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Osu library 3d printing
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Frequently Asked Questions about 3D Printing at The Valley Library
- How much does it cost?
- We charge 16 cents per gram of plastic used. This cost is charged to your ONID account or departmental index.
- We were required to raise the price to a minimum of $0.16 per gram because we were considered by the university to be undercharging for the service. This fee helps pay for all materials and covers some student labor costs. Please email [email protected] with any questions or concerns.
- How long will it take?
- It is best to allow 2 weeks. We usually get things done within a week, but you never know if a machine will break or have other problems printing the file.
If you have extenuating circumstances, you can put that in the comments section of the form explaining why you need the part quickly. You can also email us to check on your place in the queue at [email protected].
- It is best to allow 2 weeks. We usually get things done within a week, but you never know if a machine will break or have other problems printing the file.
- What file types do you accept?
- Files must be STL file type. Most 3d modeling software has Save As or Export As STL option.
- How big can I make it?
- Maximum print bed size is 280mm long x 280mm wide x 250mm tall, so make sure your object fits those parameters.
- What does it mean when it asks for dimensions in the form?
- It is referring to what size the finished product should be. This is in case you designed your object in inches or centimeters instead of millimeters, or if you want the object to be larger or smaller than the size it was designed. We can easily scale models to desired size while keeping everything in original proportion.
If you want your object printed the size it is when opened, you don’t need to fill this out.
- It is referring to what size the finished product should be. This is in case you designed your object in inches or centimeters instead of millimeters, or if you want the object to be larger or smaller than the size it was designed. We can easily scale models to desired size while keeping everything in original proportion.
- What does Percentage of Infill mean?
- This refers to the amount of empty space vs. filled space inside of the object.
- If your object needs to be extremely strong (for example, a replacement couch leg), choose 100% (solid). This is also a good choice if you are going to be drilling holes through the object.
- See below screen shots for what the other fill percentages look like. Green that shows is the empty space.
10% 15% 33% 66%
- What does Quality Preferred mean?
- This is how thick the layers the machine lays down will be. Standard is great for almost everything. If it is something large that you need quickly, “Fast” would be the best choice. If you have small parts that need to fit together and don’t have much wiggle room, choose “Slow.
”
- This is how thick the layers the machine lays down will be. Standard is great for almost everything. If it is something large that you need quickly, “Fast” would be the best choice. If you have small parts that need to fit together and don’t have much wiggle room, choose “Slow.
- What if my file is too big to attach to the form?
- You can email the file(s) to us at [email protected]. Just make a note in the comments section of your submission saying the files have been emailed.
- What should I do if I have a bunch of files to print?
- You can put them all in a zip file and attach that to your submission. If that is too large for the form to accept (over 5MB) you can email it to us at [email protected]. Just make a note in the comments section of your submission saying the files have been emailed.
- How do I find files to print?
- If you don’t know how to make your own 3d model, you can find files that have already been created and made available to all online. Here are some of the most popular sites to find them: https://guides.library.oregonstate.edu/c.php?g=286201&p=1905549#s-lg-box-5825795
- How do I create 3d files?
- Information on various 3d printing software available here https://guides.
library.oregonstate.edu/c.php?g=286201&p=1905230 - Links to online tutorials and training here https://guides.library.oregonstate.edu/c.php?g=286201&p=1905351
- Library 3d printing staff are not trained on 3d modeling, but can help with making sure your design is printable and possibly help with some troubleshooting. Just email us at [email protected].
- Information on various 3d printing software available here https://guides.
- Why did you get rid of ABS?
- For the health and safety of everyone in the library!
- Printing with PLA using a 3D printer released 20 billion particles per minute (p/min), whereas printing with ABS released 200 billion p/min. The 10-fold increase in the number of particles was attributed to the high melting temperature of ABS and requirement of a heated bed. ABS produces a distinctive smell when heated, causing headaches and respiratory and eye irritation in sensitive people. Some studies showed that ABS fumes are toxic to rats and mice: “There is a good chance that ABS-fed 3D printers may be more harmful than PLA-fed printers due to both higher emissions and likely higher toxicity.
” http://pubs.acs.org/doi/full/10.1021/acs.jchemed.6b00745
3D Printing launched at the Valley Library on 3/31/2014. No tuition money was used to purchase the printers. 3D Printers at the Valley Library are open to all OSU student, faculty, and staff.
About PLA Plastic
All other plastics not included in the other categories and mixes of plastics 1 through 6 are labeled with a 7, including compact discs, computer cases, BPA-containing produces, and some baby bottles.
PLA (polymer polylactide) is a plastic made from plants (usually corn or sugarcane) this is also labeled with a 7. PLA plastics don’t contain BPA; no safety concerns have been raised about using PLA plastic with food. Right now, it can be difficult to tell the difference between a PLA no. 7 plastic and a BPA-containing no.7 plastic. Some PLA plastics may also say “PLA” near the recycling symbol. Others may have a leave symbol near the recycling symbol.
To clear up any confusion, the manufacturers of PLA plastic are working with the American Society for Testing and Materials International, a global group that develops standards, to create a new recycling numbering system that would give PLA plastic its own number.
Do NOT cook food in no. 7 plastics that aren’t PLA and avoid using non-PLA no. 7 plastics around any type of food.
