Guide: Weapon Counter Display Overlay

Took a lot of trial and error, but I think I came up with a method to make adisplay overlay that I can be proud of. Thanks for the help James Hodson(jlhR2).




Click More Info for the full guide.


The overlay is meant to go on top of my ammo counters, but also looks goodwhen used alone with a light behind it. The overlay is made of severaltransparency sheets layered atop one another plus a sheet of tracing paper toact as a diffuser. Could probably substitute tissue paper.

The image files to print out are below. You will need to re-size the imagesto fit your weapon before printing. If printing at home, be sure to buytransparency sheets meant for ink-jet printing and not laser printing.Ink-jet printable transparency sheets have a rough surface to print onto.

I find my photo printers T-Shirt Transfer mode gives the best print out. Ittakes some trial and error, but set the Print Quality to high for bestresults.

Halo Reach

Click Picture to download full size

Halo General Purpose – James Hodson (jlhR2)

Click Picture to download full size


There will be four layers, from bottom to top there is the tracing paper,two black transparencies, and the color transparency.

The tracing paper and the black transparencies need to be cut so the numbercan shine through (xacto knife). If not using an ammo counter circuit, youmay cut in whatever number you like.

DO NOT cut the color layer transparency. Thisis what colors any light shining through to the proper hue. It also makesphotographs when unlit look amazing.

Tip: I first cut a piece of paper the size of the hole I wanted then taped itdown so I could have something to trace with the knife.

Below are pictures of building up the different layers. In these photos onlya single layer of black is used. You can see that the light gets through abit in areas that are supposed to be black. This is why we use two layers ofblack.

Clear tape is used to hold the layers together and keep them aligned.

Have fun~!

DIY Recoil Action

Goal here to add the sensation of recoil to a prop rifle gun.  I have seen it done with compressed air and motor pistons, but neither are easily synchronized with electronics and capable of rapid firings for full auto fire.  Leaves me with the third option of using a solenoid.  To fire a solenoid with enough furiosity to kick the gun into your shoulder involves some serious power requirements.

I did a dry run yesterday and came up with this circuit.  The solenoid is rated 12-24V and 3 lbs force.  Using the circuit below it was weak at 18V, fully actuated at 27V, and actually had some kick at 36V.  I am not sure I want to take it higher.

sol_control_simple

View Full Size

The next step is to design a circuit to use a lower battery voltage. Three C cells should be sufficient. The 4.5V from the battery would be stepped up and charged across the capacitor. The control circuit would be connected to the solenoid circuit through a optoisolator and a mosfet.

Installing a Light Kit

This is a guide for installing the light kit sold in my store. Click more info for the full guide

battmon_installbattmon_install


Connecting the battery

Wire the board to the existing battery in your project. The red wire from the battery holder is the positive wire, connect it to the + battery terminal on the AR_Light board. The black wire from the battery holder is the negative wire, connect it to the – terminal on the AR_Light board.

Wiring the LEDs

Note:
There are two ways to connect each LED, but only one is correct. You cannot break anything by connecting an LED backwards. If it doesn’t light up, simply flip it the other way around.

Orientation Note

To connect an LED the proper way the first time, note on the Light Board that each LED connector is marked + and -. Also note the LED leads, one is long the other is short. The long lead connects to +, the short lead connects to -.

Color Sorting

If you received clear LEDs in your kit, you must first identify which LED is which color before permanent soldering them to the Light Board. With the Light Board connected to the battery and powered place an LED into one of the LED connectors. Sort the LEDs with the green LEDs in one pile and the red LED in another pile.

Wiring Steps

  1. Using a soldering iron, solder all of the LEDs to wire pairs. Use the above picture for reference.
  2. Next, connect one of the wire pairs to its corresponding LED connector (see orientation note). After you have determined the correct orientation (it lights), solder it permanently into place.
  3. Repeat step 2 with the remaining LEDs.
  4. Use heat shrink tubing or electrical tape over any bare wires to keep leads separated and protected.

LED Rail Blade Assembly

This guide will walk you through assembling LED strips to place inside an electronic sword prop.

