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Messages - John40131

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41
General Mach Discussion / Re: First startup motors not running
« on: October 17, 2017, 12:51:20 PM »
Hi sorry for another post,

Just had another go and find the following.
After setting Enable 1 to "Active Low" i.e Tick
Direction Low i.e Tick or no Tick no difference
In Motor Tuning if I set :-
Step Pulse to 5 micro Second.
Dir to 1 micro second

I got some action the motor wasn't moving just pulsing if I tried to turn it seemed to turn a little bit but just pulsing or Jerking

So at least I have some action my thoughts are Micro Step settings are wrong

Regards John

42
General Mach Discussion / Re: First startup motors not running
« on: October 17, 2017, 12:15:08 PM »
Hi Craig,

Got power supply up and running, tried all you suggest still no movement, DIR voltage toggles from 0v to 5v when "X" axis is changed direction on output of TB6600, my scope is only basic but there is a pules and the pulses ramp from 5v downwards on output of BoB to TB6600

I have tried my motors ("X" and "A" cloned with an Arduino and these motors work fine albeit  had a bit of a problem with skipping using at first, but trial and error using CNC Shioeld and DRV8825 drivers at least got it running reasonably smoothly albeit frying a Uno board and a couple of DRV8825's, I used Universal G-Code Sender and I am using Nema 17 motors think on my first impression my setup is underpowered, But, will upgrade once get working

My other thought was Stepper Driver switches on the TB6600 SW1 - SW6 I have set OFF/ON/OFF/ON/ON/OFF  i.e 8 micro step/1600 pulse per rev..Current 1.5amp PK 1.7 Amp.

When I tried running with Arduino, the Nema 17 motors would only run with CNC Shield set to no jumpers to M01 jumper  i.e Full step and half step higher wouldn't run not sure if that is relevant but  if I increased by putting MO2 and MO3 jumpers in motor would not run.

The other thing I was going to try was using an Arduino to drive the TB6600 that could confirm if SW1 to 6 are correct, there are lots of YouTube ideas but my end goal is to use Mach3.

I would be most grateful for any help from the results I have so far.

I also enc a pic of pulses on scope.

Regards John

43
General Mach Discussion / Re: First startup motors not running
« on: October 11, 2017, 05:51:09 AM »
Hi Joeaverage,

I am waiting for 24 volt PSU I ordered from e-bay to arrive prob be next Monday, got a few things I have been looking at:-
1:- The BOB board I have uses MM74HC245A  Octal 3-STATE Transceiver I think you get out what you put in.
2:  Seen this BOB board from Twovolt which uses 74HC14 which are Schmitt triggers, that will clean the incoming pulse, can get all bits easily just PTH Printed circuit board to get but got to copy schematic on Eagle to get gerber files to make, not sure if make a difference but maybe worth a try if get bogged down.

I will post as soon as I have anymore news thanks for all the help.

Regards John

44
General Mach Discussion / Re: First startup motors not running
« on: October 09, 2017, 02:01:13 PM »
Ohhh, one further on this file it shows device manager I should NOT have ! or ? , I have a question mark in Mach3 Driver...not sure of relevance.

John

45
General Mach Discussion / Re: First startup motors not running
« on: October 09, 2017, 01:56:43 PM »
Hi,

it suppose to be ECG-SAVEBASE but put PDF file of board etc.

Regards John

46
General Mach Discussion / Re: First startup motors not running
« on: October 09, 2017, 08:12:48 AM »
Thanks for help.
Joeaverage...My machine is home built from an older MB which has a parallel port on board :-

MB Asus M2N68-AM Plus
Memory 2gb Corsair XMS DDR2
CPU AMD Athlon 7750 Dual Core 2.71ghz
Hard Drive SSD 128gb
OS Windows 7 32bit service pack 1
Checking Bios
Parallel port Settings
Address 378
IRQ (IRQ7)
Set to Normal, other options are EPP,ECP and EPP + ECP

I did a Driver test, strange would only work under administrator, posted pics.

Tweakie
I need to replace this power supply which was sent in error before I go any further only PSU I got was a 24v 3.2amp which I tried but could smell something getting hot so turned off.

Regards John

47
General Mach Discussion / Re: First startup motors not running
« on: October 08, 2017, 02:18:11 PM »
I read another thread about motors not running and was asking about parallel port, mine is on board was 0x378, I tried to put a Dynamode PCI Parallel card I have but cant find drivers for that so binned that idea.

John

48
General Mach Discussion / Re: First startup motors not running
« on: October 08, 2017, 11:18:10 AM »
Hi thanks for quick reply, sorry to be a pain.
I take you mean the Mach3mill.xml file I have renamed.

Also looked at pulses from Parallel port and they are very sharp pulses and the BOB seems to give same, thought it would have been more like a square wave.

Regards John


49
General Mach Discussion / Re: First startup motors not running
« on: October 08, 2017, 09:53:08 AM »
Made error on Parallel pins should read 2,3 X axis 4,5 Y Axis 6,7 Z Axis.

50
General Mach Discussion / First startup motors not running
« on: October 08, 2017, 09:50:20 AM »
Hi, Finally got to startup but no motors running, I have tried all the suggested info from machsupport but no joy, my first thought was the Stepper motor PSU I got from ebay was 24volts 15amps BUT it wasn't after checking realized they sent me a 12volt 30amp OK but should still have worked, the steppers Drivers are TB6600 and BOB is an ECG-Savebase, first thought was BOB PCGND needs connecting to motor PSU GND but then saw schematic showing opto-coupled inside TB6600 so +5V goes to all +ve on TB6600 and connections from BOB Pulse Dir go to -ve of TB6600.
I then put a scope on BOB output connections and jogged X,Y,Z I did have some signals on PULSE output a train of about 10 pulses then a couple of second gap and again then same then a gap of about 10 seconds and again pulses high varied from 5V to about 2v, the signal on DIR went from 0v to 5v when jogging from X Left to X right and same on all others, so should I be able to see a pulsed signal from these PULSE output, my scope connection was from PC 5V connection and one of the output connections.
Checked Jog which is 50%
Parallel pins are 2,3 X axis 3,4 Y axis 5,6 Z axis
Also tried Enable active Low/High which I have on pin 14 no diffference.

Grateful for any help.

Regards John

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