Monday, April 30, 2018

Working with Haru

Apparently I have not posted anything here for almost a year, so the previous post was kind of out of order. I should say a few words about casting dolls through the Harucasting service (which was nothing but amazing experience).
After casting my first doll at home in February 2017 I started looking into services that could do it professionally, as I did not have time nor energy to do it myself. I have been following Haru on Flickr and they seemed to work very close with the customer and seemed to be really transparent about their work. You can find tons of casting process pictures on Haru's Flickr and the approximate quotes for service for different sizes of dolls  and resin colors and ordering information on Haru's website (https://blog.naver.com/haru_resin), which is really convenient. I researched a few other casting companies and none seems to have this type of information readily available, you would have to contact the company first and get the quotes and casting process info on case by case basis. I guess Haru's transparency and abundance of pictures of their work was the selling point for me.
I have nothing to compare to, since I have not worked with any other company before, but the communication was very prompt and easy and the turnaround time of work was very reasonable. I shipped the prototype in mid-April 2017 and received my 10 dolls back in first week of July.
All in all it was a super fun experience and I would highly recommend Harucasting to anyone looking into casting dolls or doll parts.




Thursday, April 26, 2018

Cleanup


I've decided to throw out my first mold set. I have not touched them in a year and I doubt that I will use them again in the future. They served me well, but I do not want them to take space any more. Here is a picture of them and the one and only doll that they were used for, maybe someone will find them interesting or get some ideas for their own mold design. I felt like I could have planned them better and made them more neat, but after fiddling with them for a few months I also realized that I really dislike working with silicone in general. I may make some small molds for eye bases or props in the future, but it is unlikely that I will try to cast full doll parts again.

I've started working on another doll, so far a have a creepy disproportioned model in Sculptris. I will post a few progress pictures soon. I think I would like her to be Pure Neemo sized, 22 - 25 cm tall, but curvy and bobble-headed, with small feet and small hands. Cat ears may be involved.

Tuesday, April 11, 2017

A really long post about the cost of making your own BJD

I decided to make a list of all the materials that I have used to make my doll. I am curious how much did it actually cost and I think someone also may find the list of materials useful. There are many other ways to make a doll, this post is about what worked for me.


Design stage:
Is free! :D You can design your doll on a piece of paper, this process will only cost you whatever time you put into it. I drew a 2d image of the doll in SketchBook app on my tablet and the 3d model in Sculptris on my computer. Having a drawing really helps with 3d modeling later, especially if you have never sculpted in a 3d modeling program before, as you can put the drawing and model side by side to check sized and proportions. My 3d model ended up looking  different from the drawing, but the sizing and overall appearance was close.
The hardest part was using Blender to cut the model and create joints. Sculptris is amazing and easy program to learn, but unfortunately it lacks any features needed to make separate doll parts, so you will have to use some other program to cut up whatever you design.
Overall cost: Software - free (any digital drawing application, Sculptris, Blender) + cost of your time learning the software and using it to model.


Prototype manufacturing:
I used a PrintrBot Simple with heated bed to print all parts of my doll at home. I printed the torso and head parts in halves and glued them together, this way I did not have to deal with the support material and the printer produced nicer surfaces, but I did have to even out the seams. Everything else was printed in one piece and some support material had to be removed. The main disadvantage of printing things at home was that even with 0.2 mm nozzle our printer does not really print in resolution high enough to produce smooth surface. The parts had almost spongy texture and this obviously created more work, sanding took a long time. The main advantage of printing at home is that I could try different scale to see how big I wanted the doll to be and did not have to wait days for parts to be shipped to me from a printing service.
The sanding was much harder than anticipated. I have never sanded many tiny plastic pieces to smooth finish and did not really know how to do it right. I used 2 cans of Rustoleum Automotive Primer Filler, 2 cans of Tamiya fine Surface Primer on top and sandpaper grades ranging from 400 to 1000. I actually tried many different types of sand paper, I think 3M softback sponge and Mr. Grinding Cloth were my favorite. And I have only found out that 3M sponges come in much finer grit when I was mostly done with sanding.
Overall cost: PrintrBot Simple costs about $700. You can buy a smaller Play model and attach the heated bed, which should cost about $500. Spool of PLA filament - about $20. Rustoleum $5x2 = $10, Tamiya primer $12x2 = $24. Mr. Grinding Cloth $6x2 = $12 (2 sets of rough and regular mesh), 3M flexible sanding sheets $5, 3M softback sanding sponge $5.
PPE: respirator with OV cartridges $30, dust masks $7, glasses $7, latex gloves $8.
So assuming that you do not have access to a printer, the total cost with PrintrBot Play would be $628. If printer and filament are accessible to you, sanding and PPE would cost $108. I may also add a cost approximation of printing through Shapeways if I find time to do a quote. Add cost of your time to set up and supervise prints (if not printed through a service), cleaning up support material and hours of sanding loose doll parts.


