Search found 146 matches

by johnfreese
Tue Apr 23, 2019 1:27 pm
Forum: General Discussion
Topic: Gear sources
Replies: 6
Views: 217

Re: Gear sources

Check the eBay vendors. They will be 20* pressure angle and metric module.
by johnfreese
Tue Apr 23, 2019 1:24 pm
Forum: Milling Machines
Topic: New to me Bridgeport clone!
Replies: 19
Views: 256

Re: New to me Bridgeport clone!

The real purpose of the door or opening in the column is core print. There is a very large core in the mold and it takes large core prints to keep it stable.
by johnfreese
Thu Apr 18, 2019 1:26 pm
Forum: Milling Machines
Topic: titan machinery milling machine defect
Replies: 9
Views: 299

Re: titan machinery milling machine defect

I suspect the head may have been out of tram in Y and with no adjustments for that condition someone rtied to fix it with a grinder. If you bought this machine from a dealer you should definitely return it.
by johnfreese
Mon Apr 08, 2019 5:18 pm
Forum: Lathes
Topic: holesaw on a lathe
Replies: 11
Views: 694

Re: holesaw on a lathe

The plates are larger than your chuck. How are you holding them on the lathe?
Running that size hole saw on the lathe was a wise choice. Most drill presses run way to fast for large hole saws.
by johnfreese
Thu Apr 04, 2019 7:03 pm
Forum: General Discussion
Topic: essential tools for milling
Replies: 20
Views: 965

Re: essential tools for milling

Sooner or later you will need an angle plate. An edge finder and wiggler are near necessities.
Consider screw machine length drills instead of jobbers. They are really handy when you have limited headroom.
by johnfreese
Mon Mar 25, 2019 5:39 pm
Forum: General Discussion
Topic: Clockwise Anti - Clockwise To Undo Machine Spindle Nuts
Replies: 17
Views: 997

Re: Clockwise Anti - Clockwise To Undo Machine Spindle Nuts

The hand of the thread may have been chosen so the nut will not work loose when the spindle is operating. I figure both heads turn in the same direction. Expect one to have a RH nut and the other to have LH. Try turning the nut in the direction the spindle turns.
by johnfreese
Sun Mar 24, 2019 7:35 pm
Forum: General Discussion
Topic: Can you help identify these items?
Replies: 5
Views: 649

Re: Can you help identify these items?

There were lathes larger than watchmakers lathes that used that style tool slide. One name that comes to mind id Derbyshire. I know Pratt &Whitney made a lathe that used that style tool slide. I used one in the school shop in the 50s. As I remember it had about a 10" swing.
by johnfreese
Sun Mar 24, 2019 7:25 pm
Forum: General Discussion
Topic: The Cheap Tool guy got me...
Replies: 11
Views: 949

Re: The Cheap Tool guy got me...

Many sellers state which thread is used. Don't buy from those who don't.
by johnfreese
Sun Mar 24, 2019 7:19 pm
Forum: General Discussion
Topic: Self Tapping Screws Don't Self Tap
Replies: 9
Views: 702

Re: Self Tapping Screws Don't Self Tap

There are various types of self tappers. Some cut a thread. Some form a thread. Anf then there are sheet metal screws. A photo of the screw would help.
by johnfreese
Sun Mar 24, 2019 3:51 pm
Forum: General Discussion
Topic: Vice sizes
Replies: 5
Views: 576

Re: Vice sizes

FYI, Stefan Gotteswinter, a prolific author of You Tube videos uses the screwless vise on his mill. I believe he has a Rong Fu RF45 mill. By profession he is a toolmaker so he should know what he is doing. I should add that I don't think I ever saw him taking heavy cuts with large end mills.
by johnfreese
Sun Mar 24, 2019 3:43 pm
Forum: Lathes
Topic: I bought a Lathe
Replies: 41
Views: 1898

Re: I bought a Lathe

Too many of the standard parts for the lathe are missing to make it practical to restore. Remove the carriages, add a tailstock, and make it a wood lathe.
by johnfreese
Sun Mar 24, 2019 3:33 pm
Forum: General Discussion
Topic: Teeter Totter finger for dial indicator
Replies: 20
Views: 1027

Re: Teeter Totter finger for dial indicator

There were 3 eBay links posted. The first two were attachments that fit the back plunger indicator only.