On Thursday 04 February 2016 12:16:12 Jon Elson wrote: > On 02/04/2016 01:46 AM, Gene Heskett wrote: > > Snooping around on fleabay last night I found this: > > <http://www.ebay.com/itm/1-PC-3-8-X-45-DEGREE-PREMIUM-HSS-DOVETAIL-C > >UTTER-MILLING-HIGH-SPEED-STEEL-/131511946248?hash=item1e9eb90c08:g:Jm > >cAAOSwBahVVON-> Which looks like a decent price, but the pix doesn't > > match > > the description, so which is correct? If its as small as > > it claims, it would be ideal. I thought of hitting the buy > > it now for 4 of them since they are HSS and would need to > > be drowning in cutting oil. Should I? Cheers, Gene Heskett > > I'm thinking the SHANK is 3/8", maybe. Not clear the angle > is 45 degrees, either, but that could just be the angle the > photo was shot at. I don't use ANY HSS anymore. Maybe the > stuff from China is all crap metallurgy, but quite some time > ago I had really poor cutting life with them. I got some > M42 and such Cobalt HSS, and they last a LOT longer, for > just a few pennies more. > > Jon
This is, ATM, a one job need, that of making a teeny dovetail mount for this camera. And I ordered 4 of them from an outfit in Huntington Beach Cal this morning. Expected delivery next Tuesday. I turned my pattern upside down so when its removed, theres only 3/8" of stuff hanging off the bottom on the spindle lock collar, which since I am using those Chinese R8-ER32 adapters, should clear most of the jigging studs etc. Hopefully the dovetailed mount will let me remove it, and replace it, without needed to re-do all the calibrations for offsets etc. Someone had advised me about te limited lifetime of a SQ-D breaker panel. And one of the North Central WV Electical suppliers are in the process of opening up a supply house right here in Weston, so I drove out & found it today, and was able to source a 15 amp 250 volt breaker for the VFD circuit, be here tomorrow. Along with some of that no-ox alu grease. I mentioned the SQ-D gotcha and he replied that that was exactly the reason they were stocking Murray panelboxes. They were all copper, and amazingly, cheaper than SQ-D for the same thing. He was well aware of the SQ-D problem. He also said it you take it apart, and seal the fingers to the bars with an Silicon Lube, that it was not ever a problem, but once in service thats not practical to do. He also had some handy-boxes on the shelf already, so it appears I'll have a handier source for all this stuff without a 40+ mile round trip to Lowes or Tolley Electric. Possible silly Q: The SSR that drives the resistor, first on/last off in the sequence, can I also parallel its output to switch those switcher supplies for the steppers? The BoB's (2) one is powered by a wall wart plugged into the main strip on the end of the box, the other is self contained power but also plugged into that same strip, and I've been using the cheap rocker on that strip as a master switch. But, if that SSR and those switchers could tolerate each other, then I could control everything but the 2 BOB powers with the first on, last off SSR. The box with the SSR's in it also has its own supply, so with everything else off, standby power draw would probably be less than 25 watts, less that the computer draws. And the ability to switch everything elses power is attractive as it would be both automatic and essentially free except for a few wire nuts I buy by the boxfull. Neither of those stepper psu's contain any PF comp that I'm aware of, so it seems like it ought to work ok. But this is dirt I've not kicked around yet, so advice would be appreciated. Thanks Jon. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
