Major site overhaul: resources hub, content migration, new blog posts, forms
- Redesign /resources as sectioned hub with category pages - Migrate 645 Squarespace CDN images to local /images/content/ - Create 9 new news/blog posts with event photos - Fix blog post slugs (rename gibberish filenames) - Rename Design Blog to Design Blogs across site - Remove education page, replace with Platform in nav - Redesign rover repair request form with dynamic rover entries - Add school search combobox to contact, store, and repair forms - Extract shared KNOWN_SCHOOLS data - Make /rover-expansion-3d-printing dynamically pull from MDX - Add related resources sections to product pages - Fix homepage broken /quote links to /store - Store page: sample kit cards, inline quote builder, mailing list opt-in
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Tim Hadwen
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---
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title: "Design Blog: Sumo Flipper"
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date: "2024-01-09"
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categories: ["Design Blog"]
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categories: ["Design Blogs"]
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tags: []
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excerpt: "My name is Binara, and I will be taking you through the entire design process of how I created the sumo flipper attachment. The original task was to create a unique solution for sumo battles. An additional condition is that the rover must not have an"
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featuredImage: "/images/resources/design-blog-sumo-flipper.jpg"
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---
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My name is Binara, and I will be taking you through the entire design process of how I created the sumo flipper attachment. The original task was to create a unique solution for sumo battles. An additional condition is that the rover must not have any expansions (ie. extra microcontrollers, motors, or power sources).
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@@ -19,15 +19,15 @@ Every idea has to start somewhere, so the best way to get inspiration is to see
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The best way to research for sumo is to take a look at robots from many different battles, as well as looking into battlebot designs.
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Existing sumo robot design vary a great deal with some techniques being a great solution for some robots but a poor solution for others. Given this, there are still discernible trends among the winning robots. Looking at these designs, the robots try to have wheels with good traction and downforce to make sure it doesn’t slip.
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Many of these robots also have a ramp at the front with the Maker’s Muse robot going so far as to have a lever arm at the front to flip other robots.
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---
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@@ -35,9 +35,9 @@ Many of these robots also have a ramp at the front with the Maker’s Muse robot
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As with most of my designs, the prototype phase consists of generating a 3D design on Autodesk Inventor or Fusion 360 and then 3D printing it.
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---
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@@ -57,13 +57,13 @@ The first technique experimented was crafting custom wheels for the rover. While
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This wheel has incredible grip and is very very soft. With this in use, a very large force is required for the robot to lose traction.
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*Credit: Crafty Arts*
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#### Clutch System:
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@@ -71,11 +71,11 @@ The point of the silicone wheels is defeated if we simply have them free-rolling
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With the confirmation that clutch bearings work, steel manufactured bearings were obtained with springs to assist the internal clutch. This version worked very well and was implemented into the design.
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3D printed clutch bearing design
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Steel roller clutch bearing alternative
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@@ -87,9 +87,9 @@ The clutch system at the back was also attached to a lever as the wheels cannot
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While the flipper could lift a kg, an issue we came across was that instead of lifting the opponent, the flipper would lift the rover off the ground instead. To combat this, the clutch system was located at the back to provide counterweight, but when the clutch wheels engage, they actually assist in partially lifting the robot off the ground, and descend even lower than the level of the tracks of the rover. This ensures that the rover still has maximum contact, even if it’s been lifted off the ground.
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---
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