math 3d models

**PLEASE NOTE:** This thing is still very much a work in progress - it's currently based entirely on theory and maths! I've yet to get my hands on a sensor to verify that any of this actually works... OpenSCAD files will follow soon, once I've tidied...

Michael Tritle MATH 401 3D Printing October 29, 2019 Complex numbers are a generalization of real numbers. They can be written in the form x + yi where x and y are elements of the set of real numbers, and i is an imaginary number which equals...

... one click equals 0.2mm in height, which turned out to be close. If five clicks only raised it 0.5mm, I would have turned another five clicks. Since the math showed 0.1mm is equal to one click, I was able to get the bed level with a few adjustments.

Update 2: 2019/11/14 - Several places where math wasn't done correctly were found and cleaned up, some code was improved. Switched from PETG to eSun ABS+, (prints at 100mm/sec on my printer, much easier to version rev with half the print time). If...

Instead of doing the math each time, I prefer to record actual current values (_it's 5_). The same goes for Armor and Health, multiple items and powers can modify the Soulgem values. I like having these crucial values readable at a glance. The...

I settled on a 35mm focal length and after some math worked out that the aperture should be 0.26 mm in diameter, giving a F Stop of f/136 in the middle but shooting at f/165 is a nice compromise between an overexposed center or dark, dark corners. I...

Don't worry, an excel sheet is included that performs all the math. You just have to print, measure, and type in the numbers. A caliper is required. Note that calibration is normally not needed for modern printers and calibration cubes are very...

Update March 18, 2017: After multiple attempts to get the angles correct, I decided to do some math to ensure accuracy. Since the GoPro's lens is offset from the mount, the angle for either side must be different. To center the build plate in the...

####Making Sense of the Volume of a Sphere: Have a Cup of Math, Please. #####Three different cups with a volume of approximately 2 fl oz. The volume of a sphere of radius R is (4/3) πR^3. But why? One can certainly use a bit of calculus to find...

It's a resource that teaches to the following Common Core standard: CCSS.MATH.CONTENT.HSG.C.A.2 - Identify and describe relationships among inscribed angles, radii, and chords. Lesson Plan and Activity Pass out these inscribed angle manipulatives...

It satisfies the following standard: CCSS.Math.Content.6.NS.A.1: Interpret and compute quotients of fractions, and solve word problems involving division of fractions by fractions, e.g., by using visual fraction models and equations to represent the...

And, of course, to ThinkFun for designing Math Dice.InstructionsFor a one color version of the game (identical to the original design) print DieGame.stl.For two colors, print DiceGameWhite.stl and DiceGameBlack.stl, merged into a 'dualstruder' print...

Needed an iPhone XS Max case that was minimalist to get me through a week or so and didn't find any suitable options on Thingiverse.\r\n\r\nDownloaded the 360 file for Adafruit's iPhone X bumper, did some math to account for the offsets they used on...

Sorry for the math...designing does have its needed adaptations and opportunities for learning. I'm looking forward to making more HP items soon. Update: 1. Oh me...during the process of making a larger print of the hat, I found an issue with the...

... This version reports a hopefully correct set of gear ratios in the console, depending on how you configure your gearbox. The attached .odt file includes math formulas for reference. ... Please leave comments if errors are noticed or help is needed.

The next step was the math. If I added an arm with a radius of half the distance the saw needed to back and forth, the complete diameter would bridge that needed distance. The saw needed to go 13cm and 7mm back and forth. So the motor's arm diameter...

I've done the math for you and included three designs with different line widths: 0.4mm (standard), 0.6mm (less ideal), and 0.8mm (more robust). Here's a summary table of adopted parameters and printer quality: | Nozzle diameter | Extrusion width |...

Teachers, this could be turned into a lesson showing how those math skills your students are always claiming are no good for anything practical, actually can be applied to something marginally useful for entertainment, or if you're teaching...

Deviation = Math.Abs(AverageZ / (i + 1) - MeasuredZ); if (Deviation > MaxDev) MaxDev = Deviation; double Zup = exec.GetZmachpos() + retractheight; // Calculate the new coordinate for the retract of Z axis exec.Code("G00 G53 Z" + Zup); // Retract the...

I'm just starting out with Fusion 360 and came across a neat trick whereby you can implement conditional logic using math functions supported by the expression builder. The two I use are min and max. Here's a pseudo code example: if (variable_a...

https://www.youtube.com/watch?v=RxBaEiQHzLU Between writing the script and doing the math in LibreOffice Calc spreadsheet, crimping dupont connectors on different fans, scientifically testing different orientations and fan sizes, this has turned...

I tried 0.4 layer height but it requires the gap to be 0.4 between each mask, and the maths don't work - the layer height needs to be divisible by 5mm (thickness of the mask) otherwise slicer rounds up/down the layer height and you'll either end up...

... ARE ABLE TO BUY SHEETS OF FILTER 1'x15' TO CUT SQUARES THAT WILL FIT IN THIS MASK. If my math is correct, out of one of these sheets we could get about 500 filters to fit this mask. ... SO, NO MORE MASKS WILL BE HARMED IN THE MAKING OF THIS PROJECT!

For the d20, I used an ideal numerically balanced numbering system described in this paper: www2.oberlin.edu/math/faculty/bosch/nbd.pdf Base Forms Updated from: https://www.thingiverse.com/thing:4062607 Platonic solids came from Dan Hienzsch via...

Do the math: 80+ quads * ∞ camera angles * ND configuration * optional stuff = an infinite number of STLs to upload.. and they're changing every day. So no, what's uploaded here is 1) out of date 2) not going to have your configuration and 3) bad. ... ...

This is a Math project designed to reinforce student understanding of Surface Area and Volume, allowing them to create and 3D print a small toy for themselves. Students can customize it according to their needs and knowledge base. Overview and...

This is created in response to a math teacher's request for a 3D printable model that teaches multiplication to students in grades K-8. It allows users to model both integers and fractions, based on how they define the whole unit. Example 1: What is...

This object was the final project for George Mason University’s Math 401: Mathematics Through 3D Printing. The subject for this project was projecting from two dimensions to three dimensions, but the only assistance given to us was a set of 3...

The initial GearBug is easy to assemble but also provides opportunities for math and physics lessons as well as design challenges. Objectives • Follow instructions to create a functional GearBug • Demonstrate understanding of an electrical circuit to...

... use the Tower of Hanoi to practice problem-solving skills or simply take a brain break. Finally, the tower can be used to introduce combinatoric puzzles. Whatever your Tower is for, it's a great piece to show how math comes alive with a 3D printer.