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Boot
06-12-2010, 07:51 PM
I hope I can paste these picture in here. I made this thread dial instead of buying one for $100. It took about $10 worth of steel and a couple of rainy days in my workshop. I cut the gear straight not at an angle and did not hob it but file the tops of the teeth to engage the leadscrew easier. Plans from a 1941 Popular Science article showing how to make fixture to cut gear made the difference. The housing was about .125 too long and I had to shave it off with my new HF miller. It works like a boughten one. And it wasn't hard to do. Next I will make a Steadyrest instead of paying the bandits $150. Thank you , Boot <a href="http://s750.photobucket.com/albums/xx142/Boot-010/?action=view&current=DSCF0857.jpg" target="_blank"><img src="http://i750.photobucket.com/albums/xx142/Boot-010/DSCF0857.jpg" border="0" alt="Photobucket"></a>http://i750.photobucket.com/albums/xx142/Boot-010/DSCF0857.jpghttp://i750.photobucket.com/albums/xx142/Boot-010/DSCF0857.jpg

dockrat
06-12-2010, 07:57 PM
Here ya go but you should size your pics down some to post in here

http://i750.photobucket.com/albums/xx142/Boot-010/DSCF0853.jpg

http://i750.photobucket.com/albums/xx142/Boot-010/DSCF0857.jpg

http://i750.photobucket.com/albums/xx142/Boot-010/Gearcutting51310.jpg

Boot
06-12-2010, 08:25 PM
Here ya go but you should size your pics down some to post in here

http://i750.photobucket.com/albums/xx142/Boot-010/DSCF0853.jpg

http://i750.photobucket.com/albums/xx142/Boot-010/DSCF0857.jpg

http://i750.photobucket.com/albums/xx142/Boot-010/Gearcutting51310.jpg
Sorry I messed that up. I didn't seem to have as much trouble the last time I posted a picture. I'll try harder next time . Thankyou again , Boot

MichaelP
06-12-2010, 08:32 PM
Now it's my turn to hit "QUOTE" and post the pictures for the fourth time.:D

Nice work!

miker
06-12-2010, 09:50 PM
Really good result boot!

Is the info for thePopular Science fixture online, or did you have the article?

Rgds

Mcgyver
06-12-2010, 10:42 PM
looks very good - way to go

Boot
06-13-2010, 09:05 AM
Really good result boot!

Is the info for thePopular Science fixture online, or did you have the article?

Rgds
I got the plans from the Pop Sci Archives online. They were in the November 1941 magazine article. I modified somethings to make it easier. I made the dial from two pieces instead of cutting a 1 5/8 cr shaft down to 1/2". Made the outside housing the length required which was about 1/8" too long . Overall length for my lathe was given as 3" It should have maybe been about 2 7/8". Someone over on the Practical Machinist site pointed me to the plans. Gary Hansen I believe. I would also have made the gear from brass or al if I had it. Of course the steel gear will hold up longer if I let it engaged all the time. I won't for fear of wear on leadscrew.

biometrics
06-14-2010, 08:32 AM
Very Nice work... thanks for sharing.

Jim Doherty
06-14-2010, 11:44 AM
awesome job Boot, looks professional.

Jim Doherty

Your Old Dog
06-14-2010, 11:55 AM
I was under the impression you were new to all this maching stuff and I thought you were nuts to undertake the project! Guess you showed me and anyone else with doubts! Great job and look forward to seeing your other projects.

Boot
06-14-2010, 09:11 PM
I was under the impression you were new to all this maching stuff and I thought you were nuts to undertake the project! Guess you showed me and anyone else with doubts! Great job and look forward to seeing your other projects.
I worked in a machine shop for 37 yrs. I started as a Machine Operator and ended up when the place closed as a "A" Machinist class in a union shop. I ran everything up to and including CNC vertical turret lathes with 60" tables and 12 station tool changers to a Mazak 6 table VMC. We had a Vertical Boring mill I ran that had a table/chuck of 13 feet in diameter made for Simmons of NY by Checs. I could drive a truck on it clamp it to table and cut it in half. We made parts for chemical and food centrifuges and also sewage treatment plants. Big stuff. Company was Dorr-Oliver Inc of Stamford , Ct. I also worked at Foster Wheeler for a while making boilers for ships and nuclear power plants. I making the steady rest for my lathe right now. Rainy days project. Boot