Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-27 Thread andy pugh
On Sat, 27 Oct 2018 at 15:38, Eric Keller wrote: > The $20 MPG dials seem a > little large for a feed rate override. There are lots of 2-channel encoder switches in a potentiometer-like format. Typically 16 clicks per rev. There are BCD coded ones too, but they need more IO pins each (4) https:

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-27 Thread Gene Heskett
On Saturday 27 October 2018 10:35:07 Eric Keller wrote: > On Fri, Oct 26, 2018 at 9:43 AM Les Newell > > wrote: > > You can't have a pointer on an encoder because you have no way of > > knowing where zero is. > > > > Can a quad encoder be initialized to a particular value? There would > > be no >

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-27 Thread Eric Keller
On Fri, Oct 26, 2018 at 9:43 AM Les Newell wrote: > You can't have a pointer on an encoder because you have no way of > knowing where zero is. > > Can a quad encoder be initialized to a particular value? There would be no reason to home it in this application if so. The $20 MPG dials seem a litt

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-26 Thread Gene Heskett
On Friday 26 October 2018 09:41:15 Les Newell wrote: > You can't have a pointer on an encoder because you have no way of > knowing where zero is. > > Les Tactilly this is true, but its z index could use used to zero the hal representation. But not having a mechanical stop at that zero seems like

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-26 Thread andy pugh
On Fri, 26 Oct 2018 at 14:43, Les Newell wrote: > You can't have a pointer on an encoder because you have no way of > knowing where zero is. You could have a ring of LEDs on the encoder knob to form a virtual pointer. (Serially addressed with slip-rings) An LED next to each 10% mark is prob

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-26 Thread Les Newell
You can't have a pointer on an encoder because you have no way of knowing where zero is. Les On 26/10/2018 13:42, Todd Zuercher wrote: For the OCD like myself, the one machine I work with that has a factory pot for feed override, is a pain to twiddle the knob to get the control to show exactl

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-26 Thread Todd Zuercher
30)828-2105ext. 2031 -Original Message- From: Les Newell Sent: Friday, October 26, 2018 7:53 AM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Feed/Rapid override physical knob selection I use pots on all of my machines. Generally I have 3 pots, FRO, maximum feed and spind

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-26 Thread Les Newell
I use pots on all of my machines. Generally I have 3 pots, FRO, maximum feed and spindle override. The ADC is provided by an Arduino which controls all of my front panel buttons and talks to LCNC via Modbus over USB. I did put the code on the wiki many years ago but I just did a search and coul

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-26 Thread Gene Heskett
On Friday 26 October 2018 02:33:49 Tomaz T. wrote: > I would prefere to have potentiometer style of knobs where I can > include scale from 0-120% > > > Like on this picture: > > https://www.dropbox.com/s/tc315af7ayee3gk/Rotary_switch.jpg?dl=0 > > > Are for this used potentiometer or encoder? > Gen

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-25 Thread Tomaz T .
I would prefere to have potentiometer style of knobs where I can include scale from 0-120% Like on this picture: https://www.dropbox.com/s/tc315af7ayee3gk/Rotary_switch.jpg?dl=0 Are for this used potentiometer or encoder? ___ Emc-users mailing list

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-25 Thread Gene Heskett
On Thursday 25 October 2018 10:53:44 Przemek Klosowski wrote: > On Wed, Oct 24, 2018 at 4:00 PM andy pugh wrote: > > I assume this one is waterproof when installed, but not inherently: > > https://www.ebay.co.uk/itm/253300957997 > > MPJA still has a $20 handwheel, nicely done: > > http://www.mpja

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-25 Thread Jon Elson
On 10/25/2018 09:53 AM, Przemek Klosowski wrote: On Wed, Oct 24, 2018 at 4:00 PM andy pugh wrote: I assume this one is waterproof when installed, but not inherently: https://www.ebay.co.uk/itm/253300957997 MPJA still has a $20 handwheel, nicely done: http://www.mpja.com/Handwheel-Digital-En

