[Michael82]

It is a 3 axis machine ....and yes I do have a multimeter...what do I check

What do I set the multimeter on and where on the bob do I check the moto??

[john-100]

if your not using the 4th axis

this is one possible way of using the "clock" signal from the printer port pin 2 assuming the BOB schematic is correct

Attachment 431266




looking at the schematic of the BOB showing the motor connector

Attachment 431268

if the schematic is correct


with your multimeter set to continuity / low ohm range

you should find one of the "moto " connector pins is connected to the BOB ground / - 24V supply

the second pin goes to Printer Port pin 1 and one of the 330 ohm resistors in the resistor network

Attachment 431270



if the moto connector is as shown

then you will have +5V connected via 330 ohm resistor on the BOB
to the LED within the opto-isolator on the relay board and it's 4700 ohm resistor ( if I have read the value off the photo correctly) then to ground / 0V

Attachment 431276


John

[Michael82]

if your not using the 4th axis

this is one possible way of using the "clock" signal from the printer port pin 2 assuming the BOB schematic is correct

Attachment 431266




looking at the schematic of the BOB showing the motor connector

Attachment 431268

if the schematic is correct


with your multimeter set to continuity / low ohm range

you should find one of the "moto " connector pins is connected to the BOB ground / - 24V supply

the second pin goes to Printer Port pin 1 and one of the 330 ohm resistors in the resistor network

Attachment 431270



if the moto connector is as shown

then you will have +5V connected via 330 ohm resistor on the BOB
to the LED within the opto-isolator on the relay board and it's 4700 ohm resistor ( if I have read the value off the photo correctly) then to ground / 0V

Attachment 431276


John

Would this bob help

[john-100]

Yes
That BOB will be easier with the screw terminals to connect to
Attachment 431332

I would still use the larger 1XHCEL Board relay to keep the mains away from the BOB !!!!

Attachment 431334

PS

2nd BOB to 1XHCEL relay board



Attachment 431336

John

[Michael82]

Yes
That BOB will be easier with the screw terminals to connect to
Attachment 431332

I would still use the larger 1XHCEL Board relay to keep the mains away from the BOB !!!!

Attachment 431334

PS

2nd BOB to 1XHCEL relay board



Attachment 431336

John

Hey John I ordered the 1 relay switch it will be here in a week or so

[john-100]

have you connected one axis to the BOB or all three?


the 6th photo in post 3 shows a 3 pin connector on your stepper driver

so you just step direction and common - not sure if its 0V or +5V *** update see PS its +5V




do you have a cable with the original 5 pin connector that plug into the original BOB ?


if the 3 wires connected to the centre 3 connections the common was the BOB's 0V
assuming the diagram in post 18 is correct


have you re assigned the printer port pins 2 to 9 in mach3's pins and ports ?

the step & direction pin assignment is different for the 2 BOB's !!!!



John

PS
TX14207 step & direction connections


Attachment 431476

TX14207
Attachment 431478

[Michael82]

have you connected one axis to the BOB or all three?


the 6th photo in post 3 shows a 3 pin connector on your stepper driver

so you just step direction and common - not sure if its 0V or +5V *** update see PS its +5V




do you have a cable with the original 5 pin connector that plug into the original BOB ?


if the 3 wires connected to the centre 3 connections the common was the BOB's 0V
assuming the diagram in post 18 is correct


have you re assigned the printer port pins 2 to 9 in mach3's pins and ports ?

the step & direction pin assignment is different for the 2 BOB's !!!!



John

PS
TX14207 step & direction connections


Attachment 431476

TX14207
Attachment 431478

I got all 3 boards connected there is a 3 pin plug on the driver side and a 4 pin on the bob side , I had a few problems getting them working but they all work on the new 5 axis bob . I was gonna ask what do I need for a manual pulse generator to work with this setup??

