On Sunday 08 May 2016 02:50:55 Marcus Bowman wrote: > On 8 May 2016, at 04:49, Gene Heskett wrote: > > Greetings all; > > > > Trying to hold a 10" diamond saw blade yesterday, tight enough to > > keep it from slipping, I striped out the 6mm threads in my arbor. > > > > So today I bored it gently out to around .230" or 15/64's and > > re-tapped that to 7mm x1.0. It wasn't until I was cleaning that up > > that I realized I had not seen any 7mm x1.0 screws on my side of the > > planet. So I assume that I may as well redo it for an 8mm screw > > tomorrow. > > > > But that will be loads of fun because with the 7mm tap in the chuck, > > I had to keep asking for a smaller peck per stroke because even in > > low gear, and the current limit in Jon's servo amp set to limit at > > about 15 amps, 150% drive for that motors nameplate, I was raising > > the divider that determined the additional stroke per peck until it > > was taking at least 7 or 8 pecks to tap one additional mm deeper. > > Combine that with the tap I was using have a longer that normal nose > > taper, I hit the bottom of the hole and that locked the spindle so > > I'm standing there, noting the spindle had stopped and jon's servo > > amp was singing as it overload regulated. Stopped lcnc, loosened > > the chuck to release the tap, ran the head up 6" or so, and > > unscrewed the tap from the hole. Threads look great, but I suspect > > there is not a 7mm cap screw about in these here parts. Pure > > unobtainium comes to mind for the alloy. :) > > > > So, just out of curiosity, are 7mm bolts really that hard to find, > > or am I looking in the wrong local stores? > > M7 x 1 used to be hard to find, over here (Scotland) but are easily > available now. It's much the same for the Fine Series metric threads, > which used to be available in central (mainland) Europe only, but are > now available here too. I think the fact they are now made in China > has solved those problems. So maybe the reach of global traders > through eBay will help you too. > > Marcus
I considered that, then considered the shipping delay & the often outrageous shipping charges if it weighs over an ounce, and that I'd like to resume this project I've been putting off for years, and I'll make it an 8mm bolt I can source from Tractor Supply. I'll see whats available in both 7 and 8, even 10mm just to stock up my bolt box. Thanks Marcus. > > NAPA perhaps? Pricy there though. Seems metric in the label makes > > them an additional $2 a bolt or nut. Been there, done that. Should > > have gotten a free t-shirt for the price I paid for a 6 pack of 8mm > > self lockers. Bah. > > > > Home Depot, up in Bridgeport, 26 miles up the Super-Pot-Hole, aka > > I-79 has the best stock ATM, but I cannot recall seeing any 7's. 8's > > I can probably get locally at Tractor Supply. In a decent alloy > > even. > > > > I also think my 8mm tap is a lot sharper than the black oxide > > finished 7mm is, so maybe I can get by driving it with the mill. > > We'll find out tommorrow. > > > > Thanks everybody. > > > > 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> > > > > -------------------------------------------------------------------- > >---------- Find and fix application performance issues faster with > > Applications Manager Applications Manager provides deep performance > > insights into multiple tiers of your business applications. It > > resolves application problems quickly and reduces your MTTR. Get > > your free trial! > > https://ad.doubleclick.net/ddm/clk/302982198;130105516;z > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > ---------------------------------------------------------------------- >-------- Find and fix application performance issues faster with > Applications Manager Applications Manager provides deep performance > insights into multiple tiers of your business applications. It > resolves application problems quickly and reduces your MTTR. Get your > free trial! > https://ad.doubleclick.net/ddm/clk/302982198;130105516;z > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users 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> ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