Casting:
Gets really expensive! :D I cast my doll essentially to see if it was possible to do without a compressor and a pressure pot. The answer is yes, but not for distribution. After fiddling with my molds I eventually managed to produce a singe doll that did not have giant bubbles in the most noticeable places. She does have lots of embedded bubbles and cavities and I would not be able to sell dolls in this quality. I however do enjoy styling, dressing and photographing her, so she does live a full life of a loved ball-jointed doll regardless of all her flaws.
Overall cost:California Air Tools 5 gallon pressure pot costs $214 on Amazon. A pancake compressor would cost about $120.
I used 4 kits of Smooth-On OOMOO 30 silicone $25x4 = $100. Release agent $17. Craftsmart modeling clay $3x2 = $6. Silicone is cheaper to buy by gallon, but it also will eventually expire once opened, so I decided to buy smaller pint kits instead as I was not going to make all the molds at the same time.
Alumilite Amazing White resin kits $24x2 = $48, dye $5x3 = $15. I did buy 3 different dyes thinking that I will be casting rainbows and unicorns, but it will take me a while to go through all this dye now that I know how much work it takes to cast anything.
So if you are like me and just want to stubbornly try to cast your prototype without a pressure pot, it will cost about $186. Doing it right would cost about $520. Add time for assembling individual two-part molds for every doll part, pouring and curing silicone (OOMOO 30 takes 6 hours) and pouring resin.


Miscellaneous tools and items: you may find some unexpected applications for everyday items. I used a lot of shot size paper cups for mixing silicone and resin, popsicle sticks, toothpicks, coffee stirrers, straws, free measuring syringes from pharmacy, cardboard, lots of newspaper and paper towels. Many people also use lego bricks for building mold walls. Luckily you can buy these by weight on ebay!


In the end if you have access to 3d printer and do not plan to distribute your doll, you can make one for about $294. If you have to buy a printer and want to be able to produce quality casts, it will cost about $1148. This cost estimation is for a 17 cm single-jointed doll. The cost will go up depending on the size and complexity of the doll.


Conclusion?
After looking at all the materials and the amount of work it takes to make a BJD, it seems the real expense is the time needed to learn how to use the software, tools and all the materials. I have a regular day time job, so my doll took me a year and a half to make. Even though doll making can get expensive, occupies obscene amounts of time and can be pretty frustrating when things do not go right, it is a very satisfying experience for an obsessive maker.


Monday, March 27, 2017

Waiting for primer again

I ran out of Tamiya primer and had to order another can. I think I have finally figured out that instead of spraying one layer and sanding it off I should have sprayed 2-3 layers and then GENTLY touched it with sandpaper. Oh well, maybe next time will be better :'D

Monday, March 6, 2017

Found some really fine flexible sand paper/mesh (Mr. Grinding Cloth) that comes in 400, 600, 800, 1000, 2000 and 3000 grades. Got very excited because I really needed something flexible and fine grade to finish the prototype. Ordered it from the hobby store on Friday. Turns out the hobby store ships on Tuesdays and Thursdays and it will be coming from Washington. Estimated date of arrival 3/14/17. Moral of the story: do not order half asleep at 6 am in the morning and read where you are ordering from XD

Thursday, February 23, 2017

First Mauri ever is done!

Mauri is complete, I took some pictures past weekend. She has the best pair of eyes I have made, they came out really neat and even. I think I finally figured out how to make decent glitter eyes, the trick is to first cure one transparent layer of resin with glitter in it and then add second layer with pupil. This way the glitter particles stay behing the pupil and do not float to the surface.
I am polishing the master sculpt once again, some spots were scratched during mold making. I am using Tamiya fine surface primer over Rustoleum and the texture feels more smooth, but I have not sanded it yet, so I cannot compare the two. I'm worried the head may be too complex to cast in a single piece mold like Haru does it, but I just have to finish priming, take some pictures and see what happens. Worst case scenario I will have to modify and prime a home cast resin head to make a different latching mechanism, which should not be too bad.


Monday, February 13, 2017

Last mold, starlets, eyes, outfit, etc.

This weekend I finally have made a functioning mold for the left hand and have cast both hands. They came out right the very first casting, it was such a joyful demolding. I'm starting to think that maybe this whole casting thing is not for me... All the sticky gooey mess, expiring silicone, mold halves stuck to each other, awesome toxic release agent, BUBBLES in the mold surfaces. I am thinking about other dolls I may want to make in the future, but I cannot imagine remaking 15+ two-part molds ever again. But who knows, I may change my mind by the time I have another prototype in my hands :/
I also made another outfit and a pair of glitter eyes. Unfortunately I scratched the faceup while changing the eyes, so I had to touch up the stars on her cheek. I want to take some pictures of her in daylight, but that will probably have to wait until the weekend.


