Messages

381

General Mach Discussion / Re: Jerky Jog before I even Code

« on: March 27, 2019, 12:48:40 AM »

I think the info is misunderstood.
We are talking about discrete MICROSTEPS which is a division of a whole step. The number of magnets and coils will decide how you can divide equally. If is it not equal, the motor will only give you the nearest microstep (round up or round down) - that is why the motor is jerky.


By the way, another user who complained that his motor COULD NOT moving, took my suggestion of 1600 microsteps and everything from then works for him.

If the engine is misfiring buying better tires, and cockpit and bucket seats, and GPS is NOT going to fix the problem.
Sorry.

382

General Mach Discussion / Re: Jerky Jog before I even Code

« on: March 26, 2019, 08:13:34 PM »

That's not right,
If you have 2 or 4 coils (2-phase motors) you cannot divide by 5 or 10
If you have 5 coils or 10 coils (5-phase motors) you CAN divide by 5 or 10.

His motors are jerky now because 2 or 4 coils cannot divide by 5 or 10.

383

General Mach Discussion / Re: Jerky Jog before I even Code

« on: March 26, 2019, 08:00:28 PM »

Hi,

Dip Switches are set to 2000 pulse/rev IS DEFINITELY WRONG.

Rubbish, many stepper controllers have microstep regimes which include multiples of five or ten.

Craig

ONLY if you have "FIVE PHASE" stepper motors which is not commonly used in DIY CNC.

His steppers I guessed are two-phase. That is why he needs binary numbers (1,2,4,8,16,32) for microstep


Detailed information :

1. Nema 34 stepper motor:

Technical Specifications

Part No.:                         34HS5435C-02B2

Frame Size:                     NEMA34

Phase:                             2 Phase

Step Angle:                    1.8 degree

Current:                        3.5A

Rated Voltage:         5.6V

Resistance:                   1.6 Ohm/phase

Inductance:                   22mH/phase

Holding torque:           1600oz-in     (10.5N.m)

Detent torque:                  24.5N.cm

Rotor inertia:                3600g.cm²

Number of wire leads:   4 (Red A+ ,Green A- ,Yellow B+ ,Blue B-)

Weight:                               5kg

Length:                                151mm

The diameter for motor shaft is 14mm

384

General Mach Discussion / Re: Jerky Jog before I even Code

« on: March 26, 2019, 07:22:34 PM »

Hi,

Dip Switches are set to 2000 pulse/rev IS DEFINITELY WRONG.

Rubbish, many stepper controllers have microstep regimes which include multiples of five or ten.

Craig

ONLY if you have "FIVE PHASE" stepper motors which is not commonly used in DIY CNC.

385

Mach4 General Discussion / Re: Mach4 Parallel Port Legacy Plugin

« on: March 26, 2019, 06:17:14 PM »

PlasmaCam still use parallel port. But their software DesignEdge supports the latest WINDOWS 10 64 bits using the parallel port with no problem.

386

General Mach Discussion / Re: Jerky Jog before I even Code

« on: March 26, 2019, 05:47:59 PM »

Dip Switches are set to 2000 pulse/rev IS DEFINITELY WRONG.

Stepper is usually 1.8deg/step so is 200pulse/rev
Assuming you use 8 microsteps, you should set to 1600 pulse/rev.

(10 is not a binary number unlike 1,2,4,8,16)

look ahead should be 200 lines or more

387

General Mach Discussion / Re: MACH3 THC not responding to torch up/down inputs

« on: March 26, 2019, 12:56:10 PM »

most external motion controller fail to support THC

1. Parallel Port Works (MACH3 with win 7 32bits)
2. USB-MC & ETH-MC motion controllers works
https://www.youtube.com/watch?v=xJv*********CplzE
3. ESS still trying to get support for THC

Novem 1.1 was reported on this forum to fail to support THC
Not sure about Novem 2.0 that you have.

388

Mach4 General Discussion / Re: Mach4 Parallel Port Legacy Plugin

« on: March 26, 2019, 06:02:36 AM »

Why on earth would you want to run Mach4 off a parallel port? You could use that $25 toward a purchase of a Warp9 or other modern controller?

As long as the so called modern Controller does NOT support less functions and is making machine less reliable.
THC?
Sensitivity to EMI?
Buffer underuns?
Pendants not supported?
Slave axis?
Just be honest...

389

General Mach Discussion / Re: MACH3 THC not responding to torch up/down inputs

« on: March 26, 2019, 04:36:19 AM »

I have built a 4ftx8ft plasma table from scratch and everything so far has been working great except the torch height controller function in mach3. All ports/pins are setup correctly and diagnostics screen shows arc okay, torch up and torch down signals working correctly.

I am using the nvem v2 controller and pricecnc thc connected to my hypertherm 1250. Voltage readings are correct and its sending torch up/down/arc okay signals no problem while running some cuts. The Z axis just simply is not moving from torch up/down signals. I have tried emulating signals with keyboard as a test and still no movement. Page up/down jogging z axis works fine and my g code probes the work surface at start of every cut no issues. The arc okay signal does work. with plasma cutter tuned off G code will wait for arc okay before proceeding.

I have tried enable/disable "allow THC UP/DOWN Control even if not in THC Mode" and it makes no changes. If i enable "set OUTPUT5 when in THC" output 5 does toggle on when i switch on the THC enable button. Running in mm and THC max = 20mm minimum = -2mm. THC Speed = 20.

I'm sure its something simple I have missed but don't have much experience with this software yet. Would greatly appreciate any help you may be able to offer. You can see a video of my setup here: https://www.youtube.com/watch?v=RcUxoCZ0VbE

A step at a time
1. Is your plug-in "Novusun_NVEM-Novusun-PlugIn-Ver-3.0b" or later?

390

Mach3 under Vista / Re: Mach3 Ethernet IP setting

« on: March 26, 2019, 12:05:05 AM »

Hi,
tell that to the people who've lost their money and wasted their time.

Craig

I have bought tens of thousands Australian dollars through ebay. Only 3 items didn't work. I got full refund for 2 and an agreed partial refund for the third which I then repaired myself.
Things don't work if people do not read manuals before or after they buy and communicate with seller - fairly.
My ebay ratings is still 100%.