October DealsAmazon USOctober deal check: compare before you payAmazon US: current deals, useful picks and tech finds.Check DealsPC HealthRecommendedCrashes, freezes, slowdowns? Check your PC nowSpot repairable issues before they interrupt work.Check PCOctober DealsAmazon USDeal season is back - check today's better picksAmazon US: current deals, useful picks and tech finds.See Picks×
Skip to content
Bettesworth Construction
3D Printing

A Muesli Machine for Makers: Build a Servo-Powered Cereal Dispenser

Make:’s DIY muesli machine uses a button, micro servo, and rotating bucket to dispense cereal. Here are the parts, build sequence, and limits to know.

By Bettesworth Construction Team 3 min read
Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Make:’s muesli machine is a DIY, button-operated dispenser: an Oxocard Connect controls a micro servo that rotates a small bucket to collect and tip out cereal or another snack. It is a maker project, not a ready-made appliance, and its results depend on the size and shape of what you put in it.

The build below follows Thomas Garaio’s project, published by Make: on April 18, 2025. Read the original tutorial for its illustrations and full build details.

How the dispenser works

The mechanism uses gravity feed and a rotating bucket inspired by a ball valve. With the bucket in its loading position, cereal falls into it from the hopper. A button press activates the servo, turning the bucket so it tips the collected portion out. The bucket’s edges extend into the hopper to disturb pieces that might otherwise lodge there.

This is a small custom enclosure built around a controller and servo, rather than a sealed or commercially tested food appliance. Garaio describes the project as an experiment; the tutorial does not report a measured portion size or a quantified reliability rate.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
#1 Best Overall
Rubbermaid Brilliance Airtight Cereal Food Storage Container, Shatterproof, BPA-Free and Dishwasher-Safe, 32oz Capacity
  • Shatterproof Visibility: Full 360-degree crystal-clear Tritan plastic body.
  • Large Capacity: Fits an entire 32-ounce box of cereal.
  • One-Handed Use: Contoured design and flip-top lid allows for convenient one-handed pouring.
  • Durable & Dishwasher-Safe: Made from durable, shatter resistant Tritan plastic that's safe for dishwasher use.
  • Space Saving: Stackable and space-efficient, designed to fit seamlessly into your pantry.

Parts, materials, and tools

Garaio’s build names the following components and supplies:

  • SG92R micro servo
  • Oxocard Connect controller and Breadboard Connector Cartridge
  • USB cable for power
  • 3D-printed housing and bucket parts
  • M3 screws
  • Two glass or PMMA (acrylic) panels; the tutorial specifies glass 1.7–2 mm thick, cut to 70 × 100 mm

The listed tools include a 3D printer, screwdrivers, soldering iron, wire cutters and strippers, and sandpaper. A glass cutter is needed if you are cutting the panels yourself. The project’s article-listed estimates are shown below; they are not verified current prices.

Rank #2
Sale
Utopia Kitchen Cereal Containers Storage Set with Lids, 4 Pack, 4L (135 Oz)
  • Set of Cereal Containers – The set includes high-quality cereal containers along with plain stickers and a white chalkboard marker for ease of labeling.
  • Ideal For Storage - Each of the airtight food storage containers accommodates an airtight leakproof lid preventing any accidental spills and preserving freshness for a long. The cereal storage accessory also has a pouring spout on the lid for better convenience.
  • Sturdy & Durable: Made from durable, food-grade plastic with a semi-clear finish, these containers offer a sturdy, strong structure designed for everyday use and long-lasting durability.
  • Dynamic Usage – These containers are undoubtedly one of the must-have pantry organizers and storage solutions, as they can easily store cereal, flour, sugar, coffee, rice, grains, beans, nuts, snacks, pet food, baking supplies & more.
  • Care Instructions - These Slim home organization and storage boxes are refrigerator-safe. It is recommended to use a soft cloth for washing or cleaning the surface to avoid scratching
Estimate in Make:’s 2025 project listing Value Qualification
Project time 1–2 hours Make: estimate, published April 18, 2025
Project price $95–$100 Make: estimate, published April 18, 2025; not a current-price check
Components Less than $20 Garaio’s statement; excludes the microcontroller

Build and set up the mechanism

  1. Print and prepare the parts. Print the housing and bucket components. Prepare the two enclosure panels to the specified dimensions if using the tutorial’s glass-panel approach.
  2. Assemble the enclosure and electronics. Fit the panels, housing, controller, cartridge, and servo as shown in the original tutorial, fastening the parts with M3 screws.
  3. Prepare USB power. Garaio’s instructions use power leads from a disused USB cable, soldered for the build. Take care to avoid shorts and verify the wiring before connecting power.
  4. Test and align the servo. Use the “Dispenser” example in NanoPy to operate the servo and set its position. Attach the servo horn only after checking that the bucket can move through its intended positions without binding.
  5. Load the program. Upload the script to the cartridge so it starts automatically, then test the button-triggered dispensing cycle before filling the hopper.

