james4340 wrote:I did Thermodynamics last year and I found that a 3-d printed box was legal and worked very well.
what did you do with the 3-d printing technology that made it better than any other box?
Nothing.
Did you also try a 3D-printed box or is this more of a hypothesis
Re: Thermodynamics B/C Build
Posted: November 2nd, 2018, 2:47 pm
by CookiePie1
UTF-8 U+6211 U+662F wrote:
Alex-RCHS wrote:
CookiePie1 wrote:
what did you do with the 3-d printing technology that made it better than any other box?
Nothing.
Did you also try a 3D-printed box or is this more of a hypothesis
I kinda see how it would help but then it wouldn't really help because plastic isn't the best insulator, and if you're just printing the exterior box you might as well use acrylic sheets or wood
Re: Thermodynamics B/C Build
Posted: November 4th, 2018, 2:35 pm
by Alex-RCHS
UTF-8 U+6211 U+662F wrote:
Alex-RCHS wrote:
CookiePie1 wrote:
what did you do with the 3-d printing technology that made it better than any other box?
Nothing.
Did you also try a 3D-printed box or is this more of a hypothesis
I didn't, but a thermo box is successful because of its insulating ability; 3D printing has nothing to do with that.
Re: Thermodynamics B/C Build
Posted: November 4th, 2018, 3:04 pm
by JoeyC
3D printing is a really bad idea for a thermo device; the filament (is that the correct term for it? I've been away from 3D printing for quite some time) needed would cost the same as actually buying insulation foam and cutting it into the correct shape. The thermal insulation will probably be realllly bad, and unless you have a good 3D printer and experience, you're likely to run into a great many mishaps while trying to print it.
Re: Thermodynamics B/C Build
Posted: November 13th, 2018, 4:40 am
by Raphael
UTF-8 U+6211 U+662F wrote:
Raphael wrote:
CookiePie1 wrote:
At least its only an invitational. Sometimes it takes a hard lesson to really learn. And you should be happy you got third.
Yeah I should be happy for third place
But the feeling of a chance of getting first place if I just did something simple as slip on googles makes me angry But its ok
I'm kind of surprised they let you do the build portion without goggles... (I know the build portion isn't at all dangerous, but rules are rules)
I feel like they would just disquallify you from the build portion at Regionals/States if you didn't bring goggles, and you couldn't find any.
I did bring my glasses but in the heat of the moment I forgot to put them on
Re: Thermodynamics B/C Build
Posted: November 15th, 2018, 1:21 pm
by james4340
I used a 3-d printed box with walls 5mm thick and it made air pockets that trapped in heat. This also makes it so you know the exact dimensions of the box.
Re: Thermodynamics B/C Build
Posted: November 15th, 2018, 1:28 pm
by james4340
JoeyC wrote:3D printing is a really bad idea for a thermo device; the filament (is that the correct term for it? I've been away from 3D printing for quite some time) needed would cost the same as actually buying insulation foam and cutting it into the correct shape. The thermal insulation will probably be realllly bad, and unless you have a good 3D printer and experience, you're likely to run into a great many mishaps while trying to print it.
My local library has a 3-d printer that you can print for 10 cents a ounce and my box only cost $8 and only lost 10 degrees with a hole over the top of the beaker. It will work. Sorry I have not been on for a while. If you do not have a local 3-d printer that will pay for the filiment this is not a good idea.
Re: Thermodynamics B/C Build
Posted: November 15th, 2018, 3:44 pm
by wxyz
james4340 wrote:
JoeyC wrote:3D printing is a really bad idea for a thermo device; the filament (is that the correct term for it? I've been away from 3D printing for quite some time) needed would cost the same as actually buying insulation foam and cutting it into the correct shape. The thermal insulation will probably be realllly bad, and unless you have a good 3D printer and experience, you're likely to run into a great many mishaps while trying to print it.
My local library has a 3-d printer that you can print for 10 cents a ounce and my box only cost $8 and only lost 10 degrees with a hole over the top of the beaker. It will work. Sorry I have not been on for a while. If you do not have a local 3-d printer that will pay for the filiment this is not a good idea.
What were the volume/time/temp parameters?
Re: Thermodynamics B/C Build
Posted: November 16th, 2018, 2:33 pm
by Creationist127
What were the volume/time/temp parameters?
Regionals: 100 mL
States: 75-125 mL, 25 mL increments
Nationals: 75-125 mL, 5 mL increments
20-30 minutes, 1 minute increments
60-75 degrees Celsius
You can download the rules manual at store.soinc.org.
Re: Thermodynamics B/C Build
Posted: November 16th, 2018, 8:00 pm
by wxyz
Creationist127 wrote:
What were the volume/time/temp parameters?
Regionals: 100 mL
States: 75-125 mL, 25 mL increments
Nationals: 75-125 mL, 5 mL increments
20-30 minutes, 1 minute increments
60-75 degrees Celsius
You can download the rules manual at store.soinc.org.
