Messages

1

PoKeys / Re: Pokeys57cnc 10v spindle control only reaches 8.1v

« on: February 28, 2017, 11:17:37 AM »

Yes, the output is 10v at 100% if I don't connect the VFD. When the VFD is connected it goes to 8.1 max. If I trim it up to 10v I can get full speed but the slowest it will go is 9000 rpm, and thats at 25%. Lower percentages than 25 start giving higher voltages and speed increases.

2

PoKeys / Re: Pokeys57cnc 10v spindle control only reaches 8.1v

« on: February 25, 2017, 12:55:29 PM »

With the VFD on and the jumper set to remote speed control, the impedance of the VI terminal and analog ground terminal is 19.9K ohms

3

PoKeys / Re: Pokeys57cnc 10v spindle control only reaches 8.1v

« on: February 11, 2017, 10:30:28 PM »

Did some experimenting and when I disconnect the VFD from the Pokeys, the voltage output behaves like it is supposed to. It is when the VFD is attached that the Pokeys output gets messed up. Is this ground loop? What would be a solution to try?

4

Mach4 General Discussion / Re: TouchOff UI

« on: February 11, 2017, 10:16:44 PM »

FWIW, I am running the PokeysCNC board with plugin and the touchUI works for me. I do have one issue (posted this in December and got no replies) When I use the Z touch off during a tool change mid-program, as soon as I click the find Z button the next line of code to run resets to 1. The g code window does not move and the correct line is still highlighted blue, but I have to click a different line and then the correct line to set it before I can continue the program.

5

Mach4 General Discussion / Touch off UI resets 'next line of code'

« on: December 24, 2016, 09:21:30 AM »

Mach4, latest hobby release. When I use the touch UI for Z zero it runs perfectly, but also the instant I click the button, the 'next line of code' in the run ops tab resets to 1. The G code window still shows the correct line highlighted in blue but if I cycle start, it runs from the beginning. If before I hit cycle I click a line above then the correct line (I haven't tried just clicking the correct line, sorry), the next line of code goes back and it runs as intended.

Also if I wanted to have a permanent touch plate for tool changes (router), does this require a LUA script or can it be done by another means? What g code would I need to run an auto Z function in this case. Thanks

Jason

6

PoKeys / Pokeys57cnc 10v spindle control only reaches 8.1v

« on: December 23, 2016, 10:04:00 PM »

Just finished building a Routakit and fit a Pokeys57cnc to it. Tonight I tried to connect the Huanyang VFD to the board. The relay turns it on and I finally got speed control but not full RPM and it is VERY non-linear. First, symptoms.

S24000 only gets me 20200 RPM, voltage reads 8.1v. S12000 produces 13200 with 4.0v. S6000 is 11000RPM and 2v. So far linear voltages but not VFD response (I'll look into the VFD after I solve the voltage). Then it gets screwy. S3000=9000RPM and 1.4v. S1000=13000RPM with voltage back UP to 4v. If I close Mach4 and use the Pokeys utility and move the PWM slider, same voltage profile is output 0% is 4v, 25% is 2v, 50% is 4v and 100% is 8.1v. In Mach4 diagnostics of the Pokeys plugin, the monitor box tracks correctly from 0% to 100%, but shows it on pin 18 for some reason. All spindle settings are set to pin 17 as spindle control. Board power is from a 24v 5A "laptop" type supply and the jumper is set to EXT for power. I have measured the voltage at both the VFD and Pokeys end and even disconnected the 10v wire and measured output. Ground wire is connected to GNDi and I tried both terminal 1 and 4 for GNDi. Mach spindle settings have been varied with no change in results (i.e. range 6000-24000, 0-24000, PWM frequency varied from 800 to 20000. HELP

Jason

7

Mach4 General Discussion / Re: New build, stepper motors very jerky

« on: December 17, 2016, 06:12:37 PM »

Ok, different laptop tried and motors run smoothly. I have to wait for Monday to get a license for that one (I bought from a reseller and can't use Artsoft manager). Now to debug limit and home switches.

8

Mach4 General Discussion / New build, stepper motors very jerky

« on: December 17, 2016, 12:03:02 AM »

Hello everyone, new user here with a problem. I have configured steppers before, but first time with Mach and Pokeys57cnc board.

I initially built a Routakit with a PlanetCnc board and Posteps 25-16 drivers. I got smooth motion from that setup, but realized I wanted Mach 4. So before I finished the build I bought the Pokeys controller and Mach 4. The controller is plug and play with the drivers and using the Posteps program I get smooth motion from all axis with the new electronics. But Mach 4 will produce extreme stuttery and jerky motion. Steps/unit have been set with a range of 3 and 14 in/sec2 tried. Tried jogs from 10 to 300 in/min. My first thought is low CPU performance. I loaded Mach in my shop laptop, which is a Core Duo 1.6GHz, 4GB ram. Is there a way to verify this before I buy a new laptop? Thanks for any help you can give.

Jason