Controller board for linux cnc
- DavidCNCDIY
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27 Feb 2022 23:22 - 27 Feb 2022 23:25 #235957
by DavidCNCDIY
Controller board for linux cnc was created by DavidCNCDIY
Hello im new to the cnc world and im looking for a budget friendly cnc controller. I want to run the linux cnc software on a raspberry pi 4 and then connect that to a board. Does anybody know if i can use the pokeys for this like the Pokeys57CNC. Or does anybody have a good alternative to the pokeys. With the feathers the Pokeys have like pins for encoders and sensors.
Last edit: 27 Feb 2022 23:25 by DavidCNCDIY.
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- BigJohnT
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27 Feb 2022 23:30 #235959
by BigJohnT
Replied by BigJohnT on topic Controller board for linux cnc
The lowest cost would be a PC with a parallel port and a low cost breakout board.
JT
JT
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- ALittleOffTheRails
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27 Feb 2022 23:46 #235962
by ALittleOffTheRails
Replied by ALittleOffTheRails on topic Controller board for linux cnc
An OrangePi with allwincnc, a bit of vero board some 74hct245 to get 5v out and some 74lvc245 to for the inputs (3.3v device but has 5 tolerant inputs) and you're good to go.
allwincnc.github.io/install.html
allwincnc.github.io/install.html
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- DavidCNCDIY
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28 Feb 2022 21:18 - 28 Feb 2022 21:27 #236033
by DavidCNCDIY
Replied by DavidCNCDIY on topic Controller board for linux cnc
hallo what kind of breakout bord would you advice because i see alot of option and allot of people advise mesa bords. because i already have a raspberry pi 4 with a parrallel port board. And i have a 100 euro budget for the controller not that low of a budget but absolutly not that high.
Last edit: 28 Feb 2022 21:27 by DavidCNCDIY.
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- DavidCNCDIY
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28 Feb 2022 21:22 #236034
by DavidCNCDIY
Replied by DavidCNCDIY on topic Controller board for linux cnc
thx for the reply but i dont realy like the amount of inputs im gone run 6 sensors for homing and i also want to run a z bit setter
and later a probe.
and later a probe.
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- ALittleOffTheRails
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02 Mar 2022 05:58 #236154
by ALittleOffTheRails
Replied by ALittleOffTheRails on topic Controller board for linux cnc
There is about 16 i/o available on the camera connector. All that is required to physically access them is the correct cable and FPC breakout board.
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- cakeslob
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02 Mar 2022 07:10 - 02 Mar 2022 07:21 #236155
by cakeslob
Replied by cakeslob on topic Controller board for linux cnc
if you already have a pi and a breakout, imho, best thing for that budget is a 7c81 mesa card. it fits in between those 2 things like a glove.
edit, off the rails, theres really only like 7 usable ones, 9 if you use the i2c0 channel. between the 2 cables theres only like 15/30 pins are io
edit, off the rails, theres really only like 7 usable ones, 9 if you use the i2c0 channel. between the 2 cables theres only like 15/30 pins are io
Last edit: 02 Mar 2022 07:21 by cakeslob.
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- DavidCNCDIY
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02 Mar 2022 21:31 - 02 Mar 2022 22:20 #236216
by DavidCNCDIY
Replied by DavidCNCDIY on topic Controller board for linux cnc
alright im getting a bit confused. So you need a computer to run linux cnc for me thats the raspberry then you need a controller for the motor steps and inputs like sensors. But what connector do i use between the 2 i read that one of the best ways is using paralllel. Or serial is this right what im saying. And what is a good option for the controller arround 100 euro.
Im probaly gone use this adapter board: github.com/ChrisWag91/PI-LCNC
edit is a mesa 7I76 daughter a good option
Im probaly gone use this adapter board: github.com/ChrisWag91/PI-LCNC
edit is a mesa 7I76 daughter a good option
Last edit: 02 Mar 2022 22:20 by DavidCNCDIY.
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- tommylight
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02 Mar 2022 22:38 #236221
by tommylight
Replied by tommylight on topic Controller board for linux cnc
7i76 is not usable with parallel port, it does require one of the following to work
7i92 ethernet
or
5i25 PCI slot
or
6i25 PCI-E slot
There is also the 7i76E that has everything included, or 7i96 that has less IO and is cheaper. Both are ethernet.
Mesa has boards for RPI, but i never used them so i will leave the answer to someone with more experience with them.
7i92 ethernet
or
5i25 PCI slot
or
6i25 PCI-E slot
There is also the 7i76E that has everything included, or 7i96 that has less IO and is cheaper. Both are ethernet.
Mesa has boards for RPI, but i never used them so i will leave the answer to someone with more experience with them.
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- ALittleOffTheRails
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02 Mar 2022 23:06 #236224
by ALittleOffTheRails
Replied by ALittleOffTheRails on topic Controller board for linux cnc
I'd go for a 7i92 for a couple of reasons.
1 Being ethernet it's not entirely Rpi specific, if the RPi dies you can use a std PC
2 The computer can be some distance away connected via ethernet.
2 You can use a normal PP BoB to begin with connected to the 7i92.
3 Later on you can "upgrade" to a 7i76.
4 Or you can connect to Smart Serial boards, if you need extra I\O.
5 Mesa is really well supported by the forum.
6 Mesa products will always have a good resell value.
I'm not entirely sure what step rates you can get with the RPi just using gpio, such as the board you linked to does
1 Being ethernet it's not entirely Rpi specific, if the RPi dies you can use a std PC
2 The computer can be some distance away connected via ethernet.
2 You can use a normal PP BoB to begin with connected to the 7i92.
3 Later on you can "upgrade" to a 7i76.
4 Or you can connect to Smart Serial boards, if you need extra I\O.
5 Mesa is really well supported by the forum.
6 Mesa products will always have a good resell value.
I'm not entirely sure what step rates you can get with the RPi just using gpio, such as the board you linked to does
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