Bolt Pistol done

Finally got around to finishing the bolt pistol and it looks pretty good. I can see a where I need to tweak the design a little as the magazine scale is a little off and I my go to a slightly larger barrel. Here are the pictures. I have to get back to the drawing table and modify the design for some 1/4" laser cut goodness. Stay tuned...

Bolt Pistol

More painting less writing. 

Airbrush Spraybooth

I have been meaning to post this for a week or so and have just been too busy to get the tutorial written. So here is the build in photos. The fans are 100 cfm, 12V PC fans. These were ones form an older PC project. Really as long as you can pull 150 cfm or more you are normally fine. Most small commercial units max out at 180 cfm. It really comes down to how quiet you want the thing to be.

The fans are brush-less but not spark proof. Sounds scary right. Not really, unless you are using rattle cans or spraying straight alcohol the fuel/air ratio is to low for anything to ignite. Also I use a mix of water, flow aid and matte media to thin my paints. None of the products are flammable. I do not show the exhaust tube and shroud in the pictures but really they are not needed. No matter what anyone tells you or how well you vent it DO NOT USE RATTLE CAN PAINT IN THE BOOTH!!! 2 reason 1) it can ignite and loosing ones eyebrows or house is never a good hobby sacrifice. 2) the propellant will kill the fans by eating through the varnish on the motor windings causing them to spark and then see reason number 1.

The entire thing was built form scraps from other projects so cost was nothing but if I had to add a price it could be copied for $20-40 depending on the fan selection and filter price.

Enough typing, on to the photos.

Obtainium Pt.2

Last time I showed off a bit I got from a vendor. This time the parts are going to cost you but they are well worth it. Tech Deck, the company that sells finger skateboards has a full line of terrain for them. All of it is modular, really durable, highly detailed, affordable and best of all scaled perfectly for use on the terrain table. The bits start at $5 but I have gotten large sets for $20 but on clearance for as low as $7.

So what kind of board could you build with them? They work perfect for a training ground board. If you have ever seen Starship Troopers, Appleseed ExMachania or S.W.A.T. you will remember scenes of troopers running through make shift city buildings or hills. Mimicing that look is reall easy with these sets. In this setup give them a quick coat of grey paint, a wash and drybrush and you have a full table set in a few hours. The modular design means that every game can be different. It also adds that vertical element that so many tables are missing.

What if you want a more rustic, dirt mound look. Turns out they have those also. They are part of their BMX trick line. That should get you going, so next stop the toy store.

Obtainium: terrain edition

obtainium (noun)
1. any item, found or obtained for free.
2. materials used to create art work such as assemblage, mixed media or sculpture that wasn't bought new, but obtained in other ways, such as second-hand, dumpster diving, chance findings or donations.


Building good terrain relies heavily on obtainium. In most cases it is found as raw materials like foamcore, craft sticks, etc. Other times it comes as finished products by companine like GW and Woodland Scenics. Sometime obtainium comes in even stranger forms. 

I got this from a vendor that sells industrial AC units. This is the perfect start to a 40k generator building. Scale wise it is just the right height, large enough to hide things behind but not so big as to dominate a table. The model comes appart you can see all the details. These kinds of models are great and strangly easy to get. Mine was a gift but if you talk to the people at your local heating/AC shop they usually have old models collecting dust that they are willing to part with. Other places to check are big box hardware stores. They get in alot demo/display models for sales that get thrown out after the sale is over. 

The parts are out there, you just need to obtain them.

Foam cutting table overview and possible redesign

A couple of years ago I posted a video on my YouTube channel of a foam cutting table I built for some terrain projects. The design is pretty simple and there is nothing hidden in it. You could probably build one from just the pictures but I figure any help I can give with the details may help if you want to build your own. It will also give me a chance to give some suggestions on making it better.

The parts list:

• 1/2 inch wide aluminum bar stock
• wood battens, I used some scraps of 1x2 but anything up to 2x4 will work. The small stuff is just easier to work with.
• laminate topped wooden board, mine is a counter top off cut. An old laminate shelf at least 12 inches deep would also work.
• wood screws
• eyelet screws and bolts
• bolt, wing nut and washer long enough to go through your choice of wood battens
• 22 gauge wire
• toggle switch, I used a paddle with an LED "on" light
• 12v 1.3a power supply
• nichrome wire, got this from Woodland Scenic. You can also used some types of guitar or piano wire. You just may need a beefier power supply

The design:
If you have ever seen a scroll saw the design will look familiar. You are building the same thing just replacing the saw blade with a piece of wire. The second difference is in the tilting mechanism. In a scroll saw the base tilts to allow for angled cuts. For the foam cutter version it is easier to tile the wire than the base so the arm is designed to pivot giving the same effect. Lastly the base size is larger. This makes it easier to get the piece flat against the table for better cuts or working with large pieces of foam. The arm the wire attaches to is made of aluminum. This material was chosen because it is easy to work with and springy. This last feature simplifies the design by not requiring any extra pieces or springs to keep tension on the wire.



The electronics:

To keep things simple the power supply is one of those generic "wall wart" dc power supplies. The one I used is a 1.3amp 12 volt unit. Mine came form an old answering machine or something like it. I never throw these things out because they always can be used for other purposes. If you don't have they can be found all over the web or at Radio Shack. Really though if you are going to buy one check eBay for tattoo power supplies. They are under $20 and work great. They also have variable output voltage so you can adjust the wire temperature and in some cases foot pedal on/off switches. This is really nice because it allows for hand free operation.

The wiring is a basic circuit. It is a simple on/off circuit. The diagram below has a couple of optional features. First the pilot light. This can be bought as an assembly, part of the switch as I did or even built manually. The second is the push button/foot switch. If you went with a tattoo power supply this wiring is already built into the power supply. Otherwise you will have to make the switch yourself. I am not going into that here because I don't want to turn this into an circuits 101 course.

The improvements:
The basic table I built has a few issues. It works great for freehand cuts but for precise cuts I need to add a rip fence like the one on a table saw. Make the arm height shorter, maybe 3 or 3.5 inches. This allows for less flex in the wire and gives a cleaner cut. Finally add a stop the arm pivot at 90 and 45 degrees. Getting square or repeatable cuts is a problem without this. The final thing is moving to a thicker gauge wire. This again pulls some of the flex out of the wire giving better cuts.

That is it. Get to building.