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TOOLS AND MATERIALS

    spool
  • Spool of unshielded bare wire
  • Few feet of shielded wire
  • Solder Iron
  • Solder (0.5 oz is plenty)
  • Wire Snips
  • Needle Nose Pliers (optional)
  • Hot Glue or Clear Packing Tape
  • Safety Glasses

You can use any bare wire you like, but I found that steel craft wire works best (pictured). It is strong, thin, and does not need to be stripped.


redblue

Take a close look at one of the LEDs.  You will notice that at the base of the plastic there is a flat edge.  This identifies the red wire.

led_prep

The hardest part of the blade assembly is keeping straight which side is which because all the LEDs must connect the same wire to the same rail.  I suggest bending all the wires on the LEDs before you start soldering in such a way that you can easily check which wire is red and which is blue. For me, I bent the positive wire straight down and the two side wires straight out.  When I hold the LED with the positive wire facing down and the LED pointing towards me, the red wire will be on the right.

Unroll three lengths of about 35-40 inches of wire (we will snip this down later). Use weights and tape on either side to suspend two of the wires. You want to suspend it the approx. length of one dangling LED wire so when it sags from the weight of the LEDs it does not have far to fall. We want the suspended wire tight and remain straight.  See the picture below for the spacing between the two wires (a little larger than the width of a LED).

Lay a ruler down below the wire. We will use this to align the LEDs and be certain the spacing is consistent.

helping

Note:
You can use any spacing you like, but you have 60 LEDs for two 30inch blades.  A spacing of 1 inch seems appropriate.

In the picture I am using a tool called “helping hands” to hold my wire.  I bought mine from Menards for ~$5.

pass1

Warm up your solder iron and solder the LEDs to the single rail, but do not snip any of the leads yet.  You can start with either the red wire or the blue wire, but we will do the positive wire last.

For soldering the last few LEDs to the second rail, I brought the wires down from the suspension. The two rails were too far apart.

Before you go onto the positive wire, this is a good time for touch up.  The more solder you put on each joint, the “stronger” it is.  These blades will probably get knocked around, so we want these joints strong.  You can see in the picture the old quick and dirty joints (left) vs the new stronger joints (right).

Test:

pass2

If you are not confident in your creation, you can also test things at this point.  The wire unconnected is positive, the two rails are both negative.  Use a resister between a 9V battery and the LEDs.  BEWARE: At this voltage, one slip of the hand that exposes the LED directly to the battery will destroy the LED.

What I do is clip the battery negative to one of the rails then drag the resister across the positive wires, testing each LED in the row.  Repeat for the second rail. If something doesn’t light or lights the wrong color, it is easier to fix now than later.

Once you are confident, clip off the extra wires on the two rails and prepare to solder the resisters onto the positive wires.  If you did a good job, the rails should not be much wider than the LEDs themselves.

res

We need to solder the resisters between the positive wire and the positive rail.  The picture shows the steps of soldering the resisters and the positive rail to the structure.

Be sure that there is a gap between the positive rail and the positive wire.  You can see in the final picture how close they are.  If for some reason the blade was squeezed and these two wires touched, the LED would be destroyed.

You can either trust the gap or try to seal the gap with hot glue or a piece of clear packing tape (has to be thick enough so it can’t be punctured by the sharp edges).

Clip the stray wires (don’t want any shorts) and connect the bottom of the rails to a battery to test.  The entire blade will light up red or blue with each connection.

The last step is to cut the blades into 5 sections. I am assuming you used 30 LEDs in each blade, so each section will consist of 6 LEDs.  Cut the blue wire between each section.

sections

ONLY section off the blue wire, the red and positive wires will run the entire length of the blade.

You can see in the picture the new gap between the blue rail sections and the shielded wire soldered to the section.  Each section will have its own wire.

Use the tape or hot glue to bunch the wires and keep them from becoming tangled.

Note:
It is a good idea to use a marker and label the wires. One dot for the top of the blade, 5 dots for the bottom, 2/3/4 dots for sections between, dash for the positive wire, two dashes for the red wire.

The final blade will be pretty flimsy depending on the type of unshielded wire you used for the rails.  This allows it to be gently bent into the curve of a blade. After shaping the LED rail to fit your blade interior, wrap in packing tape to strengthen the rail shape.

