Hacklinger Gauge

[HoGo]

Once again I'd suggest simple setup a'la ted Sinoski:

http://www.mandolincafe.com/forum/sh...l=1#post209972

Or for those who would prefer something they can buy, read this quite old thread on Maestronet:

http://www.maestronet.com/forum/inde...owtopic=317992

[lsnyman]

I know this is an old thread but wanted to provide a solution.
I have developed this electronic thickness gauge. Also no fishing for your ball after each measurement.
Contact me ifyou have an interest.
Liam

http://www.youtube.com/watch?v=UNBsi...layer_embedded

[amowry]

Pretty sweet! Nice work. What's the maximum thickness it can measure, and does the accuracy decrease with increased thickness?

[lsnyman]

Thanks.
I have limited it to 7.5mm, which is purely a limitation of the magnet being able to hold the weight. I can increase it if neccessary but you may have told the ball in place. Accuracy does not decrease with distance except for the human factor.
Thanks

[fscotte]

Duuuuuuude. Please tell me this is real? That is sweet. I just may have to get that.

[j. condino]

!!!!


j.
www.condino.com

[Dale Ludewig]

I agree with James, I imagine. Holy Kripes.

[Chris Oliver]

I know this is an old thread but wanted to provide a solution.
I have developed this electronic thickness gauge. Also no fishing for your ball after each measurement.
Contact me ifyou have an interest.
Liam

http://www.youtube.com/watch?v=UNBsi...layer_embedded

Finally... the Hacklinger has been hacked!!!

[lsnyman]

As I have had a lot of interest i am adding more info to the thread.
The device has a resolution of 2 mils or approx 0.05mm. I choose to rate the accuracy at 0.1mm as we are dealing with magnetics and sometimes the measured value may be on the border and toggle between for example 2.25mm and 2.3mm.

<Removed by Moderator, please limit selling to the classifieds. They are free. You can place a link here to a web page, that is acceptable>

Thanks
Liam

[Chris Oliver]

Liam,

Does this have to be recalibrated for other wood species (mostly just differing density)? Spruce vs. cedar vs. redwood vs. maple, etc., etc.?

If so, is this easy to calibrate?

[fscotte]

Can it measure in inches? I like to see grads as .160" as an example.

[lsnyman]

Hi Chris
No, not at all. The unit will measure the thickness of any non- ferrous material, wood, plastic, aluminum, brass, paper etc.
The calibration is done in the software at manufacture and no calibration after that is needed.

[lsnyman]

Yes, it measures in both mils which is 1000th of an inch and metric mm. The resolution is 2 mil which is approx 0.05mm. Your example of 0.160" would read as 160 mils.

[fscotte]

Nice. I'd like for someone to get this unit and then give us a review.

[multidon]

Is the ball small enough to fit into the F holes of a mandolin? it looks kind of big in the pictures.

[lsnyman]

The ball is 5/8". I can also make is work with a disc if required.

[Michael Lewis]

Would a smaller ball work?

[lsnyman]

yes, I can make it with a 1/2" ball, just has to be calibrated that way. What size ball will be good for you?

[lsnyman]

UPDATE !!
I have improved the probe to increase the range. It now has an option to read up to 14mm suspended and even to 20mm with the probe below the ball.

Her is a video showing the ball inside a guitar jumping braces. Please excuse the old ugly guitar.

http://www.youtube.com/watch?v=NODOo...ature=youtu.be