PSA- why you NEED a proper respirator when spraying Sealants or paints.

Dear friends, Let me show you guys why respirators are VITAL no matter what you are spraying.

I have a shop where I do my spraying work. It has a filter and a fan that sucks the air out of the spray chamber, filtering as it goes.




This is a few sprays of a paint onto some doll parts. You see that square in the wall? That is the filter. It was white when I started this. That is what was pulled out of the air while I sprayed, the can was never aimed at the filter. 

That's what ends up in your lungs when you inhale aerosols. it just shows up here because I was using a paint which has a strong color.

Please, PLEASE use a properly fitted and rated respirator. You only get one set of lungs.

Cerra Canna Ceramic Knives- What and Why?

What is a Cerra Canna ceramic knife, and why would a modder want it? Is it like an Exacto or sharp craft knife?


Cerra Canna ceramic knives are very different from an Exacto, in that besides being made of ceramic, they are incredibly hard to cut yourself with! Don't get me wrong, I love my Exacto knives but they do not harbor similar feelings for me or my thumbs. Owch. I love my ceramic knife set. The "blade" is really about as thick as a coin, and it's the cornery edge of that thick blade that is the actual scraping and carving edge. They come in a few shapes, and I'd recommend getting at least the one straight flat one.

I know it's $31.00 for a simple hand tool, but honestly, I'd hand over my Dremel before I gave up this little thingy right here.

When you carve with a ceramic knife, it's a lot like peeling a vegetable. You kind of scrape with it and smooth the little bevels each stroke causes, and it's a good way to remove mass without making too much flying dusty mess. You still have to wear a HEPA-rated mask and clean up your dust carefully, but it's way easier to clean up when it's not a fine powder all over everything in the room.

You don't have to be a serious drastic Modder to benefit from one of these, either. This scraping method of carving is very good for smoothing seams you intend to sand. (Shown Above) It can help you get the rough part of the seam off before you start smoothing it out and finishing it with high grit sandpaper.

The Grindbox - Resin is Toxic

Resin dust is like silica, coal dust or other things tiny, particulate and inorganic- once it gets into your lungs, it never comes out. It can cause cancer like Mesothelioma, or simply Miner's Lung just by being in there. Cancer can be fought by horrible chemicals, but there is no way to cure Miner's Lung. It is a slow death sentence.

Sounds dramatic, but that's the truth. Lots of things that we deal with every day can totally kill you if you do something stupid, and resin dust is no different. Arc welders and industrial power tools are just as deadly, but the right equipment makes them safe. With the right precautions, you can make resin safer to work with. One vital way is to wear a properly fitted respirator of N95 rating or higher and make sure it is always fitted and has fresh filters. There are lots of ways to keep resin dust out of your environment and under control.

What I have for my setup is a thing I've been calling the Grindbox. (Pictures coming later!) It's like a sandblasting box used industrially or a chemical hood, except it's built out of hacked together parts and caulked foamcore board because I couldn't be bothered to try to cut wood in an apartment, and wood is heavy. Metal was out of the question. I plan to post images of the thing to my blog eventually but I'd recommend building this thing to serious modders only, since it takes a lot of work and buying a dedicated shop vac and expensive HEPA filters- Also, I have not yet perfected the design and cannot in good conscience vouch for its efficacy yet. I still wear an N95 mask while working with it, just in case. (Mesothelioma is a horrible way to go. Not for me, no thank you!)

What the Grindbox is made up of is a big ol' box with a wide, tilted lid on top that has a panel of clear acrylic in the lid so I can see what I'm doing, and big sleeves and gloves that are caulked into their holes and extend into the box. The gloves are rubbery non slip gripper things that help me not drop things when I am working with the Dremel and they are thick enough to protect my fingers when the toolbit slips accidentally. (Never work with a Dremel without gloves- we like our fingers' flesh!)

The lid is sealed by velcro straps to hold it tight shut when I am working in the box. The box has an air intake made of a hole with HEPA filter over it caulked to the side, which I will have to replace periodically. The air outlet is a caulked on funnel in the opposite side, to which has been sealed a vacuum hose attachment. This is connected to a just-for-this Shop Vacuum that has been fitted with HEPA rated filters that also have to be regularly changed, but this thing sucks up all the dust and shavings from whatever I work on inside the box and does not allow particles back out into the air.

There is also a hole in the side of the box to allow me to place a Dremel in the box, then run the cord out of the box. This currently has a valve-like sealing around the cord made of layers of rubber and Gorilla tape, but I'd like something less kludgey eventually. Currently the Dremel just kind of stays in the box and I open the lid to put new bits in the box, then close the box promptly and use my gloved hands inside it to change Dremel bits.

I am still perfecting the whole thing but it does make it possible for me to do lots of stuff I could never contemplate doing in an apartment. I wear an N95 mask when I use it anyway, and have air purifying filter fans running in the studio pretty much all the time just to be extra safe.