Finished:

100_4285.JPG 100_4266.JPG

Animated Light Controller

Using a spare attiny2313 to control some solid state relays. Four channels total, two outlets are always on.

100_5635.JPG 100_5636.JPG 100_5634.JPG

Here is the schematic. The LEDs are mis-routed to the same path as the relay control wires. Turns out the LEDs sap current and don’t allow the relays to trigger properly. Leave the LEDs disconnected and all is well.

relay_control

CSS, DB, and HTML changes

Blogger.com was a great solution for doing all the backend work of writing articles to the site. They will no longer be supporting me and my ftp using friends. I have migrated to WordPress.

Want more? How about a site flashback? Hit more info for a fun look at my index pages throughout the years.

2010: WordPress Installed *Current
2009: Blogger.com FTP Publishing
2008: CSS Design
2007-2006: Flash menu and ugly frames
2005-1998: No archive pre 2005, but was java based toward the end

Installing an Ammo Counter

PowerSwitch

This is a small walk through of installing one of my ammo counters available in the store. I am need of pictures, please send me pictures of your install, thanks! :)


Tools Required

  • Solder Iron (I bought mine for $5 at menards)
  • Solder (I use 60/40, 0.032″ diameter)
  • Wire Cutter / Stripper
  • Tape

Pregame:

For quick start and demonstration of the counter. Connect the battery to the circuit. Use the red and black wires labeled BATT or BATTERY. Connect black to black, red to red.
No need to solder at this point, just twist the wires together and maybe use some tape so the red bare wire doesn’t touch the black bare wire.
 
The counter should now be on, take the wire pair labeled FIRE and connect these two wires together. Each time you connect them together, the counter will decrease. Do the same thing for RESET.


Kit Contents

  • Assembled Counter Kit
  • AAA Battery Holder
  • Pushbutton Switch
  • Slide Switch
  • Lever Switch

Install

Note: Before getting started

  • All wire connections must be soldered. Twisting the wires onto the switch connectors will create a poor and inconsistent connection.
  • The included switches only have two connectors. They can be soldered in any order to their associated wires.
  • You may need to cut the casing to install the switches through the plastic housing of your gun, so be very certain with where you want them.
  • Please read and understand this entire page before cutting anything! thanks

Step 1 – Identify and place FIRE switch

The FIRE switch has a long lever on it. If you have an existing trigger, use the lever to connect to your existing trigger in such a way that when you pull the trigger, it will also push down on the lever switch.
If you do not have an existing trigger, you may use the lever switch as a trigger itself.


Step 2 – Identify RESET switch

The RESET switch is a square pushbutton. It has a matching round cap. The cap snaps into place on top of the square pushbutton.

Step 3 – Identify ON/OFF switch

The ON/OFF switch is a slide switch. It has mounting holes on either side so it may be fastened down.

Step 4 – Arrange

Carefully arrange the different switches and batteries around your gun. Figure out where you want them. If you cut the casing of your gun, leave an opening so you can run the wires through the hole.
The on/off switch must be placed between the battery location and the counter location.

Step 5 – Wires

Next, install the counter and thread the wires to the various locations.
If the wires are too long, cut them the proper length and re-strip them.
If the wires are too short, you will need to extend them with more wire. Tape any bare exposed wire ends.

Step 6 – Solder On/Off

PowerSwitchIf you have not already done so, please solder the counter battery wires to the battery. Match red to red and black to black. Cover the bare connections with tape.
 
Now you may solder in the on/off switch. The on/off switch is to be installed along the red wire between the counter and the battery. Choose a place along the battery wires to install the on/off switch. Cut the red wire and strip it so you can solder the on/off switch in place.
 
To the right is a drawing of installing the on/off switch.

Step 7 – Solder FIRE and RESET

Solder the FIRE and RESET switches. As noted previously, these switches only have two connectors. There is no wrong way to connect them to the wire pairs. The only thing you need to be certain of is that the bare wires ends do not touch each other, they should only be connected to the switch connectors.

Rockband Stage & Light Kit Mod

Sorry, I do not have full writeup for this project. Here is a photostream of the mod.

