Search found 1698 matches

by tornitore45
Thu Sep 12, 2019 6:50 am
Forum: General Discussion
Topic: Used endmills
Replies: 13
Views: 524

Re: Used endmills

I demote the marginal end mill to slogging through on non precision jobs in Aluminum. And when an end mill has finally had it it is a good piece of HSS to make a special tool for the lathe, or cut the shank to use as a dowel to align the spindle with a hole, or a spacer or a pusher in the wise. Noth...
by tornitore45
Thu Sep 12, 2019 6:41 am
Forum: Riding Scale Railroading
Topic: Battery Life
Replies: 6
Views: 324

Re: Battery Life

Lead acid battery life is not just a matter of time is related to the warping of the plates that come with cycling, heating, cooling, surge drain, jolts and vibrations. All of the factor shake off bits of the plate or the PbOxide paste that accumulates on the bottom. Eventually the detritus mound up...
by tornitore45
Mon Sep 09, 2019 11:47 am
Forum: General Discussion
Topic: The home shop machinist, health of the hobby
Replies: 75
Views: 12996

Re: The home shop machinist, health of the hobby

The legendary prosperity of the US multiplied by the length of time it had to act has created a large population of inept both in the manual ability and intellectual department.
People in the poorest countries are the most resourceful because the dumb and the lazy will not survive or attract a mate.
by tornitore45
Sun Sep 08, 2019 4:52 pm
Forum: The Junk Drawer
Topic: Vampliers
Replies: 12
Views: 411

Re: Vampliers

When I saw an ad for Vampliers years back it was near Christmas. Knowing how difficult is to shop for a dad "that has everything" I sent a link to all three of my children that said: "I like one of these for Christmas but do not need 3, figure it out among yourselves" I got two, one engraved with my...
by tornitore45
Wed Aug 21, 2019 2:56 pm
Forum: General Discussion
Topic: S&H charges
Replies: 29
Views: 2096

Re: S&H charges

I received an e-mail saying the CC charge did not go through, AFTER receiving the order. I called back and told them they are the only company doing that. They said "you ordered before, we know you". MMC is a big business serving business where speed is valued more that shipping cost. They are set u...
by tornitore45
Sat Aug 10, 2019 6:49 am
Forum: The Junk Drawer
Topic: how to use youtube?
Replies: 12
Views: 1464

Re: how to use youtube?

they have bills to pay,
Google made 9.4 Billions tax free profits last year. That is a little bit more than paying bills.
by tornitore45
Sun Jul 14, 2019 4:04 pm
Forum: General Discussion
Topic: Push Drill Bit Compatibility
Replies: 9
Views: 1364

Re: Push Drill Bit Compatibility

I would not mess with push bits. For leather you can make a tube punch on any dimension on your lathe and use the DP, the mill or a hammer.
by tornitore45
Fri Jul 12, 2019 3:45 pm
Forum: General Discussion
Topic: Needing a gear
Replies: 17
Views: 2262

Re: Needing a gear

You have a spare gear right there. Cut the gears free, re-bore and make a new shaft. Assemble with Loctite.
by tornitore45
Mon Jul 08, 2019 9:59 am
Forum: I.C. Engines
Topic: I do not understand cams
Replies: 4
Views: 749

Re: I do not understand cams

I broke down, analyzing the geometry right now.
by tornitore45
Mon Jul 08, 2019 7:43 am
Forum: I.C. Engines
Topic: I do not understand cams
Replies: 4
Views: 749

Re: I do not understand cams

The top of the lobe and the base circle are the obvious trivial exception I did no consider to include. The interesting part of the discussion is during the active portion of the cam profile. There is no specific question but knowing which statement is correct and which is not help understand the ki...
by tornitore45
Mon Jul 08, 2019 4:56 am
Forum: I.C. Engines
Topic: I do not understand cams
Replies: 4
Views: 749

I do not understand cams

Think of a round flank cam with a flat poppet. Where is the contact point tappet-to-lobe? Is not on the poppet axis, a simple look at the geometry deny that. If the cam turns CCW the lift point is somewhat to the right of the poppet axis. (poppet is above the cam) How far to the right? That depends ...
by tornitore45
Sat Jul 06, 2019 11:21 am
Forum: Lathes
Topic: Wacking the Morse taper out of the spindle
Replies: 15
Views: 3856

Re: Wacking the Morse taper out of the spindle

My late does not have a collet adapter, there is no shoulder to allow for a splitter type tool to work. I had since build a pusher cap-nut that treads on the left side of the spindle and pushes the draw bar nut that has been loosened a couples of turns. All force is placing the spindle in tension bu...