Drying box plans

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Mongo Mel

A Fixture
Joined
Aug 19, 2003
Messages
862
Location
Pittsburgh, Pennsylvania
Hello all,

The other day, J. L. Segundo had asked me for plans for building a drying box. Since I had built mine “on the fly”, I had none to give him. So what I’ve done is to make a sketch with basic dimensions for mine. To go along with the sketch, I’m adding some instructions that I hope will supply all the necessary information needed to make your own drying box.

Okay, the first thing I need to do is to explain a little bit about my drying box. For those who aren’t familiar with what a drying boxis, it’s simply a wooden box with a light bulb inside of it. It's used to speed up the drying times for when painting figures with oil paints. Using it, most oil paints dry in about 24 hours. Some colors have dried in only 6 hours while some can take longer but most have dried in less than a day for me.

Also, I’m not a woodworker. This is pretty crude looking in person but it works well for my purposes :lol: .

My box started out as a transport box for taking my models to shows without their getting damaged. That’s the reason why it’s made so stoutly. Were I to make one that was just to be used for drying paint, I’d probably try to make it out of lighter weight materials. But that would mean using other methods to construct it than those I’m going to describe here.

I made mine out of scrap plywood that I had lying around the house. The top, bottom and 2 end pieces wee made from 1/2” thick plywood. The back was made from 1/4” thick plywood and the front, including the door are 3/8” plywood. The advantage to the thicker wood is that it allowed me assemble the box using wood screws driven into the end thickness of the pieces. Thinner pieces would probably require the use of small nails instead of the screws.

To keep the plywood from splitting when inserting the screws, I would line up the pieces and drill a pilot hole though them both. This would also ensure that the holes would line up when I attached the pieces with the screws. Pilot holes are made using a drill bit that is a little smaller that the diameter of the screw. Then in the “loose piece“ I would enlarge the pilot hole so that the screw will pass through it freely and then countersink it on the outer face to allow the screw head to be flush or below the top of the wood when assembled.

Once the top, bottom and 2 end pieces were assembled, I attached the back piece using nails. I tried to get the box as square as I could before attaching the back. The back piece was not a perfect fit to the box so I had to use my orbital sander to clean it up to match.

To make the door, I just cut a piece the size of the box and then cut it into 3 pieces as shown. The top and bottom pieces were attached. The door was then laid in place and 2 hinges were screwed on the bottom of the door and a latch was screwed on the top. You should be able to find the hinges and the latch at any hardware store. They don’t have to be very big or strong pieces. I also added a handle to the top of mine for carrying it to the shows.

To mount the light bulb, I used a ceramic base from the hardware store and attached it to a piece of plywood. This allows me to position it anywhere inside the box without risking touching live wires. I use a 60 watt light bulb. I didn’t put a switch on it but it would be pretty easy to do so. I just unplug it what I’m finished using it. This set up has worked well for me and doesn’t seem to have any bad effects on the resin figures. If the figure is injection molded plastic or has thin resin or white metal pieces, I just make sure the bulb isn’t too close to the figure.

Well, that’s about it. If I’ve been unclear or have left out anything, just let me know and I’ll try to answer any questions you have.

Craig
 

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Craig,
Thanks a million! I'll get to building one ASAP. Just started "The Man with No Name" Andrea & decided to paint him in oils. Started the lower torso & dried him off under a reading lamp.

Thanks Again,
JL Segundo Jr.
 
I quite often use a hair dryer to help along the drying process. The crock pot is my preferred method with oils
 
Craig thanks a lot for taking the time to put that together. The light box would also work to speed along the curing of putty.~Gary
 
Thanks for that Craig, I'm sure a lot of people will find this invaluable (nice diagrams too).

Gary's right, one of these could definitely be used to speed-set putty as well - if a good blast with a hairdryer is enough to accelerate the hardening this should work really well, you could probably cure MS in about fifteen minutes.

Einion
 
I used Craigs photo's from Armorama to build my own box. That was a year ago!! :eek:

I have to say that this was a key reason why I am still using oils. Get them dry in 1-3 days and dead flat (except for pruss blue :lol: :angry: )

Keith
 
hi everyone,
when using oil paints you can always use alkyd resin medium to hasten the drying of any and all oil paints (including water soluble oils) - all oil paints respond well to alkyd resin medium (Gamblin brand is known as Galkyd), and drying is acomplished in less then 24 hours - it may be that with the dry box it would be plenty quicker. Additionally, these alkyd resins have a characterisitc of 'pulling the paint of the brush' once brush touches the wet surface being painted ( for lack of better wording). Also one should always use the non-turpentine, odorless mineral spirits that help the paint drying faster (high evaporation rate) and are much less harmful that turpenitne. Finally, our tube oils are quite thick (buttery) when compared with Old Masters paints, for the modern oil paints have been develped for the modern style of painting (the impasto and other knife techniques) it follows then that the mineral spirits and aklyd resins(as oposed to linseed oils and other oils) are very useful to make the tube oils lees buttery (saves the paint!), more fuild, yet also stronger and more resistant to damage - which makes them more useful for this hobby.
 