Monday, January 9, 2017

Kinda got tired of the constant struggle with bubbles and took a break for a few months. Unfortunately the faulty molds and bubbly resin are still here after almost a half a year and did not magically fix themself. I finally have enough parts with small bubbles to make one whole doll. Well, almost. I still have to remake a mold for her left hand...
I'm thinking to cast her through harucasting. I am not sure if i have the resources (time) to try it all over with a pressure pot, and without pressure pot it does not seem to go anywhere. I have to cast every part 3-4 times untill it comes out relatively bubble-free. Too many bubbles, too little progress :(
I made some clothes and a faceup for the one whole Mauri I have so far and I love how she came out. Need to make her some socks and shoes and she will be complete.




Monday, August 1, 2016

Junk casts

A lot of work still ahead, but at least here's  progress. Purple, bubbly progress...


Thursday, June 2, 2016

CASTING!11

I'm finally casting parts! So far I have 4 functional silicone molds and I have cast feet, calves and thighs. The hip joint mold either must be slightly modified or cleaned, or I should try injecting resin with a syringe, the resin just doesn't flow right when I pour it. I will post some pictures of the parts I cast so far after I clean them a little.
I find it very encouraging that there has not been too many bubbles, I was afraid it was actually impossible to cast decent parts without a pressure pot, but it's working ok.
I can't wait to cast the whole thing!

Sunday, April 17, 2016

Priming and sanding

As it turned out priming and sanding takes forever. But I am really happy that I am finally using the primer! I really dislike doing anything with clay, so I was looking forward something different to do after all the necessary clay modifications were done. I still need to add a little peg inside the head to latch to the bottom of the head back, but the magnet holders on top of the head and the head back are done and the feet and hand sockets should not need any further modification unless something breaks.
I guess one of disadvantages of printing all the parts at home is that the surfaces are still pretty grainy, even with the 0.1 mm hot end tip. After two light layers of primer and some sanding she looks like she is made of some spongy material. I am hoping to start the awesome mold making process this week, but we'll see how sanding goes.



Tuesday, April 5, 2016

Almost done printing!

Just the right forearm (third iteration) left to print.... I'm adding clay to reinforce the joint sockets and modify the elastic slots. I also need to add a structure inside the head and the head back to hold the magnets, right now the head back is held by two sided tape... Just want to use the primer already and cast :)




Saturday, March 26, 2016

Still printing...

I have printed all the parts, made some alterations, re-designed and printed again the legs, sanded everything and made some more eyes... I am re-designing the arms and will need to print them again too. Both legs and arms had issues with joints, they were placed too deep and as the result the arms and legs did not print well, the joint socket was too thin and kind of jagged. For some reason it is really difficult for me to place the joint ball correctly. Probably because I have no idea what I am doing XD
Below is the picture of the first print. I was really happy she could actually stand on her own :)


Thursday, March 3, 2016

Printing something!

Holding some physical part of the project suddenly makes the project so much more appealing. Even if the part is really rough, made of crappy green plastic and not scaled right.
This week I have printed a hand of my Sculptris model (actually I printed 3 right hands, using different filament, hotend tip and scale...) and despite being green and fuzzy they look awesome. I will post pictures soon. I also finished the head, meaning both the face part and the head back have been exported in .stl format and are ready to print. In fact the head back is printing as I am typing this.
Since we (my fiance Kevin and I) have swapped the hotend tip for a smaller one, the prints are now taking four times longer to finish. The head back is going to take 2.5 hours and the head will take 6 hours. I may try to print it tomorrow after work. I'm not really sure if swapping the hotend made a significant improvement is resolution, but I guess it kind of makes me feel better knowing that I'm squeezing the best performance I can get out of our little Printrbot Simple...
I'm hoping to prime the head on the weekend and maybe print some other parts.
Overall it has been a pretty exciting week!

Sunday, February 21, 2016

My first creepy Sculptris model

Sooo I feel like I am mostly done with modeling, I may touch up some parts, but I don't think I can do much better than this. She has arms, legs, torso, and head, pretty good for the first try, right?? :)
I sculpted the overall body shape first and then added spheres where the joints will be. Taking into account how much work it took to sculpt her and all the cutting and separation of parts that I still need to do, I decided to try simple single joints first.
Below are some pictures of the work in progress. Next step would be to import the model in Blender and separate all the parts.


Wednesday, December 30, 2015

Mauri

I have not made much progress since August, aside from another sketch. I begun sculpting (literally yesterday) and I will add some screenshots of whatever my sculpting yields.
I decided to skip the tail and wings for now and focus on the required limbs instead. I would like her to be about 16 or 18 cm tall, have single-jointed knees and round double joints at hip, so the latest sketch is not really accurate either, but here it is.

Sunday, August 30, 2015

Sketching Persimmon

After being in the hobby for about a year I have decided to make my own BJD. I'm mostly driven by desire to try some new arts and crafts project and the fact that I have a little free time that I would rather invest into something creative than reading Google News... (I have a Google News addiction... I hate it...)
So here is a sketch of my ambitious project. I am not sure yet whether the tail and wings will stay, I suspect just making a decent looking body with limbs and head may be challenging enough...
I hope to design her in 3D sculpting program, print and polish all parts and use that as the master for making silicone molds. I'm really curious to see how she will come out :)