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langdons wrote:

You say LinuxCNC is way way better than Mach 3.

How so?

In short:
Mach3 = extremely limited
LinuxCNC = extremely versatile, like the T1000 from The Terminator, it changes shape to fit almost everything as far as machines go.

Perhaps I'm still misunderstanding, but the actuator you showed looks like it has a leadscrew with a pitch more like 5mm, not 50mm.

Just to make sure we're talking about the same thing, 'pitch' to me means the spacing between the screw threads. 50mm is an abnormally steep pitch unless it's a multi-start screw.

In other words, does the carriage really move 50mm for a single turn of the screw?

Yes, if the channel in enabled in the hal file, it should be recognized.

You can see the 7I74 pinout a bit better with:

mesaflash --device 7i97 --addr [card_ip_addr] --dbname3 7i74

Try out the transformers you have with the motors

Make sure the transformers don't overheat.

If they start to get warm, turn the machine off ASAP.

Remember that the wire inside the transformer heats up before the iron will.

The wire will burn before the iron laminations do.

Why not just isolate the logic with optoisolators?

VFD reminds me of A Series of Unfortunate Events

I am in the process of repairing a CNC machine where the spindle and VFD were replaced by the previous user with a router.

It's not that great.

Keep the spindle if you can, so long as it is well-made.

I wish split-phase inducion moters could be used as a CNC spindle, but they are so heavy (30lbs for 1/3HP), it would not really work out well.

You say LinuxCNC is way way better than Mach 3.

How so?

Thanks for he fast reply,
I did try an 7i73 on wat i now guess is channel 0 of the 7i74.
this was not recognized so i tryed with the other ports in the HAL.
Wat i now think if i understand write is that if put on any other channel it shuld probably just be recognized.
I will try this tomorrow.
Againe thanks for the fast help.
 

The 7I97_7I74D firmware only has one sserial port (port_0).
This port has 8 channels, channel 0 on the 7I97
and channels 1..7 on the 7I74. (channel 0 is skipped
on the 7I74 to make the channel numbering match
the 7I74 documentation)

The reason for this is that 2 sserial ports will not fit
in a 7I97's FPGA (with the standard 7I97 I/O).

The 7I97T's 7I74 config does have 2 sserial ports and
9 total channels. (possible because of its larger FPGA).

gblcody wrote:

Lcvette, Sorry, when I wrote this originally the site was having issues and I could not post. seems I forgot to add them when I tried to post the second time. 

Let me know if you need anything else! 

All the help is appreciated! 

for clarification, if the file names of the files you uploaded are the ones you intend to use, you need to use them in the ini file call as shown below:

Mach3 can obviously do a lot that I do not even immagine, same as Linux CNC.
Mach3 seems to be a dead end (obsolete hardware, obsolete software)

The Mesa Card is definitely better documented and I bought fairly cheap DM860 stepper drivers that seem to work (good enough for who its for).

This week I threw some of the equipment on the workbench and started messing with pncconfig.
Four motors are running The spindle drive is still an issue. (that ist next up)

Hi,

I am using a 7I97 and a 7I74 to get multiple SSerial connektions.
I did load the "7i97_7i74D.bit" direktly from mesanet.com.
Loading the Bit file seamd to have woarked. but i can not use any otther than sserial_port_0.
when using sserial_port_1 the config dose not load and tels me that not more than one sserial is avaleble.
I have attached the Therminal output from me reading the mesacard config.
In the SSerial section it says:
Module: SSerial
There are 1 of SSerial in configuration

How can i change this on my card so it recognises that thear shuld be 8 chanels and not 1.

If thear is other information needed to find the source of this problem, tell me and i will do my best to provide the info.

Means the same to me! Trash means, it goes out the door. Separating things is very common here and it is easy to bring old circuit boards and such to the recycling companies. .-)

Messing around with QLinearGradients and thinking of adding them to the Stylesheet Builder.



Is it worth it?

JT

The one attached is similar.