the wires and keeps them out of the lead screw was one of those things that three hands can do better than two. It helps a lot to have magnetized screw drivers so the little screws stay around when it is time to put them back on the machine.



This lathe even has a DRO (digital read out) for the spindle speed. A nice touch. (pic 608).



Would I do this again? Yes. Only I could do it much faster since now I know what the parts are. Next goal? Upgrade it, of course. I am going to change the tool post for a very nice quick change tool post from Little Machine Shop. It is made by A2Z company. That is another story…




Tractor Boy

Sunday, August 12, 2007

acquiring and setup of the lathe part 1

Friday, 10 August 2007, five boxes arrived with the machine mini-lathe and accessories. That came from Micro-Mark in New Jersey. Another box came from Brownell's in Idaho containing some known stock for the lathe (T-6 aluminum, and two kinds of steel – all round). Brownell's also sent me Dykem for marking the work, Do-Drill for drilling and machining, and a few tools such as a thread cleaner and a scribe tool. I also got some tap guides from them. A few days earlier Little Machine Shop sent me the bulk of accessories including a dial measuring tool with magnet, boring tools, cutting tools, and a device for making round things (knobs). They also sent me a quick change tool post of good quality to replace the standard tool post which came with the 7X14 lathe. (pic 585)

The first thing to do was set up the table for the lathe which I purchased from Micro-Mark along with the mini-lathe. Surprise! No instructions at all! After studying the design, I assembled the table and had one piece left over. It is to pull the center work space from its hideaway under the table. The table is flat, about a perfect size for the lathe, and even has adjustable feet. (pic 587 and 586)

Once I got the table up it was time to open the packages and look at what I bought. Christmas in August!


Saturday, August 11, 2007

Eureka

I got the lathe put together. It took only 9 hours! It runs too.

I found the instructions wanting. It said put on…. But had few pictures to tell me what it was supposed to look like. The least fun part was when it said to install some gears and they were in a different bag in a different box from the bag of gears I had before me.

The table had no instructions at all.

I took many pictures and will write a story soon for the blog.

I am off to shower. Fortunately I had enough tools. J

Tractor Boy

the beggining of the lathe hobby

The packages all arrived today. After dinner I used a dolly to take them back to my Tractor building and took a picture. Then I opened the box with the table for the lathe – no instructions at all! Fortunately I have an eye and a brain so I assembled it and set it in place. I had a small piece of angled steel left and screws to attach it, but no certain idea where it goes. The holes pre drilled in the top to fasten it to the base were off where the holes in the frame were located so I put in a couple well and put the rest in as best I could. It is surprisingly sturdy. Supposedly the package weighed 18 kilos, but it did not feel that heavy. Tomorrow I open other boxes and assemble other stuff

Tractor Boy


Wednesday, August 8, 2007

New Hobby

Today I decided to take the plunge and ordered a mini lathe from Micro-Mark, http://www.micromark.com/ and accessories from Brownell's http://www.brownells.com/ and from the Little Machine Shop. http://www.littlemachineshop.com/ The lathe is a 7X14 size and cost $535 plus shipping. I ordered a stand or table for it from the same place. From the Little Machine Shop I got the tools, and assorted machinist necessities such as a quick change tool post, steel protractor, and two steel rulers, as well as another dial measuring tool for lathe set up and adjustment. Brownell's sells an assortment of steel and aluminum round stock for making stuff and I bought some sample packs. They also had Dykem for marking, a scribing tool, and many other things I did not order this time. By next week I will be setting it all up in my Tractor Building.

Tractor Boy


Sunday, August 5, 2007

Another rebuild

Little Machine Shop had a sale on the comparator so I bought one. The two inch thick by six inch square granite base is flat to .00005 inches. The gauge measures .001 inch. I may get either another one or a magnetic base with adjustable arm for the metal lathe setup I am going to buy. It is useful in making sure objects are properly aligned. I suspect it will measure run out on a cartridge just fine too.

Yesterday I tackled my church friend's 9N carburetor. He purchased the kit from TS and I told him I would rebuild it. This is the second carburetor job and I hardly even looked at the instructions which I studied and used extensively before. The inside gasket was a mess, all shredded and worn out. I made a tool from a worn out Sawzall blade to remove the brass bolt within the carburetor. I simply have no screw drivers that wide. It worked perfectly. His fuel valve was so dirty I thought the glass bowl was tinted brown. It also cleaned up nicely. Here are a few pictures.


Tractor Boy



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