Re: [Emc-users] Spindle experiences/recommendations?

2019-06-23 Thread Danny Miller
Have used a cheap Chinese air cooled 18krpm 3kw spindle for years.  You must drive them off a VFD anyways. At 3000 rpm you have much less power.  Well the torque is probably the same but power=torque * rpm. The air cooled is cooled by a shaft-driven impeller, so fan rpm drops to 3000 rpm

Re: [Emc-users] Dual boot for WIN-XP and LinuxCNC

2019-06-03 Thread Danny Miller
No command line anything here.  I would not characterize LinuxCNC like that at all.  It ABSOLUTELY is a GUI tool. We use the WHB04 wireless mpg for everything but loading the file, looking at the job, and the occasional rescue from broken bits and misc catastrophes (rolling the job back to a

Re: [Emc-users] Dual boot for WIN-XP and LinuxCNC

2019-06-02 Thread Danny Miller
: Danny Miller [mailto:dan...@austin.rr.com] Sent: June-01-19 7:09 PM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Dual boot for WIN-XP and LinuxCNC Longtime user of the 7i92.� Former user of Mach3/Smoothstepper. It is very good all around, perfect high performance, and frees you

Re: [Emc-users] Dual boot for WIN-XP and LinuxCNC

2019-06-01 Thread Danny Miller
Longtime user of the 7i92.  Former user of Mach3/Smoothstepper. It is very good all around, perfect high performance, and frees you from almost any PC latency probs. It can configure as a plain-jane parallel port that you'd plug and play into PMDX-126, but also other things. Combine with

Re: [Emc-users] Hardware emcmot? Real time delay

2019-04-13 Thread Danny Miller
On 4/13/2019 3:46 PM, Nicklas SB Karlsson wrote: Even th D-525-MW motherboard? I can latency-test for an hour or 2 on this machine I'm building up right now, and not show any worse than 5.1 microseconds for base thread latency, and If I run without that thread, which I don't use anyway, and

Re: [Emc-users] Hardware emcmot?

2019-04-11 Thread Danny Miller
Well, what I would ideally picture is a realtime hardware motion controlled coupled to a Raspberry PI running Linux non-RT, the PI is hooked to a PC and has an embedded http server.  At that point you access it via browser and load and control control your job from the PC interface.  estop etc

Re: [Emc-users] For PCW

2019-04-11 Thread Danny Miller
I have used an RS232-to-RS485 adapter and just plugged it into the PC serial port.  It was not ideal to add another cable from the PC but it works fine.  There are MODBUS drivers for LinuxCNC. Danny On 4/11/2019 5:30 PM, Peter C. Wallace wrote: On Thu, 11 Apr 2019, Gene Heskett wrote:

Re: [Emc-users] Hardware emcmot?

2019-04-10 Thread Danny Miller
On 4/10/2019 11:31 AM, andy pugh wrote: On Wed, 10 Apr 2019 at 17:12, Danny Miller wrote: I have been wondering- can emcmot be separated from the HAl and emctask and become a true dedicated realtime stage to control the joints? I suspect not as it stands. This is based on the observation

[Emc-users] Hardware emcmot?

2019-04-10 Thread Danny Miller
I have been wondering- can emcmot be separated from the HAl and emctask and become a true dedicated realtime stage to control the joints? The shared memory FIFOs could be replaced with like an ethernet link to the hardware RAM.  You'd probably load a DMA buffer and just let it flow, there's

Re: [Emc-users] SPI comms for linuxcnc (was Re: Rock64 pre-orders on Banggood.) --> CPU + Ethercat + FPGA/CPLD but no PRU

2019-03-31 Thread Danny Miller
One common solution is you have a sizable FPGA and just add a soft core into it. RISC-V is an open-source, royalty-free core specifically architected to efficiently implement as FPGA gates that Keil can compile for, and the common Segger JTAG programmer can program AND debug the code. At

[Emc-users] Fusion360 gcode= "Radius to end arc differs from radius start"

2019-01-13 Thread Danny Miller
I'm managing a community shop with the CNC I designed and built. It's running on LinuxCNC 2.7.4 I was told people brought in some Fusion360-generated code that created an error "Radius to end arc differs from radius start". Nobody has provided me that gcode, so I have no further details.

