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Help wanted: MESA board selection, parallel vs ethernet and THCAD understanding.
- tommylight
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6 years 3 months ago #173852
by tommylight
Replied by tommylight on topic Help wanted: MESA board selection, parallel vs ethernet and THCAD understanding.
Eusurplus.com has them in stock and they are in Portugal, so in 3 to 4 days you should have it there.
eusurplus.com/index.php?route=product/pr...ct_id=64&search=7i95
Before you make that order, do your drives have inputs for the encoders ? if yes, then a 7i76E might be a better choice.
eusurplus.com/index.php?route=product/pr...ct_id=64&search=7i95
Before you make that order, do your drives have inputs for the encoders ? if yes, then a 7i76E might be a better choice.
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- Gruntled Raptor
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6 years 3 months ago #173860
by Gruntled Raptor
Replied by Gruntled Raptor on topic Help wanted: MESA board selection, parallel vs ethernet and THCAD understanding.
ah i was just going to connect the encoders directly as the stepper driver can function in either mode (the drive do have inputs for the encoders) i figured connecting the encoders directly to the board would just give me a little more control over how out of alignment was handled. sadly the only output from the driver is an error/something is wrong/ its to far gone to correct signal.
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6 years 3 months ago #173881
by tommylight
Replied by tommylight on topic Help wanted: MESA board selection, parallel vs ethernet and THCAD understanding.
That should also work, and it is more to my liking having the loop closed in LinuxCNC.
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4 years 5 months ago #242772
by Gruntled Raptor
Replied by Gruntled Raptor on topic Help wanted: MESA board selection, parallel vs ethernet and THCAD understanding.
Well, that took me about 1.5 years longer than I wanted it to, but I'm finally at a point where I need to order my control card the problem is that the
7i95
I was going to order is now out of stock everywhere? Are these no longer being made, is there perhaps a more modern card I should now be considering?
I apologize for what might be the low effort on my part, I'm still shaking my head trying to rattle out all the research I did on the mater nearly 2 years ago now. I'm approximately 1 week away from my table only needing a control card, so any help pointing me in the right direct would be most appreciated.
I apologize for what might be the low effort on my part, I'm still shaking my head trying to rattle out all the research I did on the mater nearly 2 years ago now. I'm approximately 1 week away from my table only needing a control card, so any help pointing me in the right direct would be most appreciated.
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4 years 5 months ago #242776
by tommylight
Replied by tommylight on topic Help wanted: MESA board selection, parallel vs ethernet and THCAD understanding.
www.mesaus.com
www.eusurplus.com
There are some stores in Germany and Czech Republic, but the prices are much higher.
>Did not check stock.
www.eusurplus.com
There are some stores in Germany and Czech Republic, but the prices are much higher.
>Did not check stock.
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- Gruntled Raptor
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4 years 5 months ago #242793
by Gruntled Raptor
Replied by Gruntled Raptor on topic Help wanted: MESA board selection, parallel vs ethernet and THCAD understanding.
Yeah, both out of stock, can't find these cards in stock anywhere. Which was the same problem I had 2 years ago tbh.
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4 years 5 months ago #242794
by robertspark
Replied by robertspark on topic Help wanted: MESA board selection, parallel vs ethernet and THCAD understanding.
eusurplus.com/index.php?route=product/pr..._62_71&product_id=62
PLUS
eusurplus.com/index.php?route=product/pr..._61_60&product_id=73
PLUS (if you can't be bothered to source from elsewhere... all in the same box)
eusurplus.com/index.php?route=product/pr...59_63&product_id=130
Sure it's not cheaper but its available NOW (probably not too much longer) due to chip shortage + backlog of orders.
PLUS
eusurplus.com/index.php?route=product/pr..._61_60&product_id=73
PLUS (if you can't be bothered to source from elsewhere... all in the same box)
eusurplus.com/index.php?route=product/pr...59_63&product_id=130
Sure it's not cheaper but its available NOW (probably not too much longer) due to chip shortage + backlog of orders.
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4 years 5 months ago #242796
by robertspark
Replied by robertspark on topic Help wanted: MESA board selection, parallel vs ethernet and THCAD understanding.
PLUS your chosen THCAD card....
eusurplus.com/index.php?route=product/category&path=59_61_67
with a 50:1 voltage divider use a 5V
with 20:1 (or any other lower than 50:1!,) use a 10V
or use a 300v / 10V + resistors for 1:1 ratio
eusurplus.com/index.php?route=product/category&path=59_61_67
with a 50:1 voltage divider use a 5V
with 20:1 (or any other lower than 50:1!,) use a 10V
or use a 300v / 10V + resistors for 1:1 ratio
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4 years 5 months ago #242799
by Gruntled Raptor
Replied by Gruntled Raptor on topic Help wanted: MESA board selection, parallel vs ethernet and THCAD understanding.
i went to the trouble of having encoders on all my steppers which I was going to feedback to the 7I95 and as my I might be having my controller/drivers in a box a little way from the computer I'm quite keen on an Ethernet solution. i have a some crap POS control card that came free when i bought the steppers, so that can maybe tide me over till 7I95 are ready, the question is WHEN they will be ready to ship again. My fault really, i should have ordered this back ages ago when they were instock. i just didn't really have the capital for it at the time.
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4 years 5 months ago #242801
by robertspark
Replied by robertspark on topic Help wanted: MESA board selection, parallel vs ethernet and THCAD understanding.
you could use a 7i92 with some custom firmware.... on the second port
what does your setup look like?
Do you have a rough schematic / sketch of all your devices
what does your setup look like?
Do you have a rough schematic / sketch of all your devices
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