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-25 Thread Przemek Klosowski
On Wed, Oct 24, 2018 at 4:00 PM andy pugh wrote: > I assume this one is waterproof when installed, but not inherently: > https://www.ebay.co.uk/itm/253300957997 MPJA still has a $20 handwheel, nicely done: http://www.mpja.com/Handwheel-Digital-Encoder-100PPR-5VDC/productinfo/33106+MI

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-25 Thread Gene Heskett
On Thursday 25 October 2018 02:29:19 Tomaz T. wrote: > >I cut too much. These are just examples, not recommendations. > > > >https://www.ebay.co.uk/itm/183476117151 >3476117151> > > https://www.ebay.co.uk/itm/152204137441 >52204137441>

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-25 Thread andy pugh
On Thu, 25 Oct 2018 at 07:30, Tomaz T. wrote: > Do I need to look for "10 position rotary switch" or "Rotary encoder"? That depends on whether you want a 10 position rotary switch or a rotary encoder... A 10 position switch will need 4 IO pins (you would need to get a BCD coded switch rather th

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-24 Thread Tomaz T .
>I cut too much. These are just examples, not recommendations. > >https://www.ebay.co.uk/itm/183476117151 >https://www.ebay.co.uk/itm/152204137441 I think in my case this kind of controls would be more suitable: h

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-24 Thread Tomaz T .
>If your knobs are near the mill even without coolant you will probably need >some sort seal to prevent the ingress of swarf. In my case, I'm going to install it on electronics enclosure for mid-size router for milling wooden parts, so no water or moisture at all.

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-24 Thread Gene Heskett
y using the spare I bought for something else. :) > > -Original Message- > > From: andy pugh [mailto:bodge...@gmail.com] > > Sent: Wednesday, October 24, 2018 4:40 PM > > To: Enhanced Machine Controller (EMC) > > Subject: Re: [Emc-users] Feed/Rapid override p

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-24 Thread Gene Heskett
On Wednesday 24 October 2018 15:57:31 andy pugh wrote: > On Wed, 24 Oct 2018 at 20:54, andy pugh wrote: > > Do you need waterproofing? That costs extra. > > I assume this one is waterproof when installed, but not inherently: > https://www.ebay.co.uk/itm/253300957997 66$ is quite a premium for wa

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-24 Thread Ken Strauss
gt; Subject: Re: [Emc-users] Feed/Rapid override physical knob selection > > On Wed, 24 Oct 2018 at 21:14, Tomaz T. wrote: > > > >There are two main choices, MPG ( > https://www.ebay.co.uk/183476117151) > > >or potentiometer-style encoder ( https://www.ebay.co.uk/

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-24 Thread andy pugh
On Wed, 24 Oct 2018 at 21:14, Tomaz T. wrote: > >There are two main choices, MPG ( https://www.ebay.co.uk/183476117151) > >or potentiometer-style encoder ( https://www.ebay.co.uk/152204137441) > > Your links doesn't work, what do I need to look for to get right reaults? I cut too much. These are

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-24 Thread Tomaz T .
>Work out if you want 6 wire or 4 wire. (Does your Pico board support >differential encoders? If it does you want the 6-wire) I think it takes only 3-wire encoders (A,B,I) >There are two main choices, MPG ( https://www.ebay.co.uk/183476117151) >or potentiometer-style encoder ( https://www.ebay.co

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-24 Thread andy pugh
On Wed, 24 Oct 2018 at 20:54, andy pugh wrote: > Do you need waterproofing? That costs extra. I assume this one is waterproof when installed, but not inherently: https://www.ebay.co.uk/itm/253300957997 -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the espe

Re: [Emc-users] Feed/Rapid override physical knob selection

2018-10-24 Thread andy pugh
On Wed, 24 Oct 2018 at 18:00, Tomaz T. wrote: > I would like to add two physical knobs for adjusting Feed Override and Rapid > Override. Are there any caracteristics I should be aware of, befre ordering > cheapest one from ebay? Any suggestions? I use the cheapest from eBay. Work out if you w