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Author Topic: 2 Axis Dispaly w Encoders  (Read 2984 times)

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Offline olf20

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Re: 2 Axis Dispaly w Encoders
« Reply #10 on: September 07, 2017, 07:17:57 PM »
I emailed them back to confirm the mounting and
signal (I hope). I told them that I had double shaft
steppers.
Waiting
olf20 / Bob
Mach3, Atlas Knee Mill, 4th Axis, VcarvePro, ESS, Super PID.
Been Heating with corn since 1998
Re: 2 Axis Dispaly w Encoders
« Reply #11 on: September 08, 2017, 05:44:35 AM »
Let us know how things go.
Those slots are superb. I can hit em for as much time as I want. And I don't need to worry if I fall short of free chips. I like it a lot!

Offline olf20

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Re: 2 Axis Dispaly w Encoders
« Reply #12 on: September 08, 2017, 02:40:09 PM »
Latest reply. Maybe someone can make some
sense out of this?
Mach3, Atlas Knee Mill, 4th Axis, VcarvePro, ESS, Super PID.
Been Heating with corn since 1998

Offline Tweakie.CNC

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Re: 2 Axis Dispaly w Encoders
« Reply #13 on: September 09, 2017, 01:48:07 AM »
Does this help ?

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.

Offline olf20

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Re: 2 Axis Dispaly w Encoders
« Reply #14 on: September 09, 2017, 07:32:57 AM »
Yes it does! How did you do that?
Thanks
olf20 / Bob
Mach3, Atlas Knee Mill, 4th Axis, VcarvePro, ESS, Super PID.
Been Heating with corn since 1998

Offline olf20

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Re: 2 Axis Dispaly w Encoders
« Reply #15 on: October 08, 2017, 07:31:55 AM »
Here is another encoder / display. This one will keep
the reading when powered down. I'm doing a lot of
two sided machining. This would help in making sure,
and resetting the machine for proper alignment.
http://www.ebay.com/itm/1-ft-Length-Wheel-Encoder-Support-Counter-Grating-0-1-ft-Display-Meter/322371257324?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649
Also the price is right.
olf20 / Bob
Mach3, Atlas Knee Mill, 4th Axis, VcarvePro, ESS, Super PID.
Been Heating with corn since 1998
Re: 2 Axis Dispaly w Encoders
« Reply #16 on: October 08, 2017, 11:18:29 PM »
Hi,
the resolution of the display in the link is 0.1 foot and an accuracy of 20 thou? Does that sound right?

Craig
My wife left with my best friend...
     and I miss him!

Offline olf20

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Re: 2 Axis Dispaly w Encoders
« Reply #17 on: October 09, 2017, 06:57:11 AM »
Here is the spec on the encoder. The unit can be calibrated
to users needs, according to the seller.
Encoder:

Resolution: 600 p/r
Power source: 5-24 VDC
Shaft: 6mm Dia, 15mm Length
Size: 40mm Dia, 37mm Length
Output : A B  2 phase output rectangular orthogonal pulse circuit,
the output for the NPN open collector output type
Maximum mechanical speed: 6000 R / min
response frequency: 0-20KHz
Cable length: 1.2 meter 4-core shielded cable
olf20 / Bob
Vcc: + power, V0: ground ,Connection color is clearly marked on nameplate ,
A B 2 phase output must not be directly connected with VCC, otherwise,
will burn the output triode.
« Last Edit: October 09, 2017, 07:05:16 AM by olf20 »
Mach3, Atlas Knee Mill, 4th Axis, VcarvePro, ESS, Super PID.
Been Heating with corn since 1998
Re: 2 Axis Dispaly w Encoders
« Reply #18 on: October 13, 2017, 03:03:20 AM »
Hi,
how does using this rotary encoder differ from using linear scales? Worse this encoder is differential, when you turn it on it will have no
idea where it is until you reference it.

From your description of what you wanted you'll need an absolute multi turn encoder or absolute linear scales. Both are available but prices start
at $700 not $70.

Craig
My wife left with my best friend...
     and I miss him!

Offline RICH

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Re: 2 Axis Dispaly w Encoders
« Reply #19 on: October 13, 2017, 05:31:20 AM »
Bob,

I tend to agree with Graig and you may want to see what is available in linear scales.
I have scales from Shooting Star Technologies on my mill for over 10 years and they still work great.
Not glass scales but they serve the purpose.

Also consider some kits as you just solder components to a board and then choose what you'll use as an input.
Friend uses it a lathe and it is cheaper to do than Star or others that provide hobbiest scales.

I still use both my mills manually so the linear scales are like mandatory.
You can save money by using Mach to be a measuring device for locations and if some screen work was done
you can do as you want for info and save money. BTW, it's a PITA to use a stepper'd driven cnc manually as there is no
feel to the mill.  I know it defeats your purpose of not having to turn the PC on, but, turning on the pc or turning on the scales
are not much different from a lazy point of view.

Just something to think about.

RICH