Rock Band Mod on Flickr

Pretty much what I did was take an off the shelf strobe light and swap it for the one built into the fog machine. Re-wired a ps/2 keyboard cable connecting it to the liberated rock band strobe light. Now I can use the strobe light with the game without dragging out the fog machine.

Also added override switches on the fog machine so I could activate both the strobe and fog machine outside the game.

Hosting Fees

I thought it would be interesting to figure out my hosting fees for the last few years. My awesome host is NFSN.

Hit More Info to see the cost table.

2007 was a seven month year.

Year Deposit Fee Registration & Renewal Bandwidth Charge Storage Charge MySQL Charge
2007 $1.00 $7.50 $1.18 $1.02  
2008 $1.30 $15.98 $2.73 $4.68 $1.47
2009 $2.15   $5.26 $15.17 $3.65

Looking at the data, I notice that my storage fees have taken a sharp increase. In two years the physical size has more than tripled to 225MB.

Then if I plot my storage fees divided by my physical size, I find the prices have stayed the same. This is the cost of growing I suppose.

Avatar Sequel Scripts

I had some ideas for the avatar sequel and wanted to write it down. Turns out, I guess it was a fully developed idea because it turned into 5 pages. Click ‘More Info’ to enjoy!

Movie #2
[Due to science reasons the 2nd movie must take place ten years after the first.] The camera opens on pandora and Jake giving us a montage recap of the past ten years. He took his place as the leader omaticaya and replanted hometree. With Eywa’s help, hometree has now grown almost a hundred feet. It will still take many generations before they can live there. In the mean time they have created themselves a tree village, high above the ground. The omaticaya’s skills with fabric have become more in demand making peace and trade relations with the neighboring tribes easy.
After the montage, Neytiri asks to accompany Jake on some lame mission that requires Jake to leave the village by himself at night. I won’t go into the details of this mission but imagine this, it will be constantly pretty to look at and pointless to the plot at the same time. As Jake returns to the tribe, he sees a flash in the sky. He has dreaded this day for ten years, the sky people have returned. He hastens his pace back to the village to gather a search party and they all run together toward the fireball that is slowly descending from the sky.

[We are now seeing things from the perspective of one of the crew members.] Not the captain, but very much a leader of the people on board the ship. The ship they have resided in for three years is much smaller then previous ships that were sent to pandora, manned by only a handful of crew. They had no choice but to steal this ship. The only other ship available was under the close guard of the military. [clunk] They have landed. The leader asks to leave the ship immediately, they must not waste any time. As the doors of the ship open, the crew realizes their mistake. The ideal plain that they have landed in is a herding ground for hammerhead titanotheres. They are able to escape the scene, but watch from a distance as their ship and all their supplies are shredded by the jungle creatures. The remaining crew gathers what they can carry and venture out in search of some na’vi people.
They make so much noise that they are easy to track by Jake’s party and he intercepts them. When he meets them, Jake does not know these people but is compelled to trust their words.

[The next HOUR!!! of the movie consists of a stupid and depressing flashback.] Back on earth, the return of the military and miners from the failed Pandora campaign is met with the greatest of sadness. The atmosphere of earth is in a process of rapid decay. A few years ago when Jake left, only a few people wore breathing masks outdoors for health concerns. Now everyone wears them. Much like Pandora, Earth’s atmosphere is toxic. The current government had promised the people of Earth a solution. Using unobtanium [and some techno mumbo jumbo], scientists had a bold plan in place to completely restore Earth’s atmosphere and give a kick start to agriculture. The ships return with an empty cargo hold all but nails the coffin shut on the human race. They do not have the time or the resources to mount another mining expedition. The leaders of the world would now consider the most desperate of plans. A plan so despicable they would have never even considered it before this event. The plan is to use the same technology that would restore the Earth’s atmosphere on Pandora instead, effectively killing off the entire ecosystem of Pandora. Everything living on the blue world of Pandora would be killed to make way for the green of Earth. Implementing the plan would be simple enough. They wouldn’t even have to land on the planet to activate the device. A missile containing the device would be launched from orbit at a high enough velocity to penetrate the crust and tap into a vein of unobtanium. The process would start a chain reaction releasing a reactant into the air that instantly converts the Pandorian atmosphere into an Earthian one.
The plan was so horrible that it was kept a state secret till now. The leaders brought the plan public, because they needed the full support of the world’s industry to complete the plan within the allotted time table. The people of course demanded a vote, the vote was met with extreme protesting and violence. Yet the vote to proceed with the plan passed anyway. It is widely believed that the vote results were fixed. This leads to more protests and more violence. At the same time the plan proceeds. The project is made up of people who are desperate to save themselves, their families, and their people. As the launch date approaches, two missiles have been prepared. Across the world, the news telebroadcasts surprise as a premature space launch is detected. A cult of na’vi worshippers have stolen a small ship outfitted with a space drive. There is no doubt where the traitors are headed.