Re: [Emc-users] Tool touch-off

2017-12-16 Thread Danny Miller
- the file may not get reevaluted automatically when WC Z is reassigned between the time Run is pressed and we actually start user G-code. However, Top Datum, that wouldn't apply at all.  You can't reassign WC Z. Danny On 12/16/2017 3:02 PM, Jon Elson wrote: On 12/16/2017 12:53 PM, Danny Miller

[Emc-users] Tool touch-off

2017-12-16 Thread Danny Miller
I have a lot of users on my CNC router now and, predictably, they keep chewing into the spoilboard. I had some thoughts about what if: Every time you hit Start, before it starts the spindle or actually runs any line of the user G-code, it jogs over to a tool height sensor (THS) and probes

Re: [Emc-users] Tech Shop goes out of business

2017-12-04 Thread Danny Miller
I saw this info, including a non-public letter to their investors. It declared an intent, yes.  BUT lemme say it's "out there". It does not look like a professional business move.  It doesn't look like it's even in accordance with acceptable business practices. They didn't file for chapter

[Emc-users] Interactive g-code routine?

2017-09-23 Thread Danny Miller
I have a simple .ngc file I run to run the dust shoe across the entire table.  I'd like to add a UI button to run this. But there are other users of this machine.  I would like to avoid just loading the file and having to run it manually.  However, pressing a "Clean Table Now" button with no

Re: [Emc-users] How to add additional condition for enabling machine

2017-07-29 Thread Danny Miller
Electrically you need a way to get this signal on a pin. Past that, it well within the capabilities of the HAL to code up that this pin reading "TRUE" is a condition for running. It will not matter if "TRUE" is high or low. The HAL can be used to integrate this signal, in like a dozen

Re: [Emc-users] How to add additional condition for enabling machine

2017-07-29 Thread Danny Miller
Two important questions: 1. Do you want the machine to pause if you lose pressure mid-run? (almost certainly so) 2. Do you want the machine to be able to auto-resume if pressure drops but comes back? Danny On 7/29/2017 1:36 PM, David Berndt wrote: If the air pressure is related to

Re: [Emc-users] change of subject, brass or copper?

2017-07-15 Thread Danny Miller
Look up CA954 aluminum bronze. Very good sliding surface on stainless. Danny On 7/15/2017 10:05 PM, Gene Heskett wrote: On Saturday 15 July 2017 22:00:44 Trent Hejazi wrote: I have brass contact fingers and they work well. I'll get a brass bar yet tonight then, thanks. When supporting

Re: [Emc-users] Multi-meter recommendations

2017-07-15 Thread Danny Miller
Best deals of out of grey market China sites: http://www.dx.com/s/fluke?cateId=0=All%20Categories Fluke cut China a deal. 17B+ is over $300 in US. But China will sell you one of their discounts- same meter- for $130. It IS a genuine Fluke. Same product. Only confusion is, on eBay,

Re: [Emc-users] OT: Waterjet cutter

2017-06-17 Thread Danny Miller
There was a kickstarter for the "Wazer", a home/low-end waterjet cutter. Problem is, it is very slow and consumes a LOT of expensive abrasive media per inch, relative to a full-size waterjet. A waterjet's key component is the intensifier pump- it is FAR larger than a pressure washer. Now,

Re: [Emc-users] Mesa 7i47S issue

2017-06-17 Thread Danny Miller
That's not a true differential output. It's an optoisolator's two output terminals. Since they're isolated, neither terminal is tied to a gnd or + so you can connect it high or low. When tripped, it conducts current (supplied externally) from + to -. It cannot generate its own voltage,

Re: [Emc-users] Fiber optic control for CNC

2017-04-20 Thread Danny Miller
Leadshine drives input/output are not just opto, they're differential. i.e. the step signal has 2 wires and dir has 2 wires, there's no common ground or common anode. So they're not just galvoisolated from the pulse source, but from each other. When run as twisted pairs or just pairs, the

Re: [Emc-users] Changing arrow key bindings

2017-03-19 Thread Danny Miller
uot; button. But I don't see anywhere where it implements the z2/view_type=2 mode. Does the AXIS frontend not do this, it's in Linuxcnc itself?? Danny On 3/19/2017 3:21 PM, Danny Miller wrote: > I should clarify (as assumed anyhow) that I'm using AXIS. > > Actually, isn't "Rot

Re: [Emc-users] Changing arrow key bindings

2017-03-19 Thread Danny Miller
http://linuxcnc.org/docs/2.6/html/config/ini_config.html "Geometry has no effect without a rotary axis." I think that's the answer there. Danny On 3/19/2017 4:35 PM, andy pugh wrote: > On 19 March 2017 at 20:21, Danny Miller <dan...@austin.rr.com> wrote: >> Any wa

Re: [Emc-users] Changing arrow key bindings

2017-03-19 Thread Danny Miller
I should clarify (as assumed anyhow) that I'm using AXIS. Actually, isn't "Rotated Top View" just that, anyhow? Can I make it the default? Crap... looks like the "Rotate Top View" is going to rotate the wrong way, making it 180 deg from what I need. The machine's at the shop but that's what

