New Project with Mesa 7I96 and THCAD-05

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27 May 2021 20:07 #210463 by TexasCNC
Awesome thanks

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28 May 2021 23:24 #210567 by TexasCNC
I got the machine cutting and working still need to tune some minor details but so far working.
I have the thcad-05 and was trying to hook this up but was trying to see where they are hooking up the output to from board to circuit?
Attachments:

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28 May 2021 23:42 #210570 by phillc54
Similar to the THCAD-10 in the pic you have connected but use the ENB+ and ENB- instead of the ENA ones.

forum.linuxcnc.org/38-general-linuxcnc-q...-05?start=190#210230

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28 May 2021 23:55 - 01 Jun 2021 09:27 #210572 by rodw
Wire it as shown but leave the AC relay out and follow the notes below the thcad. (as Phill says use ENCB)
Install the correct bit file
add this to your hal file (make sure the encoder.01 is numbered correctly)
# --- 7i76e ENCODER SETUP FOR OHMIC SENSING---
setp hm2_7i76e.0.encoder.01.scale -1
setp hm2_7i76e.0.encoder.01.counter-mode 1

Check to make sure
hm2_7i76e.0.encoder.01.velocity is showing some data in halshow. It should be hovering around your 0 volt frequency
Download ohmic3.comp from here and from the command prompt type
sudo halcompile --install ohmic3.comp
You may need to install the linuxcnc dev tools to do this.
If a RIP build, drop the sudo

File Attachment:

File Name: ohmic3_202...-28.comp
File Size:7 KB


Copy this to your config directory, edit the data as required for your version of the THCAD-5

File Attachment:

File Name: spaceship_...5-28.hal
File Size:1 KB


add this file to your ini file after your main config file
[HAL]
HALUI = halui
HALFILE = my_LinuxCNC_machine.hal
HALFILE = spaceship_ohmic.hal

You should be good to go!
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Last edit: 01 Jun 2021 09:27 by rodw.

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29 May 2021 00:02 #210574 by rodw
Ooops, looks like you also need this line in the hal file I shared
net ohmic-vel ohmicsense.velocity-in <= hm2_7i76e.0.encoder.01.velocity

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29 May 2021 00:45 #210577 by TexasCNC
So I am guessing that I just change “7i7e” to my board 7i96

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31 May 2021 22:12 #210825 by TexasCNC
Gave me a error when installed the files but I do I need to have the card wired up when turning the 7i96 card to the enb? How can I check of the card has the bit file installed I think I had done it just don’t remember.

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31 May 2021 23:32 #210831 by TexasCNC
I see your comp file am I suppose to add that to my config file directory?

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01 Jun 2021 02:46 #210846 by TexasCNC
Well will have to wait on this ohmic part cause I am running a job that is a little bigger than my 2 inch test circles I was doing a couple of days ago and it looks like the THC is not working it’s not moving up or down. I see the voltage marking on the GUI and I am using the latest sheetcam plasmaC file that is in the sheetcam drop down.

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01 Jun 2021 09:29 #210870 by rodw

I see your comp file am I suppose to add that to my config file directory?


It does not really matter as it will install from any folder but it would be best to keep it all together

Well will have to wait on this ohmic part cause I am running a job that is a little bigger than my 2 inch test circles I was doing a couple of days ago and it looks like the THC is not working it’s not moving up or down. I see the voltage marking on the GUI and I am using the latest sheetcam plasmaC file that is in the sheetcam drop down.


You do have the THC enabled in the GUI don't you?

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