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Re: Running stepper with MPG

 

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Thanks Tom.

An automated saw machine ?it all makes sense ?now. ?So you want a stepper to turn a screw to move a stop. With a DRO read out to set acurate ?lengths. ?

Regards?
Dave


-------- Original message --------
From: "Toma? Kuhl kuhl.tomaz@... [mach1mach2cnc]" <mach1mach2cnc@...>
Date: 11/02/2015 11:45 pm (GMT+00:00)
To: mach1mach2cnc@...
Subject: Re: [mach1mach2cnc] Running stepper with MPG

Hi Dave,

Sorry for my English....

It is a saw machine intended?for cutting aluminum bars with?two?manipulators, one for feeding and position?the?material into?the machine?and the second one is to remove it to the palette. Manual axis will be used to set the?approximate depth of the cut,?perpendicular to the cutting move. First reason, not to use it as an active axis is possibility of errors in programming and the second one is that I'm running out of them. And just one additional is not enough, I need a few of them.

I should use a PLC at the end, but Mach will do it right as many times before.

Thanks,
Tom



2015-02-11 20:09 GMT+01:00 qconvers@... [mach1mach2cnc] <mach1mach2cnc@...>:
?

Hi Tom,
?
Please don't take this the wrong way but in the UK an axe is a thing that cuts wood. As a machine designer I have an image in my head of some crazy wood cutting machine with axes and saw blades and you've run out of axes... the mind boggles. :-)
?
Even reading it as 'axis' I can't imagine why a saw machine would run out of them... could you?relieve my mind from this torment and tell us what the axes on your machine do and what you need an extra one for..??
?
I'm really curious :-)
?
Regards
Dave
?
In a message dated 11/02/2015 18:40:33 GMT Standard Time, mach1mach2cnc@... writes:


Hi Dave,

Interesting device, no doubt?this is use full. According to my knowledge those servos uses PWM signal to control servo.

Thanks.
Tom

2015-02-11 14:11 GMT+01:00 qconvers@... [mach1mach2cnc] <mach1mach2cnc@...>:
?

Servo testers are cheap/simple and you can get some pretty big/powerful servos for models...
?
?
?
Dave K
?
In a message dated 11/02/2015 13:03:01 GMT Standard Time, mach1mach2cnc@... writes:
Hi,

I'm run out of axes on my saw machine and would like to have one additional
axe without the connection to the PC.

Is there a way how to manually drive stepper motor with MPG
(incremental encoder).
The idea on how to do it is pretty simple, but how to convert A/B
signals from MPG to get
direction pulse for stepper driver. Is there any hardware available
regarding this issue?

Any idea is highly appreciated.

Tom


------------------------------------
Posted by: =?UTF-8?Q?Toma=C5=BE_Kuhl?= <kuhl.tomaz@...>
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