Re: [Emc-users] following error only while homing

2017-06-21 Thread Tom Easterday
I moved the Z axis down maybe 1/2" before issuing the home command, so it only needs to move a short distance to get back to the switch. -Tom > On Jun 21, 2017, at 7:19 PM, Peter C. Wallace wrote: > > Only because the step was small (because it was probably not the first time

Re: [Emc-users] following error only while homing

2017-06-21 Thread Peter C. Wallace
On Thu, 22 Jun 2017, andy pugh wrote: Date: Thu, 22 Jun 2017 00:06:42 +0100 From: andy pugh Reply-To: "Enhanced Machine Controller (EMC)" To: "Enhanced Machine Controller (EMC)" Subject: Re: [Emc-users]

Re: [Emc-users] following error only while homing

2017-06-21 Thread andy pugh
On 21 June 2017 at 19:36, Peter C. Wallace wrote: > The stepgen is not computing following error it just cant be driven by a > position command with a stepwise discontinuity and move instantaneously to > the new position. I think it might be more interesting than that.

Re: [Emc-users] OT - handling a 120v ac dip

2017-06-21 Thread Gene Heskett
On Wednesday 21 June 2017 15:03:23 kqt4a...@gmail.com wrote: > I am just a tinkerer so I'm looking for advice. I have a project using > an ESP8266 to control a light. I am using a Panasonic AQY280EH to > switch the light. What is the safe protocol for mounting and > connecting a device that is

[Emc-users] OT - handling a 120v ac dip

2017-06-21 Thread kqt4at5v
I am just a tinkerer so I'm looking for advice. I have a project using an ESP8266 to control a light. I am using a Panasonic AQY280EH to switch the light. What is the safe protocol for mounting and connecting a device that is using a high voltage.

Re: [Emc-users] Mesa 7i47S issue

2017-06-21 Thread Andrew
2017-06-20 23:35 GMT+03:00 Peter C. Wallace : > >> This is not unexpected, the card is probably fine > > The 7I47S has differential inputs, They are not designed to interface with > single ended signals but can if needed. > > The only way the inputs will work reliably is to have

Re: [Emc-users] following error only while homing

2017-06-21 Thread Peter C. Wallace
On Wed, 21 Jun 2017, Jon Elson wrote: Date: Wed, 21 Jun 2017 13:22:04 -0500 From: Jon Elson Reply-To: "Enhanced Machine Controller (EMC)" To: "Enhanced Machine Controller (EMC)" Subject: Re:

Re: [Emc-users] following error only while homing

2017-06-21 Thread Jon Elson
On 06/21/2017 12:15 PM, Peter C. Wallace wrote: A step in the FB position from the encoder and an attempt at an impossible step in the commanded stepgen position... All the complexities / workrounds of this position step on index could be avoided if support for encoder counter that can

Re: [Emc-users] 3 d metal printer

2017-06-21 Thread BRIAN GLACKIN
The name "concrete" is misleading. The paste is more of a grout using fine aggregates whereas concrete typically has coarse aggregates. With the absence of coarse aggregates, the vibration requirement is minimized. As for reinforcement, simple paste as shown would be weak indeed unless they are

Re: [Emc-users] following error only while homing

2017-06-21 Thread Peter C. Wallace
On Wed, 21 Jun 2017, Jon Elson wrote: Date: Wed, 21 Jun 2017 11:48:17 -0500 From: Jon Elson Reply-To: "Enhanced Machine Controller (EMC)" To: "Enhanced Machine Controller (EMC)" Subject: Re:

Re: [Emc-users] following error only while homing

2017-06-21 Thread Jon Elson
On 06/20/2017 10:15 AM, Sebastian Kuzminsky wrote: On 06/20/2017 08:52 AM, Chris Radek wrote: On Tue, Jun 20, 2017 at 09:27:46AM +0100, andy pugh wrote: Now, this is perfectly normal, and with a servo / pid machine the system knows to ignore the f-error immediately after an encoder reset.

Re: [Emc-users] 3 d metal printer

2017-06-21 Thread Nicklas Karlsson
> 3D concrete printing > > https://www.youtube.com/watch?v=zb3zuk1qNDk Without rebar and vibration concrete will be weak, maybe it's good enough for a real firewall? -- Check out the vibrant tech community on one of

Re: [Emc-users] following error only while homing

2017-06-21 Thread Peter C. Wallace
On Wed, 21 Jun 2017, Tom Easterday wrote: Date: Wed, 21 Jun 2017 10:11:01 -0400 From: Tom Easterday Reply-To: "Enhanced Machine Controller (EMC)" To: "Enhanced Machine Controller (EMC)" Subject: Re:

Re: [Emc-users] following error only while homing

2017-06-21 Thread Tom Easterday
So is that large jump in f-error caused by the difference between axis.2.joint-pos-cmd and axis.2.joint-pos-fb? There is a small 90 degree step in pos-cmd that is not mirrored in pos-fb near the end, in line with the spike of f-error. Is that the cause and why is that there? -Tom > On Jun

Re: [Emc-users] 3 d metal printer

2017-06-21 Thread Valerio Bellizzomi
On Wed, 2017-06-21 at 12:22 +0100, andy pugh wrote: > On 20 May 2017 at 07:41, a k wrote: > > > hi > > i found this > > https://www.youtube.com/watch?v=wOarxQRKW9o > > that is exactly that i try to build 4 years ago > > > > More of the same, plus some CGI to make it look

Re: [Emc-users] EMC traffic

2017-06-21 Thread andy pugh
On 20 June 2017 at 08:50, Erik Christiansen wrote: > Incidentally, I've found that the Postscript printer language is sorta > almost like gcode on steroids. Fighting with a GUI drawing package > gives me chest pains, without producing useful output, > Have you seen

Re: [Emc-users] 3 d metal printer

2017-06-21 Thread andy pugh
On 20 May 2017 at 07:41, a k wrote: > hi > i found this > https://www.youtube.com/watch?v=wOarxQRKW9o > that is exactly that i try to build 4 years ago > More of the same, plus some CGI to make it look like it actually works.. https://www.youtube.com/watch?v=n2szk5MItRA