Sreyas Krishnan
16 posts

Run Ralphie Run – A Mechanical Buffalo

Sreyas Krishnan
2016, Post 13 - 2016
Description: This project is a 3D-printed kit for a CU Buffs themed toy. Once fully assembled, the user can turn a small knob to make the legs move back and forth. Thingiverse: http://www.thingiverse.com/thing:1527702 Presentation Video: [PLACEHOLDER] Project Blog Posts: Conceptual Design – https://www.aesdes.org/2016/03/02/mechanical-buffalo-conceptual-design/ Constraints – https://www.aesdes.org/2016/03/07/mechanical-buffalo-top-5-constraints/ Update 1 – https://www.aesdes.org/2016/03/16/mechanical-buffalo-update/ Update 2 – https://www.aesdes.org/2016/03/29/mechanical-buffalo-progress-3-29-16/ Update 3 – https://www.aesdes.org/2016/04/04/mechanical-buffalo-4616-update/ Update 4 – https://www.aesdes.org/2016/04/12/mechanical-buffalo-4-13-16-update/ Final Report Part…

Mechanical Buffalo – 4-13-16 Update

Sreyas Krishnan
2016, Student Work
3 Comments
Ralphie IV lives!!!!! *MIC DROP* *** Ralphie V is currently printing. In real life, the current Colorado Buffalo is Ralphie V. Therefore, this is the final design iteration :). I have made some minor adjustments to improve the toy’s ability to be assembled. As you can see, I’ve added arrows to depict the correct orientation…

Mechanical Buffalo – 4/6/16 Update

Sreyas Krishnan
2016, Student Work
4 Comments
After a lot of work and frustration, this project is REALLY close to being finished! *** Ralphie III In order to get the four-legged, hooved animal gait mentioned in my last update, I decided to use a gear train on Ralphie III.   After selection locations for the three gears, I placed circles at each gear and…

Mechanical Buffalo Progress 3-30-16

Sreyas Krishnan
2016, Student Work
No Comments
Progress: Ralphie II works well, though I accidentally broke off a small piece of it and replaced it with a bit of tape. Here’s a small animation: Buffalo Snail! Problems: Progress on Ralphie III is going much slower than expected. I have decided that I want the buffalo’s legs to move in a somewhat natural gait.…

Mechanical Buffalo Update

Sreyas Krishnan
2016, Student Work
5 Comments
“Ralphie I” was just a simple snap fit box. See: http://www.thingiverse.com/thing:1384028 “Ralphie II” is a snap fit box with four movable legs. “Ralphie III” will integrate the mechanism that moves the legs. The internal ends of each leg will be modified to incorporate this mechanism. *** Solidworks Ralphie II: Printed Ralphie II: Gold PLA print at…

Mechanical Buffalo – Top 5 Constraints

Sreyas Krishnan
2016, Student Work
1 Comment
3D-printing only (DIY kit for Thingiverse) No fasteners (all parts must align or lock together without fasteners) Print Time (2-4 hours per prototype, so I can only cycle through a couple of iterations per day) Material properties (must make design considerations based on one type of filament – eg: a snapfit feature designed for PLA may not work for ABS due to…

Mechanical Buffalo – Conceptual Design

Sreyas Krishnan
2016, Student Work
8 Comments
After considering several possible ideas for dynamic, fully 3D-printed toys, including things like transformers figurines and twisty puzzles, I have settled on creating a mechanical buffalo crank toy. The buffalo will have moving legs, at minimum, that will be actuated by a crank to make it appear to be running. I will ultimately create a printable kit with…

3D-Printed Transformer/Puzzle Inspirations

Sreyas Krishnan
2016, Student Work
6 Comments
Basically, I want to make a completely 3D-printed toy (for children or the young at heart!) that is capable of transforming from one configuration into another through simple manipulation (twist, push, pull, etc). The most difficult aspect of the project will be designing the snap-fit/sliding/rotating features that allow the transformation to occur. This will surely require lots of test prints,…

Sreyas Krishnan Aspirations

Sreyas Krishnan
2016, Student Work
2 Comments
This semester, especially with my final project in this class, I want to hone my skills as a CAD/mechanical designer and 3D-printing enthusiast to make a popular, if not featured, 3D-printed assembly on ‘Thingiverse.’ I started getting into Thingiverse a little bit last summer and a few people have noticed my work, but it would…

Sreyas Krishnan Skillset

Sreyas Krishnan
2016, Student Work
1 Comment
Solidworks (strongest engineering skill for sure, 7 years of project and industry experience) 3D-printing (have my own printer at home, have access to makerbots/lulzbots in IdeaForge) Machining (lots of experience with mills, lathe, saws, etc.) Music Production and Sound Design (one of my strongest overall skills –> https://soundcloud.com/sreyasmusic) Microcontrollers (sBrio/Labview and Arduino) Circuitry (comfortable with soldering and…

Not sure what this is quite yet….

Sreyas Krishnan
2016, Student Work
6 Comments
…But it was quite painstaking to make. It’s been more about the process than the result so far. When my mind is racing, which happens fairly often, I take comfort in doing repetitive activities. Sometimes, that can be as simple as chewing sunflower seeds or tossing a tennis ball in the air. In this case, it was…

“Retro” architecture

Sreyas Krishnan
2016, Post 1 - 2016
3 Comments
In modern architecture, the retro-style appears when brand new buildings are built with the same features (brick facades, roof materials, etc.) as the older buildings that surround them. The time difference between the new and old buildings is often nearly a century. This aesthetic instills a sense of oneness/homogeneity and nostalgia to the region in which it is applied. Modern baseball stadiums…

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