[Emc-users] Changing arrow key bindings

2017-03-19 Thread Danny Miller
I set up my 5x8 machine with the X in the long direction. It is loaded from the narrow side. Originally the terminal was on a table parallel to the long X axis with the router behind the monitor. That seems correct to me, VCarve CAD/CAM will always put the X-axis horizontal, the long side of

Re: [Emc-users] Using a homing switch as a limit when not homed

2017-02-08 Thread Danny Miller
On 2/8/2017 8:15 PM, Jon Elson wrote: > On 02/08/2017 11:34 AM, dan...@austin.rr.com wrote: >> I don't have a physical stop on my Z axis, putting one in would be a PITA. >> The drive is exceptionally strong and it would be problematic to stop the >> axis that way. If you're an idiot and jog

[Emc-users] Finally figured out how to halve an axis!

2017-02-06 Thread Danny Miller
This has troubled me for awhile. I have the XHC-HB04 pendant. On it is a "1/2" button. It is very useful when your CNC job uses center datum and you want to place it in the center of your stock. e.g. you've got a X=10" wide board, you do X=0 at one side, move to the other size and X=10, hit

Re: [Emc-users] Will a PCI serial / parallel card cure port issues?

2017-01-27 Thread Danny Miller
A card doesn't fix much. Basic problem is you're timing EACH step, which can be over 6KHz. A single step being significantly out of place can create a stall. The main source of jitter is in the CPU and chipset, not the parallel port. The Mesa stuff, I believe mine is a 1ms period, and it's

Re: [Emc-users] nema 24 motors.

2017-01-23 Thread Danny Miller
What drive and system voltage are you using here? Toroids don't make any sense anymore. Switching power supplies DO perform great, unless you overload 'em with BEMF, but a toroid is vulnerable to that too. Specifically Meanwell switching supplies perform reliably. Resonance seems to be

Re: [Emc-users] nema 24 motors.

2017-01-23 Thread Danny Miller
Dude, drop the 2-phase bipolar stuff and move to 3 phase! Or at least DSP drives. http://www.ebay.com/itm/Nema-23-3phase-1-8N-m-255ozf-in-stepper-Motor-57mm-frame-8mm-shaft-57J1285-658-/262562493149?hash=item3d21f1b2dd:g:fMsAAOSwCfdXor7F

[Emc-users] New successor to the HB04 wireless mpg?

2017-01-14 Thread Danny Miller
I have all sorts of love for the HB04 wireless mpg. I saw there's a new successor: http://www.ebay.com/itm/CNC-MACH3-Wireless-Electronic-Handwheel-4-Axis-Manual-Controller-USB-Handle-MPG-/201698782859?hash=item2ef62f2e8b:g:whUAAOSwUEVYDeBn Got mixed feelings. A dot matrix LCD is AMAZING, if

Re: [Emc-users] Noise problem found, but not fixed.

2016-12-28 Thread Danny Miller
I can tell you this with confidence- the reliable, quality brand is "Meanwell". They all look pretty much the same, they're not. http://www.ebay.com/itm/Mean-Well-MW-5V-3A-15W-AC-DC-Switching-Power-Supply-NES-15-5-/351760561983?hash=item51e690373f:g:NbMAAOSwepJXYhR4

[Emc-users] Calling MDI from HAL

2016-12-27 Thread Danny Miller
Say I want to use a button to call a one-time G-code op via MDI. Literally once. Repeat calls will break things. The button is debounced, but will remain pressed for more than one thread cycle. In fact there's debouncing logic in HAL that yields a true/false. Specifically it's a "half"

Re: [Emc-users] To BJT & PCW

2016-12-03 Thread Danny Miller
-GRID III, except it claims to work for "28ga". IWISS is a great brand. Danny On 12/3/2016 7:33 PM, Danny Miller wrote: > For those micro-pins, I had NO success with any crimper but this one, > which worked GREAT: > > https://www.amazon.com/gp/product/B002AVVO7K/ref=oh_aui

Re: [Emc-users] To BJT & PCW

2016-12-03 Thread Danny Miller
For those micro-pins, I had NO success with any crimper but this one, which worked GREAT: https://www.amazon.com/gp/product/B002AVVO7K/ref=oh_aui_detailpage_o05_s00?ie=UTF8=1 Yeah it's stupid expensive for what it is, but it worked for me, very well. Perfect crimp on the copper and the

Re: [Emc-users] max_velocity during execution - multiple axis

2016-11-06 Thread Danny Miller
ll go faster than 60 ipm in the middle? Danny On 11/6/2016 2:23 PM, andy pugh wrote: > On 6 November 2016 at 20:09, Danny Miller <dan...@austin.rr.com> wrote: >> Huh, ok, yeah inverse-time does make sense. > A little less sense than not-inve

