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Jet Bike
"Turboshaft". Thats the term I was looking for.
21-2-2018 at 14:41
by: Twospoons
Jet Bike
The other way is to build a turbine based on a used truck exhaust turbo - plenty of internet resourc ...
21-2-2018 at 13:28
by: Twospoons
Slow high torque electric motors for stirrer?
I still find it surprising that one motor runs but another does not, with the same driver circuit. T ...
13-2-2018 at 13:14
by: Twospoons
Slow high torque electric motors for stirrer?
Pretty much any digital meter should be capable of 0.1 ohm resolution, on a 100 ohm fullscale settin ...
11-2-2018 at 15:32
by: Twospoons
Slow high torque electric motors for stirrer?
You really need to get a better meter. Or possibly replace the battery in your current one?

You ...
9-2-2018 at 17:12
by: Twospoons
Slow high torque electric motors for stirrer?
If the motor is locked but not rotating I'd guess one phase is not connected properly.
9-2-2018 at 13:22
by: Twospoons
Slow high torque electric motors for stirrer?
Given the price of that module, it is entirely possible they don't test at the factory - just replac ...
8-2-2018 at 14:56
by: Twospoons
Please replace your passwords-
Given that most people have a vocabulary of about 5000 words they use regularly, choosing four words ...
8-2-2018 at 12:27
by: Twospoons
Religion thought as science
[url=https://www.washingtonpost.com/news/acts-of-faith/wp/2018/02/06/televangelist-suggests-alternat ...
7-2-2018 at 16:03
by: Twospoons
Slow high torque electric motors for stirrer?
Certainly starting to look like its the driver thats busted. Odd - those things are usually fairly ...
6-2-2018 at 17:13
by: Twospoons
Slow high torque electric motors for stirrer?
Try disconnecting ENA. It may work backwards ie no volts = on and 5V = off.
4-2-2018 at 16:27
by: Twospoons
Suggestions for Non-volatile, non-Conductive Liquid for Cooling Electronics
In my opinion, total immersion of a PC for liquid cooling is unnecessary, risky, and possibly counte ...
4-2-2018 at 13:31
by: Twospoons
Slow high torque electric motors for stirrer?
I would set the dip switches thusly:
s1,s2, : ON , s3 : OFF -> put driver in single step ...
4-2-2018 at 13:02
by: Twospoons
Heating Element for DIY Hotplate
I have a single element version of this: [url=http://www.kmart.com.au/webapp/wcs/stores/servlet/Prod ...
4-2-2018 at 12:44
by: Twospoons
Slow high torque electric motors for stirrer?
So, looking at that I can see 3 optocouplers, and associated input resistors and protection. So yo ...
3-2-2018 at 21:11
by: Twospoons
Slow high torque electric motors for stirrer?
Hey, sorry about the trolling comment - now I know where you are coming from I can understand a bit ...
3-2-2018 at 17:17
by: Twospoons
Slow high torque electric motors for stirrer?
There also appears to be a red wire from pin 2 to ground. And blue + green connecting pin 6 to groun ...
3-2-2018 at 01:27
by: Twospoons
Slow high torque electric motors for stirrer?
Looks like you have pin 3 connected to ground (yellow wire) and to the end of the cap on pin 5 (gre ...
1-2-2018 at 20:55
by: Twospoons
Slow high torque electric motors for stirrer?
what sort of test gear do you have? Do you have a meter that reads frequency? If not you could check ...
1-2-2018 at 14:26
by: Twospoons
Slow high torque electric motors for stirrer?
Things like [url=https://www.radioshack.com/collections/resistors/products/500-piece-1-4-watt-carbon ...
1-2-2018 at 00:57
by: Twospoons
Slow high torque electric motors for stirrer?
That looks perfect. Now you just need to work out appropriate component values. For the series res ...
31-1-2018 at 18:32
by: Twospoons
Slow high torque electric motors for stirrer?
Once again the 555 diagram is not quite right. You are showing a direct connection from pin 4 to pin ...
31-1-2018 at 14:24
by: Twospoons
Slow high torque electric motors for stirrer?
Every time you redraw the 555 timer it seems to be different - and not quite right.
Refer to this: ...
30-1-2018 at 12:19
by: Twospoons
Growing a CuSO4 crystal using a "hydrothermal" process
At the top, and in fact most of the way down, its 34C. Right at the bottom, on top of the bulk CuSO4 ...
22-1-2018 at 17:39
by: Twospoons
new way of PCB via plating
[rquote=504421&tid=78387&author=RogueRose] I'm confused as to why the holed need plated, do ...
21-1-2018 at 14:15
by: Twospoons
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