[john-100]

" what do I need for a manual pulse generator to work with this setup ? "

If your talking about a MPG like this

Attachment 431736

which contains a rotory quadrature encoder
and switches to select
1 of 6 axis
1 of 3 step size
E stop

for this type of simple MPG you need a second parallel printerport or a USB / Ethernet control board emulating a second printer port


John

PS
circuit of MPG
Attachment 431740

[Michael82]

" what do I need for a manual pulse generator to work with this setup ? "

If your talking about a MPG like this

Attachment 431736

which contains a rotory quadrature encoder
and switches to select
1 of 6 axis
1 of 3 step size
E stop

for this type of simple MPG you need a second parallel printerport or a USB / Ethernet control board emulating a second printer port


John

PS
circuit of MPG
Attachment 431740

Yes that is exactly what I'm talking about ... thanks john u have been a big help I will let you know when I fr et the relay switch in and hooked up

[Michael82]

" what do I need for a manual pulse generator to work with this setup ? "

If your talking about a MPG like this

Attachment 431736

which contains a rotory quadrature encoder
and switches to select
1 of 6 axis
1 of 3 step size
E stop

for this type of simple MPG you need a second parallel printerport or a USB / Ethernet control board emulating a second printer port


John

PS
circuit of MPG
Attachment 431740

Hey john I know this is a stupid question but I dont know enough about electronics to know I have a firewire(ieee1394) port on the back of my hp desktop that mach3 and my cnc controller box is running from . My question is can I use the firewire port for the manual pulse generator like the one in the picture you posted or is this port for something else

[john-100]

with a breakout board like this that has a USB connection for a 5V supply connection - not data !!!!
Attachment 431836

you either need a PC with 2 parallel printer ports
or a motion controller like a smooth stepper connected via a USB port or ethernet port
that emulates 2 printerports

I can't think of a control using a fire wire


As I am off to Portugal early tomorrow (sunday)

to see Postmodern Jukebox

Attachment 431838

https://www.youtube.com/watch?v=EV3NZUY_dr8

https://www.youtube.com/watch?v=UngXu2zwF9E

Its going to be friday before I can reply again as I'm only taking a dumb phone

John

[Michael82]

with a breakout board like this that has a USB connection for a 5V supply connection - not data !!!!
Attachment 431836

you either need a PC with 2 parallel printer ports
or a motion controller like a smooth stepper connected via a USB port or ethernet port
that emulates 2 printerports

I can't think of a control using a fire wire


As I am off to Portugal early tomorrow (sunday)

to see Postmodern Jukebox

Attachment 431838

https://www.youtube.com/watch?v=EV3NZUY_dr8

https://www.youtube.com/watch?v=UngXu2zwF9E

Its going to be friday before I can reply again as I'm only taking a dumb phone

John

Have fun look forward to hearing from u then

[routalot]

I can understand the satisfaction that will be a part of completing this process and achieving a goal.On the other hand it does seem like a lot of work to avoid the need to flip a switch and get cutting.If the anticipated projects include something like producing lithophanes and leaving the machine unattended for hours before it switches itself off,it will be totally justified.If the planned projects are limited to cutting out wing ribs for model aircraft and a cutting sequence that last maybe four minutes it gets harder to justify the time away from the activity that the machine was bought for unless machine modification is the new primary interest.

[Michael82]

Hey john I know this is a stupid question but I dont know enough about electronics to know I have a firewire(ieee1394) port on the back of my hp desktop that mach3 and my cnc controller box is running from . My question is can I use the firewire port for the manual pulse generator like the one in the picture you posted or is this port for something else

Hey John am I gonna have to download a plugin for mach3 for this manual pulse genarator ? https://www.ebay.com/itm/CNC-Handwhe...k/173086400502

[Michael82]

Hey John am I gonna have to download a plugin for mach3 for this manual pulse genarator ? https://www.ebay.com/itm/CNC-Handwhe...k/173086400502

Hey john how was the show??? Hope all is well I got the relay in and I'm about ready to start wiring it up .