Re: [Emc-users] max_velocity during execution - multiple axis

2016-11-06 Thread Danny Miller
On 11/6/2016 1:57 PM, Robert Ellenberg wrote: > On Sun, Nov 6, 2016 at 2:46 PM Danny Miller <dan...@austin.rr.com> wrote: > >> I did some rotary stuff on Mach3 and was baffled by similar issues. >> >> Seems like it'd be CAM's job to manage the feedrate, and ca

Re: [Emc-users] max_velocity during execution - multiple axis

2016-11-06 Thread Danny Miller
I did some rotary stuff on Mach3 and was baffled by similar issues. Seems like it'd be CAM's job to manage the feedrate, and calculate for the work radius. That would make sense if you were cutting a cylinder and the G-code move was "X moves 3 inches, A rotates 100 times, feed X at 1.5

Re: [Emc-users] An observation on digital calipers

2016-11-06 Thread Danny Miller
I tried to buy a pair of HFT calipers a few years ago, found they didn't read right, lost large distances. Went to exchange them but thought "hey let's make sure I get a pair that works..." NONE OF THEM. Went through like 10 boxes on the shelf. None read correctly. Now I've had an HFT I

Re: [Emc-users] What is usually used in place of rotating memory on one of these "Pi" boards?

2016-10-28 Thread Danny Miller
You wouldn't likely save the g-code on the SD card at all. You'd have a wifi connection and load the g-code from your local network. Those SD cards are used for storing photos and video quickly. Photographers and videographers use TONS of memory over and over., and quite frankly I never heard

Re: [Emc-users] Moving past Home Switch

2016-10-25 Thread Danny Miller
There are multiple parameters: 1. You can declare the homing switch to be a coordinate other than 0. e.g. "after we settle on the switch, this axis is offset so this is now +1.25 inches" 2. You can set axis limits at anything. I probably would never set a negative coord as a limit but

Re: [Emc-users] Machinekit? --> LinuxCNC computer

2016-10-24 Thread Danny Miller
On 10/24/2016 3:23 AM, Gene Heskett wrote: > Opto's on the bob are a waste of protection with modern > stepper drivers as they all have their own optos for all inputs. > Properly driven, a 2M542 driver can exceed 350 kilohertz step rates. Put > an opto on the bob and it will often fall over,

Re: [Emc-users] following along in my what if musings about ther new oramge pi 2e

2016-10-24 Thread Danny Miller
It absolutely requires its own ethernet port, no router either. That's because it's a realtime device and having to arbitrate would only make unpredictable latency/jitter. Like others are saying, the link for accessing your LAN probably won't even suffer if you use wifi and a USB2.0. I just

Re: [Emc-users] Machinekit? --> LinuxCNC computer

2016-10-23 Thread Danny Miller
ir freight. Almost all electronics > > > > On Sun, Oct 23, 2016 at 8:37 PM, Danny Miller <dan...@austin.rr.com> wrote: >> >> On 10/23/2016 4:28 PM, Gene Heskett wrote: >>>> No biggie, on my CNC (not an SBC) I just added a wifi USB already. >>>>

Re: [Emc-users] Machinekit? --> LinuxCNC computer

2016-10-23 Thread Danny Miller
> Sounds like its the -H I'd want too. More conserving of horizontal real > estate. And while I'm not going to add yet another potential loose > connection to the home switch setup, these bobs I have have such poor > terminals that I will cobble up a distribution point for all the stuff > that

Re: [Emc-users] Machinekit? --> LinuxCNC computer

2016-10-23 Thread Danny Miller
On 10/23/2016 4:28 PM, Gene Heskett wrote: > >> No biggie, on my CNC (not an SBC) I just added a wifi USB already. >> >> Mesa 7i92 are totally available from the mfg: >> >> http://store.mesanet.com/index.php?route=product/product_id=30 >> 2 > Not according to that web page 2 hours ago. Out of

Re: [Emc-users] Machinekit? --> LinuxCNC computer

2016-10-23 Thread Danny Miller
I use the Mesa 7i92. It is EXCELLENT. I prefer it over PCI solutions just because I can keep the controller separate from the PC without a lot of wiring. It works fine with my 1ms servo-thread. I have no reason to see if it goes further. It offloads all the pulse generation for the

Re: [Emc-users] glue question?

2016-10-23 Thread Danny Miller
On 10/23/2016 2:30 AM, Gene Heskett wrote: > I considered dropping the face to be joined on my big bench belt sander > for about long enough to make the surface good and "hairy", but haven't > actually tried that. About a second maybe as the melting point is > reached very quickly and I'd want

Re: [Emc-users] glue question?

