Messages

101

General Mach Discussion / Re: Looking for good DIY controller kit supplier

« on: December 03, 2020, 02:48:22 AM »

Wow :O Are those switches made from outback gold nuggets?

https://www.aliexpress.com/item/4000184386889.html?aff_platform=portals-tool&aff_trace_key=0036ea43b7c74e19a3a4f66000fae4eb-1606981590519-06439-_dVh6yw5&tmLog=new_Detail

102

General Mach Discussion / Re: Definitive Tool Auto Zero Script

« on: December 03, 2020, 12:22:05 AM »

I don't think that you will ever find definitive auto tool zero script.
There are many scripts around there. As you wrote some better than others.
I personally use scripts from BigTex toolsetter screen set, modified a little bit.
Essentially for zeroing there are 3 scripts: Tool Zero, Initial Setup and Zero Tool Setup.

103

General Mach Discussion / Re: axis calibration, steps per unit are decimal, need help

« on: December 02, 2020, 03:06:56 AM »

Mach3 will happily work with decimal numbers in steps per.
I have 42.61 steps per mm on my belt driven machine on both X and Y axes.

When calibrating your steps per, use as long as possible travels of your axes.

104

General Mach Discussion / Re: Looking for good DIY controller kit supplier

« on: December 01, 2020, 04:06:06 AM »

Well, I use this BOB for years without any glitch.
We can widen this discussion on "are parallel port electronic components capable of driving opto couplers", but please don't do it.

My first BOB was without any buffering, LPT pins directly connected to optos in motor drivers and switches connected directly to LPT pins.
That was in early days me dealing with CNC.

105

General Mach Discussion / Re: Looking for good DIY controller kit supplier

« on: November 30, 2020, 05:27:36 PM »

HC245 are very happy driving TB6600 drivers, I had 0 (zero) problems with them.
Don't look at the voltage levels, optocouplers in TB6600 are not logic gates. LED on the input side of the optocoupler is an "animal" that is fed by current, not voltage. Usually nominal forward voltage for these LEDs is around 1.2 - 1.3V.

106

G-Code, CAD, and CAM discussions / Re: Chinese breakout board BSMCEO4U-PP

« on: November 29, 2020, 03:48:07 PM »

Yuo should do a search on Vectric forum also.
The result: https://forum.vectric.com/viewtopic.php?f=27&t=13825

107

General Mach Discussion / Re: Looking for good DIY controller kit supplier

« on: November 29, 2020, 05:23:55 AM »

@MN300: Actually my TimeZone is GMT+1
To be on topic, PC side supply can be a simple USB cable from computer connected to USB connector on BOB.
The other power supply depends on your motors. I use 24V / 240W MeanWell switching power supply and on PC side 5V 15W also MeanWell power supply. I prefer a separate power supply for 5V side.
Power rating on 24V side is determined by your motors and oversized supply will be happier when it is not loaded 100%

108

G-Code, CAD, and CAM discussions / Re: Chinese breakout board BSMCEO4U-PP

« on: November 28, 2020, 05:45:27 PM »

Are you trying to send G-code directly to the Mach3?

109

VB and the development of wizards / Re: help with simple code

« on: November 28, 2020, 05:11:13 PM »

Do you mean, after referencing machine clicking on Ref All Home, to move to 500, 500?

110

General Mach Discussion / Re: Looking for good DIY controller kit supplier

« on: November 28, 2020, 05:06:32 PM »

I use the same BOB with Mach3 and with Arduino running GRBL (when playing with 2.5W laser module). Just unplug cable from LPT port and plug it to Arduino BOB that I made.