Source: http://www.breastcancer.org/risk/factors/plastic, accessed 04/10/2014
Here are some interesting links about PLA and other plastics below:
- Next: Free 3D models >>
OSU Webcams – Valley Library 3D Printer
OSU Webcams – Valley Library 3D PrinterABOUT THIS CAMERA
The Valley Library 3D Printers are for the use of OSU students, faculty, and staff and were paid for by donations.
We have 4 printers that use PLA or ABS filament to build 3D models from digital files. You can learn more about 3D printing on the OSU Libraries help pages.
View Most Recent Full Size Webcam Still
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Astronomers first discovered interacting planets using ground telescopes 9000
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July 6, 2020, 12:45 July 6, 2020, 13:45 July 6, 2020, 14:45 July 6, 2020, 15:45 July 6, 2020, 16:45 July 6, 2020, 17:45 July 6, 2020, 18:45 July 6, 2020, 19:45 July 6, 2020, 20:45 July 6, 2020, 21:45 July 6, 2020, 22:45
- Anatoly Glyantsev
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Artistic representation of the WASP-148 system.
Illustration by Institut d'astrophysique de Paris, Mark A. Garlick.
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Telescope with SOPHIE spectrograph at the Haute-Provence Observatory.
Photo by OSU Pytheas/CNRS/AMU.
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Artistic representation of the WASP-148 system.
Illustration by Institut d'astrophysique de Paris, Mark A.
Garlick. -
Telescope with SOPHIE spectrograph at the Haute-Provence Observatory.
Photo by OSU Pytheas/CNRS/AMU.
Scientists have discovered a system of two planets affecting each other's motion. For the first time, such a discovery was made using ground-based rather than space telescopes.
Scientists have discovered a system of two planets affecting each other's motion. For the first time, such a discovery was made using ground-based rather than space telescopes. This means that it is possible to study the ins and outs of distant planetary systems from the surface of the Earth, which is much cheaper than using orbital instruments.
The achievement is described in a scientific article published in the journal Astronomy & Astrophysics.
Sometimes the gravity of one planet influences the motion of another. In the 19th century, astronomers discovered Neptune due to the distortions it introduced into the orbit of Uranus.
Several similar examples are known in the planetary systems of other stars. But, although mankind has already known about seven hundred systems containing more than one planet, such interactions remain rare.
Meanwhile, they are of great interest to specialists, since they can shed light on the history of the formation of planetary systems and the laws governing this process. Recall that many details of the birth of new worlds remain the subject of controversy.
Now, for the first time, researchers have detected the orbital interaction of exoplanets using ground-based rather than space-based telescopes. This means that it is also possible to study a rare phenomenon thanks to ground-based observations, which are much cheaper than orbital ones.
We are talking about the star system WASP-148, in which, as it turned out, there are at least two planets.
First, scientists discovered the exoplanet WASP-148b in WASP-148. The SuperWASP ground-based telescope helped the researchers in this. This discovery was made using the transit method. Let us briefly recall what it is. When the planet passes between the parent star and the observer, it partially outshines the luminary. These dips in brightness, repeated regularly (on each revolution of the exoplanet), serve as a signal of the existence of an unknown world.
The transit method allows you to measure the period of revolution of the planet and its diameter. It turned out that WASP-148b revolves around the star in 8.8 Earth days and has a radius equal to 0.7 of the radius of Jupiter.
Telescope with SOPHIE spectrograph at the Haute-Provence Observatory.
Photo by OSU Pytheas/CNRS/AMU.
Then the authors observed the star WASP-148 with the SOPHIE spectrograph installed at the Haute-Provence Observatory. These observations were made using the radial velocity method. It registers small displacements of the star caused by the planet's gravity. In this way, the orbital period of the planet and its mass can be measured.
Note that the method of transits and the method of radial velocities gave mankind almost all known exoplanets (of which there are already more than 4200). Discoveries of exoplanets by other means are extremely rare, although they can be no less interesting.
SOPHIE observations confirmed the existence of the planet WASP-148b and made it possible to measure its mass: 0.3 Jupiter masses.
But at the same time, scientists discovered another world near the same star. The new planet, named WASP-148c, has a mass of at least 0.4 Jupiter masses and revolves around the star in 34.5 Earth days.
The authors did not find any traces of it in the "transit" SuperWASP data. It is likely that WASP-148c's orbit is somewhat inclined compared to WASP-148b's and does not cross the star-observer line.
The most important thing in this discovery is the ratio of the orbital periods of the two worlds. 34.5:8.8 is 3.9:1. That is almost 4:1.
When the orbital periods of neighboring planets are related to each other as small integers, this is called orbital resonance. The most common resonances are 2:1 and 3:2, but 4:1 is a relatively rare bird.
Calculations show that planets in such resonance should slightly distort each other's orbits by their gravity. These deviations must be repeated regularly.
Indeed, it turned out that the orbital period of WASP-148b changes slightly. This change is small (about 15 minutes), but it is quite measurable. That is, the worlds of the WASP-148 system were the first planets whose interaction was detected using ground-based telescopes.
By the way, earlier Vesti.Ru told that the orbital resonance in the system could be a sign of the presence of unknown planets in it. We also wrote about the most harmonious planetary system.