2016-10-22 Thread Danny Miller
You CANNOT expect any high-strength bond on HDPE that rivals the strength of the material, not with any glue. Typically it is bolted. E6000 (same an Amazing Goop except uses PERC solvent instead of toluene) is the highest strength. Locktite makes a system for cyanoacrylate where you use a

Re: [Emc-users] New stepper-servo --> Phase delay

2016-10-21 Thread Danny Miller
The SPI comm of course has latency within a comm period. However, the pulse output must be super-fast. It supports up to 14500 rpm, so if it's 2000steps/rev the whole step cycle is 2ms, realistically like maybe 1/4 of that for latency? Danny On 10/19/2016 11:34 PM, Nicklas Karlsson wrote:

Re: [Emc-users] Machinekit?

2016-10-19 Thread Danny Miller
But if you're doing that, then a Mesa FPGA card makes much more sense for the realtime component. Danny On 10/19/2016 11:26 PM, Nicklas Karlsson wrote: >> ... >> While I use many BeagleBones to control various machines exactly the >> way you describe (using an HDMI monitor and KB/Mouse

[Emc-users] New stepper-servo

2016-10-18 Thread Danny Miller
A friend showed me this today, not powered up yet: https://www.kickstarter.com/projects/tropicallabs/mechaduino-powerful-open-source-industrial-servo-m At first I was confused, it says it's a stepper, but with an encoder, and lowers or disables drive current when not needed. Or you can

Re: [Emc-users] converting from mm to inches

2016-10-17 Thread Danny Miller
When you change the machine units to inches, you need to change all the velocity and accel parameters. They're just numbers, the unit is assumed, and changing from mm to inches makes that number 25.4x slower outright. Danny On 10/17/2016 10:05 PM, hubert wrote: > My machine was initially

Re: [Emc-users] Hacking a sim runtime mode

2016-10-15 Thread Danny Miller
Ah, I was about to say "no, it's just 100x the accel, not 100x^2 the accel, we're just changing the time frame". But I started to question myself and did the math logically. Duh. YOU are right, I've had that all wrong. That 25% gap seems troublesome. Because, like I say, I need to use it to

Re: [Emc-users] Probe cycle switches to MDI

2016-10-08 Thread Danny Miller
On 10/8/2016 12:13 PM, Gene Heskett wrote: > On Saturday 08 October 2016 12:25:57 Danny Miller wrote: > >> I have the wireless pendant button triggering a probe cycle in an >> .ngc. >> >> Problem is, IF the cycle ends without tripping the probe (user error), >&

[Emc-users] Probe cycle switches to MDI

2016-10-08 Thread Danny Miller
I have the wireless pendant button triggering a probe cycle in an .ngc. Problem is, IF the cycle ends without tripping the probe (user error), Axis UI ends up switching to MDI tab, and all the pendant function is for Manual Control tab. So it disables the pendant until you can get back to the

[Emc-users] Can speed/accel be changed without rebooting?

2016-10-05 Thread Danny Miller
I was going through the HAL and noticed the per-axis ini parameters are there. Can they be changed without rebooting? The machine will be at a stop for this. Reason being, I use the standard cutting profile but I also have a 3D carving profile which increases the acceleration much higher.

Re: [Emc-users] Getting current RPM setting?

2016-10-02 Thread Danny Miller
On 10/2/2016 11:35 AM, Sebastian Kuzminsky wrote: > On 10/02/2016 10:12 AM, Danny Miller wrote: >> On 10/2/2016 11:05 AM, Sebastian Kuzminsky wrote: >>> On 10/02/2016 02:32 AM, Danny Miller wrote: >>>> I thought it would be a good idea to display what the RPM sett

Re: [Emc-users] Getting current RPM setting?

2016-10-02 Thread Danny Miller
On 10/2/2016 11:05 AM, Sebastian Kuzminsky wrote: > On 10/02/2016 02:32 AM, Danny Miller wrote: >> I thought it would be a good idea to display what the RPM setting is >> before the spindle is started. >> >> I see current_rps is right there WHILE the spindle is runn

[Emc-users] Getting current RPM setting?

2016-10-02 Thread Danny Miller
I thought it would be a good idea to display what the RPM setting is before the spindle is started. I see current_rps is right there WHILE the spindle is running. But when I enter "S1", it's set inside LinuxCNC even before M3. I'd like to display it in pyvcp before M3 uses it. current_rps

Re: [Emc-users] Estimated time remaining

2016-10-01 Thread Danny Miller
The estimator DOES just use distance & feedrate, not acceleration. This is effective for estimating 2D cuts but junk for 3D carving, which hinges primarily on acceleration. There is no one effective "factor". I have 3D carvings which took 4x longer than estimated, others 6x. If it is only a

Re: [Emc-users] Anybody have an idea how...

