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Messages - joeaverage

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6811
General Mach Discussion / Re: Control A131 ASKPOWER with MACH3
« on: August 25, 2017, 05:27:38 PM »
Hi,
I assume that because your trying to set up an RS485 link that you wish to control your VFD by serial/Modbus method? Why?

Most people use a relay and an analogue voltage. Is there a reason that you wish to do it otherwise?

Craig

6812
General Mach Discussion / Re: Using USB and Parallel Port together
« on: August 25, 2017, 02:28:54 AM »
Hi,
I replied to your question in another thread
Quote
Hi,
it is not possible to have two motion controllers active at once. Given that a parallel port is a motion control device then I suspect its not
possible to have it active at the same time as a USB controller.

Something similar is possible with Mach4. You can still only have one motion controller, say an ESS, but have another board like a PoKeys 57E active with
the 57E behaving as an IO board only. Whether a similar arrangement can be done in Mach3 I don't know.

It certainly is possible for Mach3 to accommodate both serial and/or Modbus data in addition to its regular motion controller.

The other way to achieve more input is to use a board that has it already. An ESS has three 'ports' worth of IO, a PMDX-424 has two 'ports' worth
and a PoKeys 57E or 57U has 55 digital IOs, some of which can be configured as analogue IO, very flexible. Any of these boards would allow you
to control your machine and have maybe a dozen or more inputs left over.

You might look at the ModIO board from Homan Designs
https://www.homanndesigns.com/index.php?main_page=product_info&cPath=54_2&products_id=4&zenid=dplqe4sf2nmjf00c6rh1gdhts7

Craig

6813
General Mach Discussion / Re: Threading Wizard
« on: August 24, 2017, 02:56:20 PM »
Hi,
it is not possible to have two motion controllers active at once. Given that a parallel port is a motion control device then I suspect its not
possible to have it active at the same time as a USB controller.

Something similar is possible with Mach4. You can still only have one motion controller, say an ESS, but have another board like a PoKeys 57E active with
the 57E behaving as an IO board only. Whether a similar arrangement can be done in Mach3 I don't know.

It certainly is possible for Mach3 to accommodate both serial and/or Modbus data in addition to its regular motion controller.

The other way to achieve more input is to use a board that has it already. An ESS has three 'ports' worth of IO, a PMDX-424 has two 'ports' worth
and a PoKeys 57E or 57U has 55 digital IOs, some of which can be configured as analogue IO, very flexible. Any of these boards would allow you
to control your machine and have maybe a dozen or more inputs left over.

Craig

6814
Mach3 under Vista / Re: Mach3 under win10
« on: August 22, 2017, 02:53:07 PM »
Hi,
the TinyG will not work with Mach, 3 or 4.

The principle activity of Mach is a Gcode interpretor, secondarily but still importantly, it is an IO program. In the early days when the parallel port
was the only option for hobbyists it also provided the code for the PC's CPU to be the motion controller. These days most people use an external
motion controller like the UC100 or a Smoothstepper. The parallel port still works and is free but it can be problematic and restricts the choice of
PC's you can use.

Probably the cheapest way forward for you, if you wish to go the Mach track at all, is a UC100 or a PMDX-411 and a Gecko G540.
The UC100 or PMDX-411 are motion controllers, they plug into a USB port on your PC and produce output signals on a DB25 plug familiar to
anyone who've used a parallel port in the past. They are about $100. The Gecko G540 is a combination stepper motor driver and breakout board.
It accepts signals from a DB25 socket, just perfect for the UC100/PMDX-411, and has four DB9 plugs for four steppers and a bunch of screw terminals
for home/limits/spindle etc. The G540 can handle 50V, not earth shattering but quite enuf to make your steppers take notice. You can set the motor
output current by soldering a resistor of the right size into your DB9 plug, easy. The G540 is $300. As I've said before and others will endorse Gecko
make reliable gear, I'm sure you can find cheaper but I doubt you'll find better.

With these two items and the licence cost of Mach you are looking at an investment of about $600. You might wangle a way to do it cheaper but probably
not by much and certainly with less manufacturers and forum support when it comes time to get it to work.

The advantage of Mach over the software that you've already tried is that the Gcode programs which run it are 'industry standard', or at least as standard
as it gets, it copies Fanuc Gcode, about 80% of the industrial market. So you could go to a half million dollar machining centre and see and understand the same
code that runs your router at home. Also all the CAD/CAM programs which are used industrially you can now use. Be warned a lot of them are VERY expensive,
Mastercam, one of the oldest and most capable CAM programs costs about $20,000 and $2500 a year! There is a new player out there though which is transforming
the hobby CNC scene, its called Fusion 360. It is a CAD/CAM program written and maintained by the Autodesk, the same company who bring us AutoCAD and
HSMWorks two very capable and expensive bits of software, but Fusion 360 is free! Even better than free is its damn good too. Even if you decide not to go Mach3
you can still download and fiddle with Fusion 360.

You'll have to decide whether Mach represents a good investment for you. You can download and experiment with Mach3 and Mach4 without cost. The Demo versions
are fully featured but can only do tiny little jobs before you have to reset it. My personal preference is Mach4 being the new and developing version.

I have no idea what a smoothieboard is...I have Mach thanks and don't need any of the pretenders!

Craig

https://www.pmdx.com/
http://www.cncdrive.com/
http://www.geckodrive.com/
 

6815
General Mach Discussion / Re: lost steps on y after a z move.
« on: August 22, 2017, 03:15:08 AM »
Hi,
still better in the workshop than at the pub!

Craig

6816
Hi,
you could issue MDI codes but you'll have to work out the Gcode manually.

Craig

6817
General Mach Discussion / Re: Mill Spindle Speed Control - DC Motor
« on: August 21, 2017, 05:53:27 AM »
Hi Keith,
yeah that would be kool.

Craig

6818
General Mach Discussion / Re: Mill Spindle Speed Control - DC Motor
« on: August 21, 2017, 05:47:18 AM »
Hi Keith,
I live in Akaroa, about 80k from Christchurch. I somehow imagined you lived in...I don't know...Sweden or somewhere.

Craig

6819
General Mach Discussion / Re: lathe will not thread
« on: August 21, 2017, 05:35:01 AM »
Hi fast89,
that's about 660kHz. What controller are you using? I know the ESS says its good to 4MHz so 660kHz should be fine with differential signalling.
Anyway are you trying to thread at 4000rpm? General turning I can imagine 4000rpm but threading?

Craig

6820
General Mach Discussion / Re: Mill Spindle Speed Control - DC Motor
« on: August 21, 2017, 05:23:42 AM »
Hi,
by the way go for the biggest and most powerful you can squeeze in there and/or afford. You may not use it all often, but you will use it
and the bigger it is the easier it will do it.

Craig

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