What does SP & RP mean and I thought MIG stood for 'metal inert gas'. How does gasless give the inert gas shroud? thanks ken _____ I've stopped 2,204 spam and...
... It came through here just fine... -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space,...
SP and RP are Standard (sometimes Straight) and Reverse Polarity respectively. I prefer the terms DC Electrode Negative and DC Electrode Positive, because...
... Pierre, that doesn't tie in with my understanding of electron flow. Conventional current holds that electrons come out of the positive power source. This...
Pat, the best way I've found to to read everything I can lay my hands on, and go talk to people who do this stuff, whatever it is. I've found the yahoo casting...
roy, parting compound is a fine powder dusted over the surface of the model to keep the molding compound from sticking to it. In foundry work, they use a lot...
Gene,I've been reading about casting and foundry work for thirty-plus years. I know what I produce is not professional quality, and won't be for some time, if...
Personally - I always thought that they should have flipped the definition of positive and negative around to match actual flow, rather than try and continue...
Hi Pat, I got a quote from Applied Industrial Technologies of about $130 for a 1 1/2" and $150 for a 2" Axial Thrust Assembly Collars, for a total of nearly...
Paul & Pierre, Thanks, both of you, I understand now Ken _____ I've stopped 2,207 spam and fraud messages. You can too! Free trial of spam and fraud...
Bill, if you are going to try cans , squash them down just as flat as you can get them (I'm not joking here even a little bit) or all you will end up with is...
and waaht about hard disk frame is it good or better jack 47'n 71'W Bill, if you are going to try cans , squash them down just as flat as you can get them...
Any bits that are solid works better than cans. They just oxidize so fast it's hard to actually melt them. If the hard drive frame is aluminum it will work...
I suggest it because I see somebody making a polley whit what it look l ike frame of hard disk 3.5 inch by 1 inch but how we can detect if it is mag or not ...
... Don't remember the test exactly, but somebody posted a suggestion not too long ago--it was either a spark test or a suggestion to cut off a small bit then...
Shave off a piece with a pocket knife. Aluminum will curl off in one piece, magnesium will flake and break. Light the piece with a flame (lighter, etc.)...
Something I am thinking about.. The bed would use 2 pcs. of 3/4 x 5" hrs. bolted to a block head surface with a 2" gap between the bars. A matching slot would...
Hello Pat  I have a design that is sort of like that for my machine.  It is in the photo two block lathe.   Keith Deep Run Portage Back Shop " The Lizard...
Really is! Something I should have added is the need for a grinder setup to make the plate edges smooth and even, also a way to do a nice job of removing the...
Hello Pat  I was planning on useing cold rolled steel for the machine ways.  It is a lot better tha hot rolled and there is no black mill scale on it. It...
Exactly the reasons Dave used it vs HRS originally, right? Closer tolerances, no scale, etc. = less hand work! ... -- Nick A "You know what I wish? I wish...
Hello Nick You have got it. The cold rolled is closer tolerance than hot rolled. Â I made a way when I was experimenting and it took about 3 days to get it to...
Hi Guys, Other acids can be used but a simply and safe test for the presence of magnesium can be done by cleaning a small area with sand paper and putting a...
SP is straight polarity...RP is reverse Polarity. It is defined as the direction that electrons flow , the opposite to Benjamin Franklin's conventional current...
There is a difference if you consider the electron flow within the power source and within the external circuit. The power source uses energy to remove...
The only cold rolled available in East Texas is keystock! Pat ... rolled. ... get it to work halfway good. The hot rolled was tough to work into a good way. ...
Hello Pat  The last pieces of metal I got from Speedy Metal came from Grand Prairie Tx  That is in the DFW area, looks like East Texas to me.   Keith Deep...
Bill, Tin cans are almost pure aluminum. Therefore the metal may not have the best physical properties. More important, however, is the fact that the...
Interesting Pat Am wondering, even though I have said at times to cut the block myself, if by cutting the block in two or just pieces out of it, if by doing...
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