2016-09-25 Thread Danny Miller
I did have a theory it was potmetal. Wasn't as bright and metallic as aluminum. Danny On 9/25/2016 1:58 PM, Jon Elson wrote: > On 09/25/2016 01:11 PM, Danny Miller wrote: >> Some of our folks built a metal kiln and we tried to melt some aluminum >> swarf the neighboring meta

Re: [Emc-users] Anybody have an idea how...

2016-09-25 Thread Danny Miller
Some of our folks built a metal kiln and we tried to melt some aluminum swarf the neighboring metalshop discarded, at least what we thought was aluminum (no confirmation, but it wasn't steel). We got almost no metal, just inches of dross. No inert gas or flux there, in fact the metal was

Re: [Emc-users] Trouble with TWOPASS and Mesa loadrt

2016-09-25 Thread Danny Miller
On 9/25/2016 10:05 AM, andy pugh wrote: > On 25 September 2016 at 08:36, wrote: > >> I am trying to add a run timer as per the time man page. >> >> LinuxCNC fails to load. Initially I think the offending line was "not: >> already exists" in the postgui hal. Yes it uses

Re: [Emc-users] "Probe triggered during jog"

2016-09-07 Thread Danny Miller
y On 9/7/2016 7:52 AM, John Kasunich wrote: > > On Wed, Sep 7, 2016, at 02:43 AM, Danny Miller wrote: >> I have a wireless toolsetting probe here. It's nice, but it's naturally >> sensitive. Even when you're not using it, very easy to trip, and >> LinuxCNC generates a &

[Emc-users] "Probe triggered during jog"

2016-09-07 Thread Danny Miller
I have a wireless toolsetting probe here. It's nice, but it's naturally sensitive. Even when you're not using it, very easy to trip, and LinuxCNC generates a "Probe triggering during jog" error. Just bump the table. The probe doesn't even have a physical hard switch, just the plate. Hmm.

Re: [Emc-users] Need unlocked copy of a pdf for a breakout board I just bought two of.

2016-09-07 Thread Danny Miller
On 9/7/2016 12:53 AM, Gene Heskett wrote: > On Wednesday 07 September 2016 01:41:24 Dave Caroline wrote: > >> That looks like a board I would not recommend look close to the white >> sockets near the axis outputs, it has series resistors for the driver >> optos, these of course are in the driver

Re: [Emc-users] Need unlocked copy of a pdf for a breakout board I just bought two of.

2016-09-06 Thread Danny Miller
On 9/6/2016 6:03 PM, Gene Heskett wrote: > On Tuesday 06 September 2016 18:21:14 dan...@austin.rr.com wrote: > > Back on the list Danny. > >> Mesaflash allows you to change the IO configuration, but only to a >> number of premade configs, not arbitrary. The GPIO has few limits but >> the

Re: [Emc-users] Can't figure out homing on gantry

2016-09-05 Thread Danny Miller
T > > On 9/5/2016 4:14 PM, Danny Miller wrote: >> On 9/5/2016 9:24 AM, John Thornton wrote: >>> Sounds like your home switches for the gantry are not connected >>> correctly in hal. You do have one switch for each joint right? >>> >>> JT >> Yep m

[Emc-users] Spurious edge on startup

2016-09-05 Thread Danny Miller
I have a HAL which is detecting a false edge when loading LinuxCNC. I have AM882 drives which have an Alarm signal output, and an Enable signal input. Alarm is active-low, Enable is active by default unless LinuxCNC deasserts it, all goes through a 7i92 card. The Alarm signal is tied to its

Re: [Emc-users] Can't figure out homing on gantry

2016-09-05 Thread Danny Miller
iggered them. They respond. At one point I switched the connection for gantry.0.joint.00.home and gantry.0.joint.01.home, just in case I was using the switch for X1 on what was actually the drive for X2. It was a good theory, but it didn't change anything. Danny > > > > On 9/5/20

Re: [Emc-users] Can't figure out homing on gantry

2016-09-05 Thread Danny Miller
On 9/2/2016 9:45 AM, Charles Steinkuehler wrote: > On 9/1/2016 9:28 PM, dan...@austin.rr.com wrote: >> Well, wait- just rechecked the gantry man page: "When the system is >> homing and a joint home switch activates, the command value sent to >> that joint is "frozen" and the joint offset value

Re: [Emc-users] How do stepper drivers work?

2016-09-03 Thread Danny Miller
pretty cheap. Danny On 9/3/2016 3:02 PM, Kirk Wallace wrote: > On 09/03/2016 11:32 AM, Andy Pugh wrote: >> >>> On 3 Sep 2016, at 21:12, Danny Miller <dan...@austin.rr.com> >>> wrote: >>> >>> l approximation of current targets whose PEAK value is e

Re: [Emc-users] How do stepper drivers work?