Originally posted by dario966+Jul 4 2004, 10:18 PM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (dario966 @ Jul 4 2004, 10:18 PM)</td></tr><tr><td id='QUOTE'>when using oil paints you can always use alkyd resin medium to hasten the drying of any and all oil paints (including water soluble oils) - all oil paints respond well to alkyd resin medium.[/b]

Dariusz, alkyd medium does speed drying but tends to increase gloss, which would be a real killer for most modellers.

Very modest amounts of a metallic dryer might be a better idea if one wanted to accelerate the oxidation process further, but there may be problems with darkening over time. Using heat is the best way to speed-dry oil paints in our context since it involves no additions that may prove detrimental down the line; soaking out excess oil for any oily paints is also advisable.

Originally posted by dario966@Jul 4 2004, 10:18 PM
Also one should always use the non-turpentine, odorless mineral spirits that help the paint drying faster (high evaporation rate) and are much less harmful that turpenitne.
You're right about the toxicity but low-odour solvents (OMS) have much slower evaporation rates than turpentine. Turps evaporates faster than almost any mineral spirit and ALL versions of OMS. But since turps also tends to increase gloss most modellers use mineral spirits.

<!--QuoteBegin-dario966
@Jul 4 2004, 10:18 PM
Finally, our tube oils are quite thick (buttery) when compared with Old Masters paints, for the modern oil paints have been develped for the modern style of painting...[/quote]
Handmade paint can actually be very short in actual fact - easily the equal of high-pigment-load paints manufactured today - it was purely by choice that painters made their paint 'soupy'.

As for the strength and resilience of oil paint films, although it's not really relevant in the hobby, the most stable films are made by pigment-rich, oil-poor paint.

Einion
 
Hello all,
Thanks for the feedback.

J. L., you're welcome. I hope it helps.

Guy,
I've used a hair dryer to speed dry washes but never thought of it for drying paints. Thanks for the tip. I read about the crockpots but since I already had the box made, it seemed like the easiest thing to do. Plus, because it's so big, I can fit a couple of figures in it at one time.

Gary and Einion,
I've heard of that but never think of trying it. Going to have to remember that one for the next time I use putty. Thanks!

Keith,
Thanks for letting me know about that. I'm glad it was useful for you :).

Dario,

I have a bottle of Winsor Newton's Linseed Drying Oil that use with my printers inks. But I don't like thin out my oil paints when painting. I like how they will stay where I put them when I use them straight from the tube. I'm guessing that I may have added too much thinner to the paint when I've tried it in the past. I've read that there are some thinners that can add a sheen to the paint when added. I'm betting this would be useful when painting leathers. Do you (or anyone else) know more about this? I'd appreciate learning more about this trick.
Thanks again guys,
Craig (y)
 
Hi Craig, if you want to alter the sheen of your oil paints during the painting process adding oil and/or a medium of some kind is the way to do it. But since this will increase transparency it might be a problem, especially given the relatively low pigment loads of some commercial brands. Probably the best additive if you want to try the technique is linseed stand oil, it should be easily found where you buy your paints and W&N make a version. It's much thicker than normal oil because it has been partially polymerised so you shouldn't have any trouble with your paint not staying where you put it :) The consistency varies but it should be more viscous than honey.

I think myself that the best route is to paint the entire figure as you would normally, baking to speed-dry and create an overall matt finish. Then you can selectively apply gloss to boots, belts, painted surfaces etc. much like acrylic or enamel painters generally have to (if they bother!) You can use Liquin for this, or your Drying Linseed Oil, but for ease you could just use an acrylic gloss, thinned with water - Kleer is good and you might already have some! These won't discolour over time as oils and alkyd mediums do and since they dry almost immediately you can assess the final effect much faster and apply a second coat if necessary to get a higher gloss. If something goes wrong you can clean off acrylic overcoats with alcohol or ammonia and if you're gentle it shouldn't harm the underlying oil paint.

Another option is to use a combination of these techniques; instead of just using a clear gloss on the matt paint you would glaze. For a leather belt for example take a drop of oil or Liquin, a touch of turps and a little Burnt Umber maybe and brush it over the belt, this will give a 'richer' finish. And if you apply this only to the flat of the belt and not the highlighted edges it will improve the illusion of wear and three-dimensionality.

Einion
 
Hi all, the drying box is a great idea and I have used it for some years when sculpting. It means you can work on a piece, dry it, then work some more. Obviously the bigger the piece the longer it take but most work I have done is hard in 15 minutes or so. One word of warning however, work with plasticard of any sort will soon be reduced to a sticky mess if left too long :angry: and as a result I avoid this material and stick to various sheet metals. :lol:

Regards Callum.
 
Hi all
I use a three parts Odourless Thinner to one part Liquin as a painting
medim on flats it drys quickly and leaves an "attractive sheen" rather than gloss

Although I have never used a drying box I find the plans interesting.
Here is an in progress shot of a flat to illustrate.Please bear in mind the flat is
30mm

Frank
 

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