Re: [Emc-users] index-enable pin

I'm doing something like this but for another non-MK related project. I want to capture the count associated with an optical encoder and the worst case is the encoder is sending "edges" every 30 micro seconds. The solution is easy if you use a hardware counter. You gate the counter to a

Re: [Emc-users] index-enable pin

On 05/18/2018 11:10 PM, Gene Heskett wrote: On Friday 18 May 2018 22:15:37 Jon Elson wrote: On 05/18/2018 07:57 AM, Maxime Lemonnier wrote: Well, from the halscope capture, the index signal looks quite clean. it is digitally generated anyways. That is misleading, it is only sampled by the

Re: [Emc-users] index-enable pin

On Saturday 19 May 2018 21:39:58 Jon Elson wrote: > On 05/19/2018 07:27 PM, Gene Heskett wrote: > > On Saturday 19 May 2018 14:47:46 Chris Albertson wrote: > > > > So its turning 3 whole revolutions per servo-thread. > > Assuming 1000 servo thread executions/second, that is 3000 > RPS or 180,000

[Emc-users] How does this work?

My son is looking at CNC mills. I cam across this one, and no, I don't think it suitable for him. He will really need a Haas class machine. But I'm looking at the photos and I don't see any 'glass', feedback, like my mill. How does it work? I know those have to be servos, not steppers. Do

Re: [Emc-users] makeing tap hats, from brass rod

On Saturday 19 May 2018 22:03:58 andy pugh wrote: > On 20 May 2018 at 02:41, Gene Heskett wrote: > > But how best to prevent the drill bit from doing the sailors > > hornpipe dance when the brass first touches it? Thats the $64 > > question. > > I would take a completely

Re: [Emc-users] makeing tap hats, from brass rod

On 20 May 2018 at 02:41, Gene Heskett wrote: > But how best to prevent the drill bit from doing the sailors hornpipe > dance when the brass first touches it? Thats the $64 question. I would take a completely different approach, I would make a fitting for the lathe spindle

Re: [Emc-users] How does this work?

On 20 May 2018 at 02:58, Dan Bloomquist wrote: > But I'm looking at the photos and I don't see any 'glass', feedback, like my > mill. How does it work? I know those have to be servos, not steppers. Do > they just encode on the drive shaft and consider that accurate enough?

Re: [Emc-users] index-enable pin

On Saturday 19 May 2018 14:47:46 Chris Albertson wrote: > I'm doing something like this but for another non-MK related project. > I want to capture the count associated with an optical encoder and > the worst case is the encoder is sending "edges" every 30 micro > seconds. The solution is

[Emc-users] eBay

Gene, I was perusing eBay and found this, thought of you. 323251704661 -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot

[Emc-users] makeing tap hats, from brass rod

Greetings all; I need some advice. I finally made that special stud to mount a metric drill chuck to a T nut in a slot on the mills table. I have all these brass slugs fixed so they are keyed into a scallop in the edge of a 7/8" R8 collet that fits the head of a 4mm capscrew in the lower end

Re: [Emc-users] index-enable pin

On 05/19/2018 07:27 PM, Gene Heskett wrote: On Saturday 19 May 2018 14:47:46 Chris Albertson wrote: So its turning 3 whole revolutions per servo-thread. Assuming 1000 servo thread executions/second, that is 3000 RPS or 180,000 RPM. Did you forget to divide by 60? (We have some stuff at work