2016-09-03 Thread Danny Miller
From the user side, you provide 5v step/dir signals and need to pay attention to which active edge the driver uses, and know the microstep multiplier inside the drive. Inside, it's a constant-current PWM. If it's microstepping, it advances through a sinusoidal approximation of current

Re: [Emc-users] Using 7i76 I/O as serial Rx/Tx?

2016-07-08 Thread Danny Miller
I'd asked them about using a 7i92 to drive an RS485 transceiver, which would require 4 signals. They said the functionality was planned but no specific date. I asked if it would just appear as a Com port, he said no it'd be a specific LinuxCNC driver. There's a "UART" listed on the 7i92's

Re: [Emc-users] Spindle control panel breaks LinuxCNC?

2016-06-28 Thread Danny Miller
ould do something different through the HAL > than you'd get by MDI M3. > > Danny > > > andy pugh <bodge...@gmail.com> wrote: >> On 16 June 2016 at 07:57, Danny Miller <dan...@austin.rr.com> wrote: >> My MPG's "spindle" button works. >>

[Emc-users] G0 vs G1-specific functions?

2016-06-27 Thread Danny Miller
Two-parter here: I was looking over another carving job on the preview window and realized there's really no way to tell where the work is. That is, we go up to Z=2" for the start/end coords, but I need to know where the carving itself starts. It's shown in a different color because it's all

[Emc-users] Major lags when zeroing axes

2016-06-27 Thread Danny Miller
I work a lot with 3D carving. The files are often quite huge. When I go to zero the work coordinates, EACH axis results in recalculating the entire file, which can take minutes. Really it shouldn't require any recalculation (Mach3 doesn't) since it's just offsetting the coordinates, but I

[Emc-users] Moving axis while paused

2016-06-26 Thread Danny Miller
Recently discovered this: When paused, the axes can't be moved by the user. While that sounds like a safe protection at first, that's actually a critical problem. It is not uncommon to have to "fix" something mid-run. In a few cases I've seen the CNC router pop freed pieces out and they

[Emc-users] Spindle control panel breaks LinuxCNC?

2016-06-16 Thread Danny Miller
I have an X200 VFD. M3,M5,S18000 work fine, from MDI or code. My MPG's "spindle" button works. On the default panel, there's a "Spindle" button flanked with a CW/CCW indicator. Clicking any of that doesn't make the spindle go, even with "S" set to a valid RPM. It's not JUST that. Once you

Re: [Emc-users] Vectric Aspire 8.0 generates bad code for LinuxCNC

2016-06-04 Thread Danny Miller
Max vel 15, max accel 50. That cuts like 1" radius arcs. But the docs are saying that's basically what G64 with no P-parameter does, basically totally disregarding accuracy to keep the feedrate up. Danny On 6/4/2016 4:16 PM, andy pugh wrote: > On 4 June 2016 at 20:20, Danny Mil

[Emc-users] Vectric Aspire 8.0 generates bad code for LinuxCNC

2016-06-04 Thread Danny Miller
I've seen this several times... So Vectric Aspire 8.0 is a great program. Most of the time it works ok. However, we've found Gcode generation sometimes yield just this: G64 No "P0.001" parameter. Well that's pretty damn toxic, it'll create huge arcs instead of what it's supposed to do.

Re: [Emc-users] Copying an installation

2016-05-27 Thread Danny Miller
et something that resembles this: >>>> >>>> gene@coyote:~$ grep ' ifname ' /var/log/dmesg >>>> [1.401462] forcedeth :00:08.0: ifname eth0, PHY OUI 0x5043 >>>> @ 1, addr 00:1f:c6:62:fc:bb >>>> [1.929064] forcedeth 0000:00:09.0: ifname eth1, PHY

Re: [Emc-users] Copying an installation

2016-05-26 Thread Danny Miller
May 2016 at 19:51, Danny Miller <dan...@austin.rr.com> wrote: >> Any advice, folks? I've gotta move off that Dell machine ASAP and >> really want to avoid a whole reinstall. > I would suggest a complete reinstall of the OS and LinuxCNC, but keep > the same config files. The L

Re: [Emc-users] Copying an installation

2016-05-22 Thread Danny Miller
Any advice, folks? I've gotta move off that Dell machine ASAP and really want to avoid a whole reinstall. No idea why it works up to the point where I try to move axes and get joint following error just right there. Danny On 5/21/2016 3:07 AM, Danny Miller wrote: > OK, we cloned the dr

Re: [Emc-users] Copying an installation

2016-05-21 Thread Danny Miller
not check the target drive size. > > The easy way is to copy the home directory then install from a live cd > then copy the linuxcnc directory to the new drive. > > JT > > > On 5/7/2016 10:34 AM, Danny Miller wrote: >> So as per previous thread, I may be moving this to

