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Hi: They use this type of turn table to make molds and patterns before CNC. The cross slides allows you to mill a square or simuliar shape with round corners moving the part around on the turn table and reclamping it each time. A real time saver in its day. They even made a K & T rotary...

Thanks for the nice video and excellent job. I was happy to see that it would idle down to a slow speed. Bill

Hi Mike: It looks like you did get out to the shop!!! God's blessings Bill Thomas

Hi Ted & All: It has been a while (1954) since my high school metaluregy class but if I am right the last two digits 39 stand for percent of carbon and the ability for it to harden. 39 is close to the 40 of 4140 a very common steel for hardening, so I think this is why it worked so well...

Hi John: If you look in the Machinery Handbook for a running fit I think you will find you need .002-.003" clearance between the shaft and the bore. if you have a vert. mill just set it up and skin one bore then flip it over and do the other bore. Be sure to indicated them close in...

Hi Terry: I forgot to tell you if you mount the end of the crank in a four jaw chuck and work between it and a steady rest in the middle of the crank you will have a much stronger setup to machine the mains. You may not be able to do this with the steady rest on the middle main for lack...

Hi Terry: Excellent work. From my experience on full scale cranks I would recommend you leave .005" to .010" on all the main and pin diameters till after you have finished the sides of the pins and mains. Also I would indicate the side movement of the cheek closes to the tailstock when you...

Hi Brian: Really nice job of clean up and display. I was wondering what you did with the Thumper engine as I did not see it. You said you did build hot rod and I was wondering why as a hot rodder you didn't do to the Thumper like you would a hot rod and put multiple carb's on it for...

Hi Ian: Would 70 years of machining experience be enough for me to qualify? I had worked in more shops when I graduated from high school (3) then the leader-foreman in the last shop I worked in last year. I like to do the whole run from design, build, and runoff of a tool (hand tool, golf...

Hi Ian: In Most system with the two dimensions at the limit would double the tolerance on the 80 mm dim. That would be the case if the two limits (1) the bar long by 0.1 mm and the 20mm dim. short by 0.1 mm for a dimension of 80.2 mm and (2) the bar short by 0.1 mm and the 20mm dim. long...

Hello Mr May: I know of a couple foundries that cast cast Iron. The one is in Pa. and the other is down south not to far form New orleans. Do you know of one closer to Lansing or Detroit Michigan that will do only a few pieces at a time? Thanks in advance...

Hi Awake: Would you mind telling us your source for the gear cutters and do they have them in the pitch type? Thanks for the design. I may use it if I get a cutter or set to machine special gears for my lathe...

Dave: I sold the tools to a wholesaler that required $2,000,000.00 Lib. ins. The tool was for auto repair, had the tool been for the medical field it would have cost five to ten times as much. Bill

Hi Richard: One of the reason people cant stay in business is the cost of taxes and insurance. The last year I manufactured special tools my insurance cost more then my gross income. I worked a side job to live on. And my tool I sold was safer the a pair of pliers as the jaws could not...

Hi Mike: Don't expect to go there till after June 12, 2020 because the state is still in a state of shut down till then. In fact you may not hear from them very soon. Staying low in home in Michigan USA Bill Thomas

Hi All: Some information that may help you with your drawing problems. First the copiers at many library can make up to 11" X 17" copies and prints. The copiers can also enlarge and reduce in size. Also, many can print from the Libraries computers if you down load a file off line to it...

Hi Richard: Sure GM's going under was planned, they even paid the guy $2,000,000.00 when he retired. He grabbed the salary peoples retirements because of all the stock going broke. Did you see how it went up and down as the company was going broke so those that new about it could get rich.

Sir: For your information Crosley built their Diff. (Rear end) with bevel gears that can easily be machined without special machines.

Hi All: I can say from experience that GM is no better then the others. It has a lot to do with the supervisors. I was told it was my job as a machinist but the other machinist was paid the 10% saving $10,000 check for scrap parts and I processed over 3,000 parts with special tooling I...

Andy (awake) Would you mind telling us what kind of carburetor and the engine you were setting the timing on? Also, about how slow of RPM was you able to get it to Idle? Thanks in advance for the information as it will answer my thoughts on how slow can you Idle an engine...