Steam Thistle Cluaran

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dampfspieler
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Re: Steam Thistle Cluaran

Post by dampfspieler » Fri Jan 20, 2023 8:22 pm

Hi,

the speed range of my device goes from 10 to 9999 rpm.

---
Dietrich
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RNoe
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Re: Steam Thistle Cluaran

Post by RNoe » Fri Jan 20, 2023 11:13 pm

Thanks for verifying that.
Mine is probably the same.

Good products, lousy documentation...
RussN
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Lopez Mike
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Re: Steam Thistle Cluaran

Post by Lopez Mike » Sat Jan 21, 2023 4:08 pm

My one cylinder engine can tick over fairly slowly but not, I suspect, below perhaps 20 r.p.m. Without a MUCH larger flywheel, that is!

Mike
If you think you are too small to make a difference, try sleeping with a mosquito.
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dampfspieler
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Re: Steam Thistle Cluaran

Post by dampfspieler » Sat Jan 21, 2023 8:30 pm

Hi,

i received all the parts and checked their function using a breadboard.

RPM_M_001kl.JPG
RPM_M_001kl.JPG (104.37 KiB) Viewed 35711 times

I swung the magnet past the sensor by hand to check the display. That worked.

RPM_M_002kl.JPG
RPM_M_002kl.JPG (102.52 KiB) Viewed 35711 times

Tomorrow I will mount the setup on the lathe to check the accuracy of the gauge.

The 9V battery will be installed in the case. Then there is the switch for the supply voltage of the tachometer.

---
Dietrich
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Re: Steam Thistle Cluaran

Post by RNoe » Sun Jan 22, 2023 2:16 am

Excellent.
¥ou obviously read the instructions and found the correct magnet pole for triggering the display.

It is interesting to me to read the 1 and 2 star reviews on Amazon, and see that the users did not read the instructions!
Always entertaining to me to see those mistakes being made. Unnecessarily.
Glad you are making yours work.
And I look forward to seeing your final product.
RussN
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dampfspieler
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RPM-Display finished

Post by dampfspieler » Sun Feb 19, 2023 9:55 am

Hi Russ,

the RPM-display is mechanically and electrically finished. It was successfully tested for function on my Variospeed drill (OPTIdrill DQ20V).

The overall view
RPM_M_015kl.JPG
RPM_M_015kl.JPG (93.3 KiB) Viewed 35359 times
The arrangement of the components in the housing
RPM_M_003kl.JPG
RPM_M_003kl.JPG (64.48 KiB) Viewed 35359 times
The wiring using a solder terminal strip
RPM_M_013kl.JPG
RPM_M_013kl.JPG (94.11 KiB) Viewed 35359 times
Last edited by dampfspieler on Mon Feb 20, 2023 1:50 am, edited 1 time in total.
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dampfspieler
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Re: Steam Thistle Cluaran

Post by dampfspieler » Sun Feb 19, 2023 9:59 am

Some more pictures.


The waterproof on-off switch on the bottom of the case.
RPM_M_011kl.JPG
RPM_M_011kl.JPG (47.32 KiB) Viewed 35357 times

The watertight cable bushing on the left side of the housing. At the same time, it is the strain relief for the cable to the sensor.
RPM_M_012kl.JPG
RPM_M_012kl.JPG (46.1 KiB) Viewed 35357 times
The function test on the drill
RPM_M_009kl.JPG
RPM_M_009kl.JPG (54.2 KiB) Viewed 35357 times
A short video is available - https://youtu.be/amB2uzrcn6g

Hope it enjoys and is helpful for anybody who wants to built such device. I will use it at all my different engines, which is why I will build universal mounts for the sensor and display.

--
Dietrich
Last edited by dampfspieler on Mon Feb 20, 2023 1:51 am, edited 1 time in total.
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RNoe
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Re: Steam Thistle Cluaran

Post by RNoe » Sun Feb 19, 2023 4:14 pm

Dietrich:
Delighted to see your finished RPM meter!
It looks really well laid out and constructed, as we expect from you.
Hopefully it will meet your needs.

And we have now shared two versions of this device, for others to copy and modify.
Time to steam! (...except for the continued snow outside...)
RussN
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Re: Steam Thistle Cluaran

Post by RNoe » Tue Jul 04, 2023 10:18 pm

After many working hours over the past month, I finally finished the new rough sand-cast bronze 16" diameter x 24 pitch steamboat propeller,
sold to me by Pat Spurlock of Elliott Bay Steam Launch Co, in Portland, Oregon, USA!
It's now a Tylenol afternoon for my shoulders.
Pics attached (of the prop, not my shoulders...)

Next is to make boat performance tests of the old prop, and then repeat for the new prop. 'Should be fun.
RussN
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Re: Steam Thistle Cluaran

Post by PeteThePen1 » Wed Jul 05, 2023 9:32 am

Hi Russ

That looks wonderful. I would never have thought of putting chrome plating on it, but it looks fabulous.

It will be interesting to see your performance data so good luck with the tests. I am intrigued by what one would need to do. No doubt it will be ingenious. I am still surprised that I was able to weigh Frances Anne with bathroom scales after advice from this Forum, so I am anticipating something equally amazing.

Best wishes

Pete
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