I really like the way you explain everything so a old country boy like myself can understand and keep up with. what card would your recommend to use with a CNC mill or lathe. The lathe is a G0602 the Mill is Harbor freight. I am going to use Linux CNC. Both of these I will have to convert into CNC. Just starting my research. Any advice would be helpful.
I'm not really the one to ask. This is my first LinuxCNC build too. When I was doing research many people recommended the Mesa 7i76E card. It has plenty of I/O, Spindle control, and encoder input. I mainly chose the Mesa 7i76E because I wasn't (and aren't) really sure how much I'm going to build out the G0704 Mill. Power drawbar? Tool changer? The Mesa card provides me with the option to do as much as I want to. That said. I've been reading on-line, that Mesa is out of stock at the moment (Fall of 2022) do to IC chip availability. Hopefully that will get sorted out by sometime in the first half of 2023.
Great information. I want to get one of these cards soon to play around with. A few questions: what kind of enclosure is that? And doesn't the 7i76ED allow higher current devices to be driven since it's syncing current?
The Enclosure is a Qilipsu 20-inch which can be found here... www.amazon.com/gp/product/B092QL1745/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 ...and I talk about it in this video: th-cam.com/video/w0xYw-2frEo/w-d-xo.html Regarding the output current of the 7I76ED... The documentation states (all caps in the documentation, I'm not yelling): FIELD OUTPUT CURRENT ---- 350 mA Per output (RESISTIVE LOADS AND INDUCTIVE LOADS WITH FLYBACK DIODE) FIELD OUTPUT CURRENT ---- 60 mA Per output (INDUCTIVE LOADS WITH NO FLYBACK DIODE) PER DRIVER CHIP CURRENT ---- 1.4A Per chip This is for both the 7I76E and 7I76ED versions. My board has OnSemi NCV7608 Octal Configurable Low/High Side Driver chips for the field output drivers. The current rating, from the data sheet, is the same for both sinking and sourcing (which is stated above). So, to answer your question, no the 7I76ED does not allow higher current devices due to its sinking current configuration... based on my research. Hope this helps. Edited for typo.
Sorry, I'm not affiliated with Mesa Electronics so I don't have that information first hand. That said, the LinuxCNC forum is a good place to look for information. Have a look in the LinuxCNC forum under... Hardware & Machines -> Driver Boards -> Mesa Suppliers. Good luck with your CNC build.
Amazing card description! So far the best video that I saw on 7i76e. Thanks a lot!
Thanks!
...and, your welcome.
I agree
Great video, it helps a lot in understanding the 7i76e. This is the best resource for the 7i76e! Thank you
Brilliant video, thank you. Now I understand why the various power buses are the way they are, flexibility.
I like your 3d printed mount. It keeps things clean.
Thank you SO MUCH for all the work you put into this very detailed explanation. God bless you.
This is SUPER helpful, thank you for the clear explanation!
super useful information,thanks a lot for sharing 👍🙏
Great video, very informative!
Thanks.
I really like the way you explain everything so a old country boy like myself can understand and keep up with. what card would your recommend to use with a CNC mill or lathe. The lathe is a G0602 the Mill is Harbor freight. I am going to use Linux CNC. Both of these I will have to convert into CNC. Just starting my research. Any advice would be helpful.
I'm not really the one to ask. This is my first LinuxCNC build too. When I was doing research many people recommended the Mesa 7i76E card. It has plenty of I/O, Spindle control, and encoder input. I mainly chose the Mesa 7i76E because I wasn't (and aren't) really sure how much I'm going to build out the G0704 Mill. Power drawbar? Tool changer? The Mesa card provides me with the option to do as much as I want to.
That said. I've been reading on-line, that Mesa is out of stock at the moment (Fall of 2022) do to IC chip availability. Hopefully that will get sorted out by sometime in the first half of 2023.
Bravo!
Great information. I want to get one of these cards soon to play around with. A few questions: what kind of enclosure is that? And doesn't the 7i76ED allow higher current devices to be driven since it's syncing current?
The Enclosure is a Qilipsu 20-inch which can be found here...
www.amazon.com/gp/product/B092QL1745/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
...and I talk about it in this video: th-cam.com/video/w0xYw-2frEo/w-d-xo.html
Regarding the output current of the 7I76ED... The documentation states (all caps in the documentation, I'm not yelling):
FIELD OUTPUT CURRENT ---- 350 mA Per output
(RESISTIVE LOADS AND INDUCTIVE LOADS WITH FLYBACK DIODE)
FIELD OUTPUT CURRENT ---- 60 mA Per output
(INDUCTIVE LOADS WITH NO FLYBACK DIODE)
PER DRIVER CHIP CURRENT ---- 1.4A Per chip
This is for both the 7I76E and 7I76ED versions.
My board has OnSemi NCV7608 Octal Configurable Low/High Side Driver chips for the field output drivers.
The current rating, from the data sheet, is the same for both sinking and sourcing (which is stated above).
So, to answer your question, no the 7I76ED does not allow higher current devices due to its sinking current configuration... based on my research.
Hope this helps.
Edited for typo.
Hello, Where can I buy it in Europe ? Thank you in advance !
Sorry, I'm not affiliated with Mesa Electronics so I don't have that information first hand.
That said, the LinuxCNC forum is a good place to look for information. Have a look in the LinuxCNC forum under... Hardware & Machines -> Driver Boards -> Mesa Suppliers.
Good luck with your CNC build.
Thank you for that !
You're welcome.