Search found 26 matches

by Deal
Fri Jan 19, 2007 1:31 pm
Forum: General Discussion
Topic: Monitoring Water Current direction and speed
Replies: 19
Views: 9469


I would start on the water side of the project and focus down on the information you want to gather. If your 'lagoon' is tidal then you might be able to gather water current data for two or four events per day. If you are looking for 'stream' data then storm air events might be useful for correlatio...
by Deal
Fri Aug 04, 2006 2:27 pm
Forum: General Discussion
Topic: 90vdc pwm controller
Replies: 31
Views: 12120

Most PWM controlled fractional DC brush motors are controlled by potentiometers over gated thyristor boards. These are usually small brush fractional horsepowers like something controlling the speed of your grill rotisseri. Middle Powered 90 VDC motors are usually four wire Field armature types and ...
by Deal
Wed Oct 12, 2005 5:43 pm
Forum: General Discussion
Topic: Cat Heater
Replies: 26
Views: 6693

Re: Cat Heater

Jimandy, congrats on guiding and sharing into 24th year. C. Smith had a good call on electric pet blankets. I am adverse to the insurance ripoff and am sensitive to possibilities where fluffy electric blankets intersect with pets and fire. I recommend a thermoelectric (there are other means of elect...
by Deal
Tue Sep 20, 2005 7:21 pm
Forum: General Discussion
Topic: where does the power go?
Replies: 80
Views: 20546

Re: where does the power go?

Laughed at the nutty cranks about conversion units. Lost in the calculations was stone real life observation that the car slows down when Alt kicks in. I know all the alternator calculations because as energy stingy sailor have upgraded to high amp alt and know the math all the way down to the size ...
by Deal
Fri May 20, 2005 4:12 pm
Forum: General Discussion
Topic: ian's grammactical rules
Replies: 48
Views: 10601

Re: ian's grammactical rules

I have to agree much with Dean on this one. Engineering and electronics are a forward motion communication sport and schematics in universal symbols are just a start. What follows the initial grunts and hand motions of schematics is explanation ,expansion and dialog. Communication skills, written or...
by Deal
Thu May 12, 2005 4:59 pm
Forum: General Discussion
Topic: bandsaw blade welder (old one)
Replies: 26
Views: 7377

Re: bandsaw blade welder (old one)

I realize that the puzzle is to fix this bandsaw welder, but want to add cheap alternative is to Oxy Acc blades with silver solder. Route 1/32 in a piece of wood and clean blade ends and flux and fit them in the routed tracks held by clothes pins or whatever, about three thousands apart (because exp...
by Deal
Tue May 03, 2005 5:47 pm
Forum: General Discussion
Topic: Solar panel sleight of hand
Replies: 67
Views: 14536

Re: Solar panel sleight of hand

Chris Smith has been doing heavy lifting of logic over interesting insular head in sand anti-govt freaks who fantascize that we in USA live in a techno-dome and have all the time in the world to pick and chose among technologies. World economies are exploding with eager workers who will underprice o...
by Deal
Sat Apr 23, 2005 4:17 pm
Forum: General Discussion
Topic: Keyboard Repair
Replies: 7
Views: 1914

Keyboard Repair

My laptop started repeating 'c's on each touch. Having no money to replace $2300 and years software, I disected the keyboard and killed the patient with early exacto knife repairs. I won a bid on Ebay for replacement, and swapped keyboards to restore. The dead keyboard hung like a 'dumb ass' persona...
by Deal
Thu Mar 24, 2005 3:45 pm
Forum: General Discussion
Topic: Weller EC2002M
Replies: 24
Views: 6727

Re: Weller EC2002M

Nice posts on this problem. I have been welding,brazing and soldering for years and think Edd's reply about heat element oxidation is best bet (as it connects to triac performance). Soldering iron tips are a bellows of expansion and contraction and oxidation. They breath a radical language of discon...
by Deal
Fri Feb 25, 2005 4:16 pm
Forum: General Discussion
Topic: Eurotherm blues
Replies: 7
Views: 1917

Re: Eurotherm blues

Whatever Jwax was searching for in in this request for translations gets lost between the sober replies and darker stupidity. This is an international site and most of us americans would be happy to not be shamed by ignorant xenophobic adolescent politics.
by Deal
Mon Jan 03, 2005 4:03 pm
Forum: General Discussion
Topic: Question
Replies: 29
Views: 7410

Re: Question

Hi Opac, I played it back to where you got stupid with your 'batries' and started wishing that the 4.5 volt setting got sent into 'you' brainwaves, and you emerged a voltaged brainiac not capable of proper insertion to where the gods of stupidity were notified and electrons visited your ability to p...
by Deal
Sun Dec 19, 2004 6:40 pm
Forum: General Discussion
Topic: stepper grid software
Replies: 2
Views: 987

stepper grid software

Any open source software to control printer steppers? I have a plasma cutter and want to translate simple outline graphic figures into stepper commands to operate typical printer (old battleship Epson FX-85)stepper motors in X-Y plane. Thanks
by Deal
Thu Dec 16, 2004 4:26 pm
Forum: General Discussion
Topic: The right relay
Replies: 14
Views: 4795

Re: The right relay

I get the secret prize basket of cheze and apples. This guy wrote searching for a relay to carry a half amp fan load at 115 v. Forget all the grainger motor talk (actually you can learn alot from grainger catalog) this is a muffin fan. Yes EDD posted a good write, and we could all profit from some r...
by Deal
Sun Dec 05, 2004 1:20 pm
Forum: General Discussion
Topic: Cleveland Institute of Elec.
Replies: 15
Views: 4081

Re: Cleveland Institute of Elec.

I took CREI courses back in 70's and was impressed that they actually graded and corrected my write-ins. I still have some of their notebooks and my old tests. I had little money and few options back then and was grateful for connection from small town North Carolina to an honest outfit. I don't kno...
by Deal
Fri Nov 26, 2004 2:19 pm
Forum: General Discussion
Topic: Melting Point of Plexiglass?
Replies: 33
Views: 7914

Re: Melting Point of Plexiglass?

You have to be nuts to even think about heat sinking into a flammable material. I have designed and fabricated using all these materials including thermoelectrics. That you cannot "find a piece of aluminum large enough" shouts that your post is freak. Congrats, you wasted time of helpful people. Fre...