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Electronics & IC Programing / Re: Pi PICO DRO/Quill-Knee combiner
« Last post by BillTodd on Today at 02:52:50 PM »
Just adding here that I have been working on a sine-cosine resolver version.

I have a Heidenhain lf482 scale hooked up on s test rig and can reliably detect 10nm movement



Bill
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Member Videos / FIRST RUN! Turning Steam into Power! Wolfgang TS-315 Turbine Generator in Action
« Last post by Jim Dobson on October 29, 2026, 07:35:43 PM »
This is a fun bit of gear, I need to come up with a fix for coupling the shaft from the generator to the shaft of the turbine. Googling I have read that it can be flexible (like the silicone tube it came with but has worn over time) or a solid coupling.
It REALLY winds up! It's a steam hungry beast for sure.....fun? You betcha' it's fun 😊😊

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Member Videos / OKMO N01 Hit & Miss Engine Comes to Life! | First Run
« Last post by Jim Dobson on October 24, 2026, 11:28:37 PM »
This beautiful little four stroke engine takes its inspiration from the NOVO engines of the early 20th century. Its vertical single cylinder layout, cast brass body and exposed mechanical movement make it a fascinating model to watch in action.

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How to's / Re: Adding lights to a circuit controlling a 997 dc motor
« Last post by John Rudd on October 18, 2026, 10:00:11 AM »
Well what a surprise, Google AI says exactly what I said....! (Not an AI fan or advocate...AI crap in =crap out...)

Good to hear it works for you anyway...
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How to's / Re: Adding lights to a circuit controlling a 997 dc motor
« Last post by Dell on October 18, 2026, 09:46:12 AM »
Thanks for the reply but I asked google this morning & google AI said to wire the red leads to live & piggy back the natural ground lead to the outer terminals & it works.
Dell

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How to's / Re: Adding lights to a circuit controlling a 997 dc motor
« Last post by John Rudd on October 18, 2026, 05:01:34 AM »
ok, so in Forward direction one relay is energized, in Reverse the other relay is energized....

To add a direction indication, the simplest is to add a lamp (or led with a resistor ) across the coil of each relay..terminals 85 and 86.

if you go the led route, you will need to add a series resistor of about 1k Ohm..(1000 Ohms, Brown Black Red for the colour code..) With the cathode lead connecting to the 85 pin on the relay. The resistor can go in either led lead.. but the Cathode needs to go to pin 85.
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How to's / Adding lights to a circuit controlling a 997 dc motor
« Last post by Dell on October 17, 2026, 01:40:27 PM »
I am in the process of adding a motor to the spindle on my vertical slide on my Pultra lathe, have a 24 volt power supply,PWM, 2 heavy duty 24 volt relay?s,DPDT switch for forward/reverse but I also want to add lights to show motor direction, green for normal cutting direction, yellow for reverse but not sure where to wire them, I am using a wiring diagram originally posted by daGrouch any help would be much appreciated.
Dell
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Member Videos / Re: My week this week, my workshop videos!
« Last post by hermetic on October 17, 2026, 10:12:56 AM »
Hi folks,
A week of rain and shine, and repairs to everything! we forcibly remove the top from the Westwood battery, top it up with steam iron water and give it a charge, and it returns to life! Keith has cracked a rib so is a bit under the weather, so we revert to light duties, and do some shed repairs, and I fix a compressor with a massive earth fault in more ways than one! VIDEO GOES LIVE AT4PM BST!!
Phil, In damp autumnal East Yorkshire
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Member Videos / Re: My week this week, my workshop videos!
« Last post by hermetic on October 10, 2026, 05:53:41 AM »
Hi folks,


Another mixed week of field work and workshop tinkering. The weather proved better than predicted, but that is not going to last forever, and we are almost finished with field work for the year, and the truth is we have almost finished all that we hoped to achieve this year, and probably some that was spur of the moment, unplanned "lets do that"! It is looking amazing!  Friday we tackled a job that should have been done ages ago! The faithful Westwood has been used for several years with no reverse gear, which makes it really hard to get out of tight spots, and impossible to cut backwards, which it will do! The fix turned out to be much easier than expected! Video will go live at 4PM BST!


Phil, in blustery damp East Yorkshire.


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Member Videos / Re: My week this week, my workshop videos!
« Last post by hermetic on October 03, 2026, 02:51:30 PM »
Hi folks,
Monday was new tyres on the Volvo for MOT Tuesday, so my week started on Wednesday with three days of hard physical slog in front of us clearing an area that has probably about 15 years of bramble growth over the top of mixed garbage and timber! It was a hard slog but the worst is over and all we have to do now is undergrowth removal and chainsawing! We will overcome!
Phil, in sunny and a bit too warm for work East Yorkshire!
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