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Messages - ZASto

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61
*****VIDEOS***** / Re: Spring greeting from Tokyo
« on: March 29, 2021, 09:57:50 AM »
Yoshii, thank you for beautiful pictures.

Stay safe.

62
Mach4 General Discussion / Re: Planned expansion board
« on: March 29, 2021, 09:55:47 AM »
Steve, that diode is not across relay coil :)

Attached is the schematic how it should be connected.

BTW I don't like the routing, and you have a common ground which voids opto isolation.
Even your board does not look like schematic that you used.
What is the 12pin connector for? Are you going to place wire links from that one to 8pin one to establish connection for series resistors for opto couplers?

63
Mach4 General Discussion / Re: Planned expansion board
« on: March 29, 2021, 05:24:33 AM »
You are still missing diodes across relay coils.
You could kill your LEDs with Back EMF generated when powering off relays.

64
OK, video taken off, seen by one to whom is ment to be seen :)

65
If you don't switch your computer and controller off, there is no need to send machine to zero.
https://youtu.be/2gZfbM8A3qU
In this video you will notice that the run was resumed from line 1.7+ million.

66
Mach4 General Discussion / Re: Planned expansion board
« on: March 28, 2021, 11:34:58 AM »
A diode is mandatory across DC powered relay coil.
SSR, which is low side switching can have internal body diode, but that diode is useless in relay application.

67
For long operations I usually Feed Hold the machine, then press Stop, switch the spindle off and leave the rest switched on (Computer, drives, ...)
One of my files has a tad less of 1.6 million lines.
In the morning just switch on spindle and click Cycle Start :)

68
Mach4 General Discussion / Re: Planned expansion board
« on: March 28, 2021, 07:58:12 AM »
You can always put relays behind SSRs.

69
In case of Mach3, Copy your working .xml file to c:/Mach3 folder and all sub folders under c:/Mach3

70
General Mach Discussion / Re: Z axis is adding steps during cut.
« on: March 27, 2021, 12:38:23 PM »
If earlier all was ok, then check mechanics, i.e. couplings, ...

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