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Slow high torque electric motors for stirrer? Try disconnecting ENA. It may work backwards ie no volts = on and 5V = off.
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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 |
Growing a CuSO4 crystal using a "hydrothermal" process Second attempt. This took about a week and a half to grow to this size. It has unfortunately sproute ... |
20-1-2018 at 17:28 by: Twospoons |
Slow high torque electric motors for stirrer? Something like this? I'm guessing, based on the pin labels, that the driver has opt-couplers on the ... |
15-1-2018 at 16:15 by: Twospoons |
[Metalurgy] Homemade steel body armor @joseph6355 Don't listen to the nay-sayers. Have a go.
Its right there are the top of the page ... |
3-1-2018 at 13:52 by: Twospoons |
Anyone else in NZ? Yeah, the cops are pretty reasonable - I had one living next door for years, and my glassware was vi ... |
21-12-2017 at 22:36 by: Twospoons |
center tap for unipolar stepper motor If you wanted to go just a little more sophisticated than a 555, then one of the small Arduino MCU b ... |
21-12-2017 at 14:05 by: Twospoons |
center tap for unipolar stepper motor He's using a current controlled stepper driver chip - 24V wont hurt - just means you can ramp the cu ... |
18-12-2017 at 15:36 by: Twospoons |
Growing a CuSO4 crystal using a "hydrothermal" process I got my heater from china - on Aliexpress. I've bought quite a lot of stuff that way, and only enco ... |
17-12-2017 at 14:01 by: Twospoons |
Growing a CuSO4 crystal using a "hydrothermal" process Yesterday I turned off the heater, as prep for terminating the experiment. This was a mistake - the ... |
16-12-2017 at 19:35 by: Twospoons |
Large Li-ion battery packs, compact jump starters and truth in advertising? I've seen a few ads for those things, and I'm deeply suspicious of the claims. Given the size of the ... |
15-12-2017 at 14:52 by: Twospoons |
Growing a CuSO4 crystal using a "hydrothermal" process The crystal is now ~40mm long. I'd post a pic, but unfortunately my phone turned into a brick yester ... |
11-12-2017 at 20:08 by: Twospoons |
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