Re: [Emc-users] Linuxcnc and Arduino

2016-05-17 Thread Danny Miller
I'm not sure what context you're saying you have for the XHC. I have he XHC-HB04 on LinuxCNC RT on the Linux RT kernel. It's a VERY smooth response, but partly because my machine is very fast. There is, however, a case for time delay if you select jogmode=normal and not =vnormal on a slower

[Emc-users] Copying an installation

2016-05-07 Thread Danny Miller
So as per previous thread, I may be moving this to another PC. And probably change to an SSHD. I spent a ridiculous amount of time getting the OS and LinuxCNC RT installed and configured. And I didn't do all of it myself so it's not a straight shot to repeat. I'm just saying if I start from

[Emc-users] Appropriate PCs

2016-05-06 Thread Danny Miller
I understand the computational requirements are not stressful, but I know some have management issues. Right now I have a old Dell computer with one of the chipsets specifically listed as "bad". I'm running Linux RT and LinuxCNC 2.7.4 with a 7i92 card but the latency report is pretty high. I

Re: [Emc-users] [XHC_HB04_CONFIG] doesn't work

2016-05-04 Thread Danny Miller
Any thoughts? This is turning into a problem. I don't know Tcl but I guess I could start messing with the script to see why it's not getting the parameters. Danny On 5/2/2016 1:47 AM, Danny Miller wrote: > I realized at least part of the [XHC_HB04_CONFIG] section just isn't > having an

[Emc-users] [XHC_HB04_CONFIG] doesn't work

2016-05-02 Thread Danny Miller
I realized at least part of the [XHC_HB04_CONFIG] section just isn't having an effect. I can't figure out why. I noticed before that "sequence =2" (before it was commented out) had no effect at all. I saw I could specify "-s 3" on the loadusr line so it didn't matter. I did end up with the

Re: [Emc-users] LinuxCNC as laser cutter?

2016-04-30 Thread Danny Miller
lack of control I have in Windows, compared to Linux. >> I think it's more of a philosophical difference than a technical >> difference. >> >> Sorry, but I haven't implemented any of this LinuxCNC laser stuff yet, >> so I have only this generic advice and no specific

Re: [Emc-users] LinuxCNC as laser cutter?

2016-04-29 Thread Danny Miller
logical progression. To some extent, this is an >> extension of the lack of control I have in Windows, compared to Linux. >> I think it's more of a philosophical difference than a technical >> difference. >> >> Sorry, but I haven't implemented any of this Li

Re: [Emc-users] LinuxCNC as laser cutter?

2016-04-29 Thread Danny Miller
d of just turning on there. There would be no need for smoothing here. I'm worried how bad rastering would get if it were represented in G-code. Then again, I do pull in huge raster jobs with 1/16" bits anyhow on the CNC. Danny On 4/29/2016 7:55 PM, andy pugh wrote: > On 30 April 20

[Emc-users] LinuxCNC as laser cutter?

2016-04-29 Thread Danny Miller
Having some preliminary thoughts about LinuxCNC's appropriateness to be a laser cutter, like 120W CO2. The other option is the open-source Lasersaur or Axecut. Those aren't particularly advanced trajectory planners or anything. Can it be a good tool for lasering? I did see where some

[Emc-users] wj200 vfd "wait-for-speed"

2016-04-29 Thread Danny Miller
I have a VFD running on: http://linuxcnc.org/docs/html/man/man9/wj200_vfd.9.html Actually it's an X200 VFD and the code is slightly different, but that's not important. I noticed that it doesn't wait for the spindle to get up to speed when started in-code. It just goes. What are my options

[Emc-users] Multiple XHC mpg pendants?

2016-04-27 Thread Danny Miller
I do love this wireless XHC mpg. Had some long-term plans of installing a CNC plasma not too far away, with the same system. Then I began to wonder if two of these can even exist in the same building at the same time. Obviously I don't want one broadcasting to both machines, or allow the

Re: [Emc-users] Edge detection in HAL

2016-04-24 Thread Danny Miller
. It's working super-nice now. I'm confused why halui.program.run needs a significant width. I figured it would register the command any time the command was asserted. Danny On 4/24/2016 2:07 AM, Philipp Burch wrote: > Hi Danny! > > On 24.04.2016 08:37, Danny Miller wrote: >> [

Re: [Emc-users] Edge detection in HAL

2016-04-24 Thread Danny Miller
his, when applied to the spindle > encoders output, allows higher Pgain in the spindle PID, stiffening the > speed vs load considerably on those machines that I have spindle > encoders in. > >> On 4/24/2016 2:07 AM, Philipp Burch wrote: >>> Hi Danny! >>> >&g

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