[Flashback has ended, oh thank you!] It is now revealed that the small ship did not have cryo sleep. The crew has been twiddling their thumbs for three years eating recycled food and drinking recycled water. [Yummy!] The lack of stimulation has made their minds soft and the speech they prepared during their journey is now revealed do be missing logic.
Jake, using his best skills is able to interpret the message. It was clear enough. The sky people are returning and they bring a terrible weapon. Jake invites the humans to come with him to hell’s gate, this is the name for the original human settlement on Pandora. There we meet more humans that have been surviving on Pandora and continuing their research for the past ten years. We find out that the avatar program is back on and has been perfected. Avatar bodies can now be produced in weeks instead of years. They even have reverse breathing masks so na’vi people can hang out indoors. [yay!] Jake leaves them there and returns to his people to come up with a plan to defend against such an attack. After consulting with the rest of the humans, he is now certain that the attack will be space bound. The humans wouldn’t dare step foot on Pandora again without such a tactic. Consulting with the rest of his tribe proves to be useless, what defense could they have against a sky enemy that never steps foot on the ground. Jake goes to the tree of souls to consult with Eywa. After making his plea he carefully listens as he was taught to. He can make out a whisper telling him to go on a journey to meet Eywa in person. Jake returns to the village and requests everyone join him at the tree of souls to perform the ceremony.

[Jake's journey of the mind starts off kind of boring. Sure it is pretty, but it is all so existential, which I don't care for] To summarize though, he does a lot of floating and the background is filled with other floating things and everything is very bright. After a bunch of floating he finds Eywa, but at the same time not Eywa. Not what he was expecting. It is Dr. Grace as her human self! She tells Jake of a great weapon that she is helping Eywa create. A tree cannon. Jake instantly has doubts [me too, lol], but Grace promises him that the weapon will be completely effective against an inbound ship. It turns out that Eywa was not just growing hometree for the omaticaya people but also to use as a weapon. The unobtanium just beneath hometree is being absorbed into the roots and converted into high energy plasma. Jake must sit midway up the tree where a purple interface vine has been hidden. Jake thanks Grace and is about to leave, but is now shown to be restrained. Grace moves in closer to Jake to give a stern warning. Due to the nature of the weapon slowly gathering resources from the ground, he will only have one shot to hit his target. It would take years to recharge for another shot. The shot will be wide so the ship is unable to maneuver out of his crosshairs. Jake is then allowed to leave and awakes lying on the ground. Two days have passed and his people nearly gave up hope for his return.
[oh tears it is!] The END

[Tree cannon? Seriously, this is the best they could come up with? lol, You want to see that tree cannon fire a volley at a space target, don't you!]

Movie #3
[Just to mix things up] The movie opens on the blue gas giant that Pandora orbits. Slowly rotating around to see Pandora as a small ball in the distance. Not wasting any time, they get right into continuing the story. Despite protests from his village, Jake is able to convince them that hometree has become a weapon to eliminate the sky people. [Montage and rehashing old music!] Jake orders his people far away to take refuge with over tribes. The date that the sky people arrive is fast approaching and he still has much to do. Like learn how to control such a weapon. The humans help him the best they can, coaching him in projectile physics for high velocity plasma. [lol this script is that side of awesome]
Word gets out about his plan to eliminate the in bound humans and is met with opposition from the other tribes. Pre-emptive attacks are not their way. The humans must make the first move. Jake passionately makes his case for destroying the human threat, but is met with death ears. Jake is no long the Toruk Makto and they have no reason to follow him. The other tribes place a permanent military presence at hometree and do not allow Jake anywhere close.

