Monday, December 12, 2016

4x4 Camera

Yeah, with little WiFi cameras, a lot of the fun is finding new places to put them.  These cameras are ~$10, and you can even put an SD card in them to record the video.  With the WiFi, your phone/tablet can let you see things real-time.

Like underneath a 4x4.  We bent a quick-n-dirty bracket for the camera, to hang off the tow-hitch in the back of the truck.

Or, we also glued 2 rare earth magnets and it will attach ANYWHERE...

This one was really fun.  Fun and fast to build, fun to test, and worked GREAT!  Mud and water covered the camera over and over, and with a quick wipe, it was back in action.  Need to figure out a splash guard or something.

Here's some of our highlights:
4x4 Cam in ACTION!

Plus, you can check out that roadkill along the road BEFORE you have to get out of your rig to pick it up!  Efficiency!

Another Gun Camera - WiFi for Around Corners

Small, inexpensive cameras are everywhere now.  They have WiFi available, too.

Here we put a small wifi camera on a laser for a handgun.  Any phone nearby can see the laser in the broadcast image.

Really fun to use, though I'm not a big fan of gadgets on my guns... especially electronic gadgets.  Here we put the camera in the handle of a cheap foregrip.

I think these would be most fun for Airsoft.  Easy to shoot around a corner, not life critical.

Here is a different mount on another cheap laser.

The camera weighs only ~1.5 ounces, so it is hard to notice on the end of a handgun.  They are pretty inexpensive on eBay, too so that makes them even more fun.

Also, the camera can detect IR light - so if you have an IR flashlight or spotlight, you have night vision!

Friday, April 29, 2016

Spring Miscellaneous

Lots of stuff going on, besides new leaves on the trees.  We've started planting the garden early this year - almost 1 month early... so we'll see!  With the garden in, the fences go up to keep the chickens OUT!

Some blacksmithing going on, too.  A new sword this time, and finishing up the handle on a knife.  Here he's making a few precision adjustments...

"yeah, straight enough for battle!"

The texture on the knife blade is pretty cool.  Handle is birch (from the Yukon), with brass mechanicals.

We got rid of one of our roosters, and with one left (for now...) we thought we'd break out our egg incubator.  Here's a little circuit for sending the temperature and humidity to the internet for graphing every 15 seconds.  Testing now to see how many days we get off the battery.

Oh, and it is spring, which means Trout Fishing!  So, we may not post projects for a while...

Livin' the good life!

Kite Camera Videos

A few videos of our waterfront testing.  We used both top and bottom connectors on the camera, to show the different viewing angles of the video.

Kite Camera Test at the Waterfront

Also a video of the kite crashing into the tree.  Fun!

Is it a Bird? Is it a Plane? Is it a $2K Drone? NO! Introducing Kite Camera!

This has been another fun project.  Having eager and smart assistants always makes it fun.

Yeah, there are drones to do this, but we thought 'hey, why not on a kite?', and figured we could do it better than what was already on the FaceTube.  So we tried, crashed a few, burned one, and got one up in the air!

Pretty simple design, with a small camera (17grams, that is like 0.6 ounces!) that can do 1280p video.  Or, it can do lots of pictures.  There are also some more expensive (and slightly heavier) cameras for 60 frames-per-sec.  This one was just right.  Another plus is that our small solar panel in the truck can keep it charged-n-ready.

Our kite was nothin' special, a decent, small, and 'cool' kite we can keep with us.

Good thing it was cheap(er), because its been in a tree a few times...

No problems, though... it led us to create our super-awesome-PVC-Kite-Picker!  Order now, supplies are limited ;-)

 Never down for long, we quickly got back into the skies.

Our only problem now in the Spring is... dependable wind.  Oh well - we keep this one in the truck for any chance to get it out.

If you are interested in our design, shoot us an email at  I'll help the kids make you a bracket (camera not included) for $5 USD.  Want a camera with it?  We can figure out a price for that, too.  Oh, and a nice, convenient, Android Smartphone app to view, download, and configure your cameras soon.

Stay posted for more videos!

Thursday, March 24, 2016

Sand Casting with Aluminum

Ok, now this little project is getting real ;-)

We started with the aluminum ingots we'd made a few days ago.  They heated up quickly with much less junk.  We used the same crucible, so most of the junk in the metal was left from our heating the cans and brass cases.  The best part?  Cutting out foam forms!  We picked up a big sheet of foam from the Dollar Store, and with an inexpensive cutter off ebay (foam cutter $2) it was so easy to cut out some arrowhead shapes.  Even some 3D shapes were easy with glue.

We even tried a few 'exotic' arrowheads, including some 3D Fire Cage Arrowheads.

We buried the foam in play sand in a small tupperware bin.

Then we wett'ed the sand, and formed small cones around the foam to pour the aluminum into.  Here are some of the ingots we made last week to melt for the casts.

The ingots heated up quickly, and it was really cool to pour.  Again, because of the thin metal crucible we only got a single pour before the metal cooled too much and wouldn't pour well.

The casts turned out AWESOME!  Identical to the foam cutouts, and small details are in-tact.  We shook the sand well to make sure it settled into each detail.

These are a couple of "bird tip" arrowheads that Mongol archers would use for ducks and geese.

It was easy to cut off the overpour with a grinder and shape / sharpen the arrowheads.

We dropped paper on the overcast to show the kids just how hot the metal was before we pulled them and put them into water.

