iceng

Thanks for the good vibes man..

123RF talks free but the yearly cost of $300 to $2200 will be sucked from your pocket http://pixlr.com/blog/123rf-acquires-autodesk-pixl...

+1

An intuitive engineer Wow !!!..BTW add an an extra 1/4" separation between the EL wires in the future because the AC EL voltages can run to over 200V

Lots of hours in that and where did you learn using offset wire joining so a single shrink tube is a good isolator and cover ? Kudos on that and your Art !!!

Thanks for your comment...This was a 4 year effort.

Could there be enough burn depth to print roller the high side with ink ?

+1

Nice well detailed ible...So you only supply water and "fish guts" twice a month ?!?!I'v been in hydroponics green houses that never smelled of fish but had some metering system for 4 to 7 liquid ingredients...What say you ?Are you still growing 3 years later ?

Ggom20's idea for three undirectional microphones and a simultaneous recording or uP should locate in 2D space.. Use four to locate sound in 3D volume.

Neat idea in real wood.. Sorry that criminals are so active that you need to hide stuff in the capital city..You probably do not leave your dog at home.. We have great neighbors, two or three dogs and six grand kids in Reno at any one time...

You only need a battery a timer and a buzzer car ignition coil on the bed sheets which contain your sleeping perspiration and thousands of dead conductive skin cells..I used to wire things in / on my teenage bed when a wire fell to touch the bed sheet..I was shocked and to this day remember the sparks jumping about beneath me..My jerking escape movements disconnected the clip cords halting my electrocution and after wards I used a stable platform:)

Only some of the Finalists...

Are the lamps incandescent or LED or what curren per lamp ??

Add that 100 ohm resistor on either side of the LED then touch the leeds together see if it lights..If it does not light, the LED or NPN cold be backward or damaged.

Exactly, in free air the LED is always ON, then when you touch the probes together the LED turns off.. I have submitted two images of the TO-92 NPN Transistor pinouts which agree ! This is a good time to point out the amount of Fake Information that is available out there.. Your pic was not detailed enough to assign curvature of the TO-92...You need solid non-oxidizing nail shaped probes held at a fixed distance apart.A zinc coating will be removed by acidic soil in an hour...Copper comes to mind if a heavy gold plated probe won't do... An Effective probe is how much area is exposed to moisture and where that moisture is important which is the plant root ball..Suffice it to say that soil measuring surface resistance is not helpfulwhen moisture content in root water is your intention..

And how deep..This is a bad ckt for measuring moisture !Better a garage sale moisture meter...

I assume the wires going into the soil are bare wires unlike your picture which shows only insulated red wires...This circuit is a water conductance detector... As water dissolves ionic materials in the ground the resistance between the wires decreases and eventually draws current away from the NPN transistor base which turns off the LED...The circuit is deficient and needs that 100 ohm resistor in series with the LED.. Because you might draw too much current through the LED and damage both LED and NPN...BTW the distance you separate those wires makes a big difference in how wet or dry you detect... And local water or filtered water can affect it too... Stay with one water source...

I am overwhelmed by your creation and saddened that magic is not part of my muggle life...

Good to hear..

Thanks for your nice comment :-)

Put it in Answers instead..I rarely come here.

No we don't !

I calibrated a spectra scope using a quartz mercury arc fluorescent light but knew my glass glasses blocked the dangerous UV-C... HA ha, , , the lenses were plastic ! or poly-carbonate and sun burned my eyes real bad..Spent a horrible night with sand in my eyes, that was what it felt like, and next day rode my bike to a doctors office zigzagging from shadow to shadow..Point is, be careful and shield pump reflow through the quartz water tube in a light proof box where the UV lamp resides away from everything but germs...

Buy a 20 watt princess solder iron or better ask a friend to solder it for you..I would use a dab of epoxy to hold the jack down because you strong arm the plug..

Sorry....................... We get older and more infirm 24/7

How Quiet was it ??

I do not think this Zealand Newbie ever reads his postings, sad...

+1

Voted for you !

Good one, nice output turning a neat idea into a non-magnetic vice...You should post in the metal contest as better then Nu-Metal replacing the washers with Pb washer feet.. I still have not opted for a printer.. What printer would you recommend ?

Excellent work, if you lived closer, II would hire you to help me make my 1" rod by-level rock tumbler :-)

Voted 3X 4 U...

Or here is a wild thought, how about a gear box that engages two gears in reverse and one in forward of a servo rotation using gravity to exchange gears.

How mechanically adept are you..Whenever you reverse the servo it engages a lift the wheel cam..Then in forward the wheel engages the rug in traction.Or a gear train (Lego) slip clutch that only moves the wheel forward :-)

Thanks for responding, Got some outside help.Have a fun Holoween :-)

Thanks for the H-card Penolopy :-)I see where the head goes but do you have any idea how the legs are meant to attach.. The opposed white leg tabs line up with body bottom slots but that brings the red to the front !!??

BOGUS

Downunder has it right..What data do you feed to your PID (Proportional Integral Differential) control to make the ball go in a straight_line, stop and come_back to the starting spot ? Do you turn a potentiometer ?Do you send RS232 or I^2 serial command strings ?Or do you depend on ladder programing to respond to a High/Low/High switch transition ?

I understand It is going to be autonomous and you are going to try to make it zero turn radius and have the drive wheels steer as well push the vehicle.But the engineer needs to know, why two motors which adds extra weight and inefficiency ?Do you already have them ? What are they ?