[john-100]

Hi Michael82

A great time had by all

The show and to seeing Sara Niemietz singing live was great
going by the response of the Portugese audiance I expect PMJ will return to Portugal

youtube clip with Sara from august
https://www.youtube.com/watch?v=9sgrivF7keY



The parts of Portugal we visited was nice as was the Portugese people


Being the front seat passenger of a taxi being driven on the wrong side of the road was unnerving

( from my point of view the world is wrong driving on the right ! )


We all ready have tickets for PMJ in september 2020 at the Royal Liverpool Philharmonic , which is closer to home !

https://www.liverpoolphil.com/




How are you connecting the MPG via a second printerport ?

something likes this ?

https://cnc4pc.com/Tech_Docs/guide_f..._over_LPT2.htm

John

[Michael82]

Hi Michael82

A great time had by all

The show and to seeing Sara Niemietz singing live was great
going by the response of the Portugese audiance I expect PMJ will return to Portugal

youtube clip with Sara from august
https://www.youtube.com/watch?v=9sgrivF7keY



The parts of Portugal we visited was nice as was the Portugese people


Being the front seat passenger of a taxi being driven on the wrong side of the road was unnerving

( from my point of view the world is wrong driving on the right ! )


We all ready have tickets for PMJ in september 2020 at the Royal Liverpool Philharmonic , which is closer to home !

https://www.liverpoolphil.com/




How are you connecting the MPG via a second printerport ?

something likes this ?

https://cnc4pc.com/Tech_Docs/guide_f..._over_LPT2.htm

John

Hey john yes I'm gonna use a 2nd printer port I have installed it already and i have wired the mpg according to the instructions...they r different than what was in the picture from that post u linked in the comment is that ok??

[Michael82]

Well that helped alot john thanks I will get started on all this I have alot to do

[john-100]

As I don't know what instructions you are looking at

I suspect you wil have a wiring diagram for the MPG showing the Incremental encoder and the various switches connected to a 25 pin D-type connector

Attachment 432674



you will need either an adaptor cable or interface for the

connections between MPG and printer port

https://cnc4pc.com/Tech_Docs/guide_f..._over_LPT2.htm


the switches will connect an input to your printerport 2 to ground

the input functions being assigned in pins and ports


the Incremental encoder will need a +5V supply so not all MPG wires go to the 2nd printer port !

the ground and the A & B outputs go to the printer port input

I'll need to check but I think CNC4PC make an interface that will help to protect the incremental encoder

John
PS

GUIDE FOR SETTING UP MPG2/3/4 OVER LPT2 USING MACH3 makes ref to C22

https://cnc4pc.com/Tech_Docs/guide_f..._over_LPT2.htm



C22 - Pendant Interface Card

https://www.cnc4pc.com/c22-pendant-interface-card.html

https://www.cnc4pc.com/pub/media/pro...ser_manual.pdf

[Michael82]

As I don't know what instructions you are looking at

I suspect you wil have a wiring diagram for the MPG showing the Incremental encoder and the various switches connected to a 25 pin D-type connector

Attachment 432674



you will need either an adaptor cable or interface for the

connections between MPG and printer port

https://cnc4pc.com/Tech_Docs/guide_f..._over_LPT2.htm


the switches will connect an input to your printerport 2 to ground

the input functions being assigned in pins and ports


the Incremental encoder will need a +5V supply so not all MPG wires go to the 2nd printer port !

the ground and the A & B outputs go to the printer port input

I'll need to check but I think CNC4PC make an interface that will help to protect the incremental encoder

John
PS

GUIDE FOR SETTING UP MPG2/3/4 OVER LPT2 USING MACH3 makes ref to C22

https://cnc4pc.com/Tech_Docs/guide_f..._over_LPT2.htm



C22 - Pendant Interface Card

https://www.cnc4pc.com/c22-pendant-interface-card.html

https://www.cnc4pc.com/pub/media/pro...ser_manual.pdf

This is what came with the manual pulse generator and ofcourse I cant read Chinese so I compared the front ( the pic in english) to the back the one in Chinese. This is what I had to go off of does it look right?