Search found 1805 matches

by tornitore45
Sat Oct 27, 2007 6:16 pm
Forum: General Discussion
Topic: Cutting Internal Keyways
Replies: 5
Views: 1668

Thank you Fender, you got the right article.
Thanks to Capt Turk and all willing to help.
by tornitore45
Sat Oct 27, 2007 6:05 pm
Forum: General Discussion
Topic: battery acid - use and storage
Replies: 11
Views: 3392

http://www.coastalscents.com/cfwebstore/index.cfm Do not be surprised by the web as it opens, it shows a good looking blonde. Amuse yourself with the applications suggested but in the end it was the cheapest source I found. Or you can google for "Citric Acid" and find lots of places. Is used in cosm...
by tornitore45
Sat Oct 27, 2007 9:20 am
Forum: General Discussion
Topic: Cutting Internal Keyways
Replies: 5
Views: 1668

Cutting Internal Keyways

I remember a description of a procedure to cut keyways in pulley bore. The procedure described some kind of bushing to back up the tool from flexing. It was not a general purpose tool like the hand lever, the adapter was machined for just the specific tool size and bore size. Searcing for "cutting k...
by tornitore45
Thu Oct 25, 2007 8:20 pm
Forum: General Discussion
Topic: battery acid - use and storage
Replies: 11
Views: 3392

Why use H2SO4 when Citric Acid works as well and is not as nasty? You can buy Citric Acid on line for a few buks, it comes in a bag, looks like sugar, and taste like one of those "sour candy". If you have indigestion you mix a bit with wather an Bicarbonate; and you feel kinky you can add it to a ba...
by tornitore45
Wed Oct 24, 2007 7:41 am
Forum: General Discussion
Topic: Preventing rust
Replies: 25
Views: 4074

As far as energy lost to light radiation... An incandeshent bulb running at rated voltage emits 90% heat and 10% light. When running at 1/2 voltage we are talking about 0.1% light and 99.9% heat. I may be wrong with the exact number but the relative order of magnitude is on target. The radiation is ...
by tornitore45
Fri Oct 19, 2007 9:31 pm
Forum: General Discussion
Topic: Preventing rust
Replies: 25
Views: 4074

Preventing rust

I mount a 40W light bulb near the bottom right of the chip catcher. To increase the life of the bulb I splice a small diode (1N4004) in series with the HOT (black) wire. The power should be 1/2 but since the filament is much colder the resitance drop therefore is somewhere around 75% or so. 30W 24/7...
by tornitore45
Fri Oct 19, 2007 9:15 pm
Forum: General Discussion
Topic: Drawbar "tightness" and cleaning question
Replies: 8
Views: 1439

I am not convinced that R8 are selfreleasing. From a limited experience on my X3 mill, I snug the R8 EM Holder just barely and it always take a good wack with the mallet to release. As for collets holding power, R8 collets do not hold the EM wery well, I use them only for the spotting drill; small E...
by tornitore45
Thu Oct 11, 2007 9:58 pm
Forum: General Discussion
Topic: How to choose a used granite surface plate?
Replies: 25
Views: 5704

Thanks for the plate glass explanation. I like a piece for layout work with a surface gage. I guess precision is limited by the scribe line long before the glass surface come into play. Is plate glass something availble from the typical glazer shop or a special product? What is a common application ...
by tornitore45
Thu Oct 11, 2007 9:24 pm
Forum: General Discussion
Topic: How to choose a used granite surface plate?
Replies: 25
Views: 5704

It has to be plate-glass, though - not thick window glass.
Could you explain the difference?
by tornitore45
Sun Sep 23, 2007 4:57 pm
Forum: General Discussion
Topic: Mking a test Bar
Replies: 9
Views: 2224

OK I am sold to the idea of chucking any old scrap and turning the cone.
The idea of a pipe is so darn simple, I am going to tale a 1/2" plumbing pipe and two caps. The caps are made of some machinable steel or cast so should turn a good finish.

Thank you all.
by tornitore45
Sun Sep 23, 2007 4:42 pm
Forum: I.C. Engines
Topic: Question about the scaling of ignition components.
Replies: 6
Views: 5318

The consideration about volume and flame propagation was my last hope that some scale factor could apply. Agree that a hotter the spark can't hurt and will provide margin for all the variables working agains ignition with a minimum energy spark. My concerns are due to the ability to design and built...
by tornitore45
Sat Sep 22, 2007 9:12 pm
Forum: I.C. Engines
Topic: Speaking of model engine ignition systems...
Replies: 8
Views: 11263

Jerry web site says the coils are desighed to work between 3.6V and 6V and must have 1 ohm. That means that when the engine is running at low speed the current during the dwell time is most likely limited by the resistance since the primary inductance has had all the time to charge. 3.6/1=3.6Amps an...