Re: [Emc-users] Math help plz

2016-07-23 Thread Gene Heskett
On Saturday 23 July 2016 22:50:47 Cecil Thomas wrote: > Gene, > Check your in box. > I sent you the answer to your question in the form of a jpeg drawing > for both the internal thread and the external thread. > You can't just use the trig for an equilateral triangle because real > threads are not

Re: [Emc-users] Math help plz

2016-07-23 Thread Cecil Thomas
Gene, Check your in box. I sent you the answer to your question in the form of a jpeg drawing for both the internal thread and the external thread. You can't just use the trig for an equilateral triangle because real threads are not equilateral triangles but are really trapezoids with flattened

Re: [Emc-users] Math help plz

2016-07-23 Thread Gene Heskett
On Saturday 23 July 2016 19:55:16 R.L. Wurdack wrote: > 60 degrees, square root of 3 divided by 2. > I know that angle, yes, but that does not give me the threads height, which is the minimum that I can advance the cutting tooth to achieve a thread of the correct depth from the point of first co

Re: [Emc-users] Math help plz

2016-07-23 Thread R.L. Wurdack
60 degrees, square root of 3 divided by 2. - Original Message - From: "Gene Heskett" To: "Enhanced Machine Controller (EMC)" Sent: Saturday, July 23, 2016 4:43 PM Subject: [Emc-users] Math help plz > Greetings all; > > I know the tpi, starting OD, and length of the z stroke, the tape

[Emc-users] Math help plz

2016-07-23 Thread Gene Heskett
Greetings all; I know the tpi, starting OD, and length of the z stroke, the taper angle of 7 degrees, and how many many passes thru the routine that I want to apply the x increment if I'm boring, or the x decrement if I am turning. But there is also the factor of the threads depth, which I beli

Re: [Emc-users] Induction heating small parts

2016-07-23 Thread andy pugh
On 23 July 2016 at 12:19, Erik Christiansen wrote: > The unused 48v battery charger at the back of my garage is about a 2.5 foot > cube, and packs around 65v & 20+ amps, cranked up. I don't know how to relocate this search to the USA, but these PSUs from slot-machines often have rather high outpu

Re: [Emc-users] Induction heating small parts --> power supply stacking

2016-07-23 Thread Nicklas Karlsson
To stack voltage sources is almost certainly NOT a good idea. Current sources would however probably work great. I have seen both current and voltage sources have been used as battery chargers. On Sat, 23 Jul 2016 11:58:38 -0400 Gene Heskett wrote: > On Saturday 23 July 2016 07:19:30 Erik Chri

Re: [Emc-users] Induction heating small parts

2016-07-23 Thread Gene Heskett
On Saturday 23 July 2016 07:19:30 Erik Christiansen wrote: > On 23.07.16 06:01, Gene Heskett wrote: > > On Saturday 23 July 2016 04:03:24 Erik Christiansen wrote: > > > http://www.banggood.com/Low-ZVS-12-48V-20A-1000W-High-Frequency-In > > >duct ion-Heating-Machine-Module-p-1038472.html > > > > Th

Re: [Emc-users] Induction heating small parts

2016-07-23 Thread Ed
On 07/23/2016 06:19 AM, Erik Christiansen wrote: > On 23.07.16 06:01, Gene Heskett wrote: >> On Saturday 23 July 2016 04:03:24 Erik Christiansen wrote: >>> http://www.banggood.com/Low-ZVS-12-48V-20A-1000W-High-Frequency-Induct >>> ion-Heating-Machine-Module-p-1038472.html >>> >> That looks like a c

Re: [Emc-users] Machine measurement, edge finder

2016-07-23 Thread Nicklas Karlsson
Thanks, didn't think about it. I actually already have two edge finders which should do the trick. On Sat, 23 Jul 2016 12:21:21 +0100 Dave Caroline wrote: > I get around this sort of problem with various forms of travelling microscope > > http://www.collection.archivist.info/searchv13.php?sea

Re: [Emc-users] Machine measurement

2016-07-23 Thread Dave Caroline
I get around this sort of problem with various forms of travelling microscope http://www.collection.archivist.info/searchv13.php?searchstr=travelling+pd to measure an axis travel I used an accurate DTI in one plane http://www.archivist.info/cnc/screw_error/ Dave Caroline

Re: [Emc-users] Induction heating small parts

2016-07-23 Thread Erik Christiansen
On 23.07.16 06:01, Gene Heskett wrote: > On Saturday 23 July 2016 04:03:24 Erik Christiansen wrote: > > http://www.banggood.com/Low-ZVS-12-48V-20A-1000W-High-Frequency-Induct > >ion-Heating-Machine-Module-p-1038472.html > > > That looks like a cute little starter kit. But I searched thru all 680

[Emc-users] Machine measurement

2016-07-23 Thread Nicklas Karlsson
I need to meausure axis scale accurately. Does anybody know a tool to measure distance between holes or small marks made by a dub? Regards Nicklas Karlsson -- What NetFlow Analyzer can do for you? Monitors network bandw

Re: [Emc-users] Induction heating small parts [Was: Semi OT: Can't measure Index pulse on encoder]

2016-07-23 Thread Gene Heskett
On Saturday 23 July 2016 04:03:24 Erik Christiansen wrote: > On 22.07.16 09:44, Gene Heskett wrote: > > Induction heating is something I'd like to make work on a small > > scale, with a coil big enough to pass over some of the stuff I might > > make out of 1/2" A2. > > The nine-part build history

[Emc-users] Induction heating small parts [Was: Semi OT: Can't measure Index pulse on encoder]

2016-07-23 Thread Erik Christiansen
On 22.07.16 09:44, Gene Heskett wrote: > Induction heating is something I'd like to make work on a small scale, > with a coil big enough to pass over some of the stuff I might make out > of 1/2" A2. The nine-part build history of a 10 kW induction heater is very enlightening, but a little bit of