Search found 439 matches

by Magicniner
Thu Aug 16, 2018 10:38 am
Forum: General Discussion
Topic: Machining Setup's with Few Comments
Replies: 62
Views: 10385

Re: Machining Setup's with Few Comments

Build or buy a Roller Box instead, a couple of 1/8" long test cuts on your chosen stock to set the roller box up and then the job is a single pass, for as many parts as you need from the same stock ;-)
by Magicniner
Wed Aug 08, 2018 4:04 am
Forum: General Discussion
Topic: Bolt stretch
Replies: 47
Views: 913

Re: Bolt stretch

The best way for re-usable fasteners is to mark the orientation of the fastener, loosen it and then torque it back up to a test figure and see if it reaches the marked point of rotation, loosen again and repeat with increasing torque until you get the fastener back in the same orientation. You won't...
by Magicniner
Thu Aug 02, 2018 10:47 am
Forum: Lathes
Topic: Hand grinding tool bits
Replies: 11
Views: 659

Re: Hand grinding tool bits

The pedestal grinder in the first workshop where I did any tool grinding had a built in water pot, I can't remember but I think it was part of the stand.
by Magicniner
Sun Jul 29, 2018 5:37 pm
Forum: The Junk Drawer
Topic: Splinters and Oily fingers
Replies: 9
Views: 406

Re: Splinters and Oily fingers

Splinters are always more sensitive when brushed in the direction forcing them into you, I find that and then use a razor to shave the skin in the opposite direction, picking up and dragging out the splinter in the process.
by Magicniner
Sun Jul 29, 2018 5:24 pm
Forum: The Junk Drawer
Topic: Tesla cars
Replies: 29
Views: 1287

Re: Tesla cars

NP317 wrote:
Fri Jun 29, 2018 10:44 pm
I suspect that car fire statistics show that gas fueled cars burn far more often that battery powered cars.
And yes, SpaceX appears to be our leading space launch company, bar none.
More power to 'm.
~RN

But when viewed as a percentage of electric cars in use what do the stats look like?
by Magicniner
Mon Jul 16, 2018 6:09 pm
Forum: General Discussion
Topic: Spring making, coils folding over... help?
Replies: 7
Views: 430

Re: Spring making, coils folding over... help?

I make springs that people want to buy BTW. :D
by Magicniner
Mon Jul 16, 2018 5:59 pm
Forum: General Discussion
Topic: How to Steady Small Parts on Workbench?
Replies: 23
Views: 2598

Re: How to Steady Small Parts on Workbench?

I have a bowling ball with a flat on it made with an electric planer and tapped holes on the flat. I sit the bowling ball in a golf trolley tyre on the bench and mount the vice or tooling plate of my choice on the ball. I can hold or clamp anything from a dressmaker's pin to a complete pistol with a...
by Magicniner
Mon Jul 16, 2018 5:43 pm
Forum: General Discussion
Topic: Spring making, coils folding over... help?
Replies: 7
Views: 430

Re: Spring making, coils folding over... help?

Show your winding technique, not the results!
Otherwise we're guessing, but as a guess I'd say your wire guide is too far from the work and is allowing variable spring at the point the wire is being wound.
by Magicniner
Fri Jul 13, 2018 2:20 pm
Forum: Milling Machines
Topic: Milling Pockets
Replies: 11
Views: 597

Re: Milling Pockets

Also, if you use a 2-flute cutter, it won't deflect sideways when it is cutting the sides. This to me is a bit misleading, all cutters will deflect. That's why I specifically said "sideways". When the flutes are in contact with the sides, there is no cutting edge in contact with the end of the slot...
by Magicniner
Sun Jul 08, 2018 4:23 pm
Forum: General Discussion
Topic: Foredom Pedal With Dumore Drill Press?
Replies: 20
Views: 739

Re: Foredom Pedal With Dumore Drill Press?

The instrument does, yes (unless you consider the standard cell part of the instrument, in which case it has only two). You've clearly confused a Leeds and Northrup type instrument with more general potentiometers which both pre-date and post-date the instrument, your argument that the instrument t...
by Magicniner
Sun Jul 08, 2018 4:12 pm
Forum: General Discussion
Topic: Foredom Pedal With Dumore Drill Press?
Replies: 20
Views: 739

Re: Foredom Pedal With Dumore Drill Press?

A potentiometer has 4 connections? :D
by Magicniner
Sun Jul 08, 2018 4:04 pm
Forum: General Discussion
Topic: Foredom Pedal With Dumore Drill Press?
Replies: 20
Views: 739

Re: Foredom Pedal With Dumore Drill Press?

John Hasler wrote:
Sun Jul 08, 2018 2:00 pm
If you want to get pedantic a potentiometer is a device for comparing an unknown voltage to a standard cell.
With how many connections?