With his tribe disbanded for the moment, Jake is alone in his fight. [what about Neytiri, haven't heard from her for a while. Truth is she has kind of just been hanging out in the background of most the scenes, not really contributing to the plot, till now!] Neytiri comforts Jake and another half baked na’vi hair brained sex scene follows. Jake’s mind is made up. He must find his long lost companion, the leonopteryx, and become Toruk Makto once more. He goes on a brief montage hike into the jungle to find the leonopteryx. He does and the leonopteryx remembers him. On his way back to push his way up to hometree, disaster strikes. Not only was he too late making it back to hometree before the sky people arrived, the humans had already fired one of their missiles.

The missile was aimed at the richest unobtanium deposit that they had charted, the one right beneath hometree. Jake can see the devastation even from such a great distance away. He turns and instead goes to hell’s gate. While there he is able to make contact with the orbiting ship. The man in charge on the ship assures Jake that once the unobtainium vein was converted the pocket of concentrated earth air would remain isolated to that particular valley and not spread further. After terminating the communication, the scientists at hell’s gate explain to Jake that assurance was a lie. The two atmospheres could not coexist. Right now the earth air was slowly being converted back into pandora air, but another missile could flip the balance. If earth air became widespread on pandora [didn't they already explain this in the last movie?] everything on pandora would die. Not just the plants and animals, but Eywa too along with all the generations that she has preserved. Jake must travel to ground zero of the missile attack and fire the hometree weapon. The earth air that is now present there is toxic to na’vi people, but using one of those fancy reverse re-breathers Jake sets out for hometree.

Back on the ship, we have some random character development, and the audience tries to feel sympathy for their own race. The propaganda from earth against pandora is in full swing. All that false information has led to extreme prejudice. The humans can not wait to eliminate the na’vi menace and have already begun to shuttle passengers down to the surface. They still need the second missile to ensure that earth air will be produced by the teraforming machines and remain in high concentrations for several hundred years. Enough time for them to create a new ecosystem. They just have not found a second vein of unobtainium with enough mass to convert yet. Additional shuttles are sent out as survey teams. On the third day a survey report comes back, another vein has been found on the other side of the planet. This one is the largest ever discovered. Big enough that it could convert the entire pandoran atmosphere in one go.

Jake is finally arrives at the hometree weapon. [why didn't he just ride the leonopteryx or take a gunship to speed his travel, idk] After the making “the bond” with the tree weapon, Jake suddenly sees the world with “Eywa Vision” being able to see everything, everywhere, and can clearly see the ship in orbit. But what is this?! the ship is moving away. Fast. He acts quickly, aims the weapon, and fires a shot that, he guesses, should intercept their trajectory.

Back on the ship, they have no sensors for this kind of attack. They only realized they were under attack when the plasma burst was within visual range [you know microseconds before impact, lol]. The attack WAS completely effective, but not in the way originally thought. The ship was not destroyed, but its engine was disabled. The ship was now in a decaying orbit and would burn up in the next 10 hours. An evacuation is ordered. Then a discovery is made, someone thought to run a simulation based on their current trajectory. They would reach their target a few minutes before the ship exterior would melt and be unable to fire. It is also explained that there was no contingency plan for this, the missile could only reach the unobtainium deep below pandora’s crust if it was launched from orbit.

Long story short, their plan fails. The launch tube jams and the weapon detonates in space.

Interestingly enough, the evacuates are able to make it to the surface. The humans convince Jake and his people that the weapon was not their doing and they should be allowed to stay. They make camp around hometree, where the highest concentrations of earth air is. They still have to wear rebreathers, but the air here is far less toxic than elsewhere. [No more skin rashes, yay!] The scientists estimate it will be about a decade before the earth air dissipates to the point that the air their will become completely toxic again.

The movie ends on somewhat of a political note as Jake is in a constant debate with the other tribes who want retribution against the humans. [Oh well, maybe in sequels 5 and 6]

Thanks for reading!
Dustin Westaby