Start project with 6 axis Nema 17 stepper motors

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noqui
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17 Feb 2024 08:26 #293589 by noqui

Start project with 6 axis Nema 17 stepper motors was created by noqui

How can i start a project with 6 axis stepper motors, through the parrallel port? I use the DB25 port and the DB25-1205 board
Each Stepper motor is Nema 17 with 6 DM420A driver controllers

Thanks a lot.

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tommylight
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17 Feb 2024 08:53 #293594 by tommylight

Replied by tommylight on topic Start project with 6 axis Nema 17 stepper motors

Get the LinuxCNC ISO from the downloads page, write it to USB, boot the PC from it, install it to HDD, reboot.
Make a config for XYZA, wire drives to BOB (beware it does require 2 of 5V power supplies if you need isolation, only one if no isolation is required), see if stuff moves around.
Another thing to be aware of, the BOB uses really slow optocouplers, so might need to use a very slow base period, at least 100000.

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noqui
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17 Feb 2024 12:12 #293608 by noqui

Replied by noqui on topic Start project with 6 axis Nema 17 stepper motors

thanks tommylight for your quick answer, Few questions to understand you. 1) Why i must re install Linuxcnc if i have already install it? 2) What do you mean with BOB? Is it the B25-1205? 3) XYZA lets me control B & C stepper motors?

Many thanks tommy

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noqui
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17 Feb 2024 12:57 #293610 by noqui

Replied by noqui on topic Start project with 6 axis Nema 17 stepper motors

Sorry, i understood you that BOB is B25-1204, so forget about number 2 question. Number 3 question means can i add B & C steppers motors in XYZA? 4) as i need to use many pins, i think i must use 2 of 5v isolated. What do you think?
Many thanks

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Aciera
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17 Feb 2024 13:10 #293617 by Aciera

Replied by Aciera on topic Start project with 6 axis Nema 17 stepper motors

The installation description was added for completeness since it was not clear that you already have LinuxCNC installed, so disregard.

Use the PNCconf tool to create a configuration for a XYZA machine as it does not let you create a 6 axis configuration. You then need to modify the created hal and ini files to change the XYZA to XYZABC or whatever you need.

The following user(s) said Thank You: tommylight

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Start project with 6 axis Nema 17 stepper motors

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