Questions Regarding Quill DRO / Interface / Auto-summed Z Axis

opsoff1

opsoff1

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Questions to Yuriy but welcome input from all.

I added a quill DRO set up to my mill. It appears to be a Mitutoyo type clone.
I'm ok using it as a stand alone, but it would be really great to have it integrated to the Z axis (auto-sum) on my Touch DRO.

This brings up two questions.

1. Will it talk to my controller. I have the Touch DRO board for iGaging set ups.
The literature with the quill DRO says the following:
The interface is synchronous series
Data: Binary Code 24 bits
Cycle 300ms
4 wires (L to Right)
Power (+)
Data
Clock Pulse
Neg Power (-)

Clock Pulse is 90KHz

The unit runs on an SR-44 battery (1.5v)

2. The port in the DRO head is a Mini USB, all the ports in my Touch DRO are Micro USB.
Can I use a cable that is a Mini to Micro configuration?

Any info would be welcomed.

TIA
 
opsoff1 said:
Questions to Yuriy but welcome input from all.

I added a quill DRO set up to my mill. It appears to be a Mitutoyo type clone.
I'm ok using it as a stand alone, but it would be really great to have it integrated to the Z axis (auto-sum) on my Touch DRO.

This brings up two questions.

1. Will it talk to my controller. I have the Touch DRO board for iGaging set ups.
The literature with the quill DRO says the following:
The interface is synchronous series
Data: Binary Code 24 bits
Cycle 300ms
4 wires (L to Right)
Power (+)
Data
Clock Pulse
Neg Power (-)

Clock Pulse is 90KHz

The unit runs on an SR-44 battery (1.5v)

2. The port in the DRO head is a Mini USB, all the ports in my Touch DRO are Micro USB.
Can I use a cable that is a Mini to Micro configuration?

Any info would be welcomed.

TIA
Click to expand...
iGaging adapters work primarily with iGaging scales.
What you have is very likely a 1.5V BIN6 scale (or some new animal that uses negative power, but I suspect that is just a "lost in translation" thing and it's actually Ground/0V).
The "V2" iGaging adapters can understand BIN6 protocol, but 1.5V is too low for the inputs, and 3.3V supply is too high for the scale you have. You will need to add some sort of level shifter to amplify 1.5V to 3V, and potentially a 1.8V voltage regulator to power the scale

Regards
Yuriy
 
Yuriy,
Thank you for the response - for now that will fall into the "bridge too far" pile. I'll stick with the separate DRO on the quill.
Much appreciated!

Scott
 
Yuriy,
Would this work as a level shifter?
 
Looks like the attachment didn’t load.
It wax a simple circuit with a YX8115 transistor and a 22uH choke
 
Yuriy

Doing more research - I found your Yuriy's Toy's page and the plans for a Level Shifter. (obviously it is for 4 inputs, but I only need one)
I've read it multiple times to really try to comprehend it all - disclaimer - I know enough about electronics to probably recreate this with a 10% chance of melting something...
ETA...Apparently when you really REALLY pay attention, the details were right in front of my face...:rolleyes:

I have some questions:

1. IF I add a battery to the the Level Shifter - should the battery in the DRO unit be removed? Appears to be yes - One or the other, I plan to use a C cell for the 1.5v

2. You noted that the LM339's need 3.3v - am I correct that I can just tap that power from the Vcc outout on the controller board? YES

Is there a way you can illustrate what the connections would be between my quill DRO / Level Shifter & the Touch DRO controller?
I want to be crystal clear...
Here is what I took away from the details in your level shifter build.
For illustration purposes - I'll use the same power jumper layout you had. Top two are 5v, Third is 3.3v and the bottom is 1.5v.
Please confirm that I have this correct: The 4 scale connections on the left of the board will supply the corresponding power as needed and also have the connections for the clock & data. (Connections V+, Data, Clock, Gnd -)
I am using a C cell to provide the 1.5v needed for my quill scale.
RE: the connections to the T-DRO Controller on the bottom right, (I'll be using a Micro USB jumper from the board to the controller)
is it correct that the only pins that are utilized are the clock & data pins?

Confirming that the Quill DRO would connect to the corresponding 1.5v powered input connection on the left side and the 4 pins lower right would go to the W axis inputs on the Touch DRO controller. See above

Lastly - the micro & mini female connectors are 5 pin - looks like the 4th pin is skipped?? I/O is not used

To refresh:
My Quill DRO literature says the following:
Interface is synchronous series
Data: Binary Code 24 bits
Cycle 300ms
4 wires (L to Right)
Power (+)
Data
Clock Pulse (Clock Pulse is 90KHz)
Neg Power (-)

The unit runs on an SR-44 battery (1.5v)

Level Shifter.png


Also - sourced all the components and total build is $38.

TIA

Scott
 
Last edited:
Yuriy,
I edited the post with updated observations.
 
Scott,
Sorry for the late reply. Didn't get notification from this thread for some reason...

You will need to connect the ground (in addition to clock and data pins). One thing to watch out is the polarity of the scale's frame. iGaging scales' frames are grounded. Many 1.5V scales have the frame connected to +1.5V. In that case you will need to isolate the frame from the machine.

Also, if I may ask - if you are spending $38 on this, why not just get a matching iGaging scale? It will be less head ache in the long run, I think.

Regards
Yuriy
 
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