Unfortunately, the bigger, 3D casts of the Fire Arrowheads didn't turn out.  The metal seemed to have cooled too much to get down into the bottom of the foam mold.

Still, this was so much fun, we all agreed this is worth the effort to melt down cans.  Easy, cheap, and very engaging.  Highly recommend it.  Now we are having fun thinking of all the fun things to make...

Making Metal (part 3) "Going for the Gold!"

Ok, with a working kiln of fire bricks, we thought we'd try something a bit more difficult than Aluminum and Lead.  We had a bunch of 22lr brass we'd picked up when out plinkin' in the woods, and thought it would be fun to melt down some brass ingots.

Aluminum melts at ~1200*F, and brass at ~1500*F so this is going to take a bit more heat.

The brush torch got plenty hot.  Nice thing is we can crank up the heat fast and easily with it.  You can see the brass in the pot.  The pot was hot!  Most of it was 22lr, with a few 45 and 9mm cases.

Before long (~10 min) the brass was a gooey mess in the opt.

Again we put in some Boric Acid (from Dollar Tree) to help separate the junk from the metal.  It burned green, and foamed up in the pot.

The ingot was cool!  One drawback with our propane bottle crucible is that the thin metal cooled really fast, and we had to pour quickly before the metal inside cooled too much to flow well.

Again, there was a lot of foamy junk in with the brass we had to skim off.  Some of this was from the aluminum, too because we were unable to clean out the pot completely before doing brass.  Next time we'll have different crucibles for the different metals.

There wasn't a lot of brass when it was all finished.  Then again, we only started with 2 big handfuls of 22lr brass, so the yield was ok.  And the price is right.  Sure looks perdy, too.  Wouldn't it be fun to scatter small pieces of this in a stream or mountain brook?  We could start another gold rush ;-)

Smelting down cans and brass is great fun, and very engaging with teenage boys.  The results are fun too... but now we are ready for making something out of this mess.  Stay tuned...

Makin' Metal (part 2) "Turning up the Heat!"

So this time we bought some fire bricks, and pulled out the weed-burning propane torch.  This was the way to go!  We need something a little more fixed and secure - the bricks were just stood up on end and were a bit shaky... but it got HOT.

Feeding the cans in was quick.  A brick on top really made a significant difference, too.

In minutes the kiln got very hot.  Our welding gloves warmed up fast.

Again, the ingots turned out nice.  If you zoom in you can see the crystaline structures on the surface of the ingot.  We used a bigger muffin tin for this pouring, too.

Again, melting down cans left a bunch of junk.  We did a lot to skim off the junk from the top before pouring the ingots.  Keeping a bucket of cold water handy was useful and our safety precaution.

Our next step will be to do something useful with the aluminum.  We are also going to find a better source for aluminum to melt - we melted down ~100 cans to get a few big ingots, so it takes alot of time and effort.  We did add Boric Acid to the metal, and it foamed up on the top and seemed to help pull the junk away from the aluminum... but we aren't sure if it also made more of the foamy junk metal or not.  We'll see.  This has been a lot of fun!

Meltin' Metals (part 1)

We collected a few aluminum cans, and after lots of FaceTubing, we thought we'd try melting them down into ingots.

First try was with coal in the forge, while we pounded out some metal.  We cut the top off an old, used up propane tank.  This method was pretty slow but didn't cost anything.  It took us ~30 min to melt a can or two and we lost interest.

Our next attempt was with a #10 can and some ceramic paper.  The paper was off ebay, and we paid ~$6 for 3 sheets.  it took 2 sheets to line the can.  This time we punched a hole in the side of the can for the hand-held propane torch.

This method was MUCH faster - we melted ~30 cans in about 30 minutes.  Cheap, and fast enough it kept our attention this time.

The flame was concentrated on the one side of the crucible.  the heat spread, but not more than half way around.

The cans melted pretty fast, but we were surprised how much garbage was in the metal.  About half of the metal was unusable - and we had to do a lot of skinning off the top.

The ingots we poured into a small muffin tin. They turned out really cool!  You can see some of the 'garbage' metal, too.  Not sure if this is poor-quality aluminum or from all the plastic, etc in the cans.

Great fun, fairly fast, and pretty cheap to do.  $6 for the ceramic paper, $1.50 for the propane, and $2 for the muffin tin.  Worth a try!

Wednesday, February 3, 2016

More Chainsaw Carving

Winter time is slower, colder, and wetter than I'd like, so I try to keep projects and activities waiting for the dark months.  Besides, during the spring, summer, and fall there are so many things to do, no sense in wasting time on writing software, tinkering with electronics, or sewing blankets.

I've spent a few hours chainsaw carving again.  Of course, there is an app for that: It is helpful to review and goes step-by-step to remind me where to cut... and more importantly, where NOT to cut.

My friend the pro gave me some more Cedar logs, so I'm reloaded for the winter.

You can see the mouth here is way too big... better too much material than not enough.  So it was easy to adjust.

Turned out pretty good, but only whetted my appetite for sawdust and i moved on to another.

Here's the first one...

And here's the second one.  Focus this time was on the face proportions, and the front of the shoulders.

Some burning, some eyeballs (marbles), and some protection...

Chainsaw carving is really, really fun.  If you own a saw, it is worth trying.  And to watch a professional is always a good time.

Check him out -