For the detailed assembly sequence and project files, consult Garaio’s Make: tutorial.

Choose the bucket and snacks to reduce jams

Bucket size is central to whether the mechanism feeds smoothly. Garaio says it should exceed the largest piece being dispensed and reports better results with a bucket-to-material proportion around 1:1.5 or 1:2 in this build. Treat that as a project-specific design observation, not a universal dimension: different snacks vary in shape and how readily they interlock.

What’s actually slowing this PC down?

Pick the symptom - the matching free tool is one click away.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
Rank #3
Rubbermaid Flex and Seal Cereal Keeper, 1.5 Gallon, BPA-Free, Clear with Red Lid, Airtight
  • Flexible dual-material lid removes easily
  • Large mouth for easy pouring
  • Strong lid seal keeps food fresh
  • Cap holds open for one-handed pouring
  • Canister is BPA-free

Small pieces generally worked better in Garaio’s experience. He reports that Rice Krispies transported reliably in this machine. Cereal with nuts produced cracking and crunching sounds, and he warns that pieces can block the mechanism and may need manual clearing, sometimes with a finger or screwdriver. Irregular or large pieces are particularly liable to lodge or interlock.

There is no quantified reliability test or food-safety validation in the tutorial. Do not assume that ordinary 3D-printed parts are suitable for direct food contact. Garaio recommends food-grade filament and/or treating the printed parts with food-grade epoxy; verify that any material and coating you choose is appropriate for its intended contact and use.

Rank #4
Honey-Can-Do Zevro Compact Dry Food Dispenser, Dual Control, Black/Chrome
  • COMPACT DUAL CANISTER DESIGN: Two 17.5 oz airtight canisters in a space-efficient profile measuring just 13"L x 6.5"W x 12.5"H — fits under low cabinets and in tight kitchen spaces while holding 35 oz total.
  • MANUAL PORTION CONTROL: Twist-knob mechanism dispenses approximately 1 oz per turn, helping manage servings of cereal, granola, nuts, candy, trail mix, rice, or beans while reducing spills and waste.
  • AIRTIGHT FRESHNESS PRESERVATION: Sealed canisters preserve food freshness for up to 45 days by locking out moisture and air — keeping dry foods crunchy, flavorful, and sanitary.
  • DURABLE SHATTERPROOF CONSTRUCTION: BPA-free, scratch-resistant plastic canisters with chrome-plated base. Integrated crumb tray catches debris. Components disassemble easily for thorough cleaning.
  • VERSATILE KITCHEN ORGANIZER: Perfect for countertop cereal storage, pantry organization, or even pet food dispensing. Eliminates box clutter and keeps bulk dry goods accessible and fresh. Hand wash only. Patented design.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

Controller options and possible changes

The documented build uses Oxocard Connect with a Breadboard Connector Cartridge and its NanoPy setup. Garaio also says an experienced maker could use an ESP32 board, button, and TFT display instead. That alternative means providing the input and display components and adapting the project setup; the article gives no price or measured performance comparison between the two controller approaches.

For larger items, Garaio suggests enlarging the mechanism and using a larger servo. He notes that this can make USB power more difficult. The project also leaves room for software extensions, such as adding a clock or user profiles, but these are possibilities rather than features demonstrated in the documented build.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Quick Recap

Bestseller No. 1
Rubbermaid Brilliance Airtight Cereal Food Storage Container, Shatterproof, BPA-Free and Dishwasher-Safe, 32oz Capacity
Rubbermaid Brilliance Airtight Cereal Food Storage Container, Shatterproof, BPA-Free and Dishwasher-Safe, 32oz Capacity
Shatterproof Visibility: Full 360-degree crystal-clear Tritan plastic body.; Large Capacity: Fits an entire 32-ounce box of cereal.
$15.99
Bestseller No. 3
Rubbermaid Flex and Seal Cereal Keeper, 1.5 Gallon, BPA-Free, Clear with Red Lid, Airtight
Rubbermaid Flex and Seal Cereal Keeper, 1.5 Gallon, BPA-Free, Clear with Red Lid, Airtight
Flexible dual-material lid removes easily; Large mouth for easy pouring; Strong lid seal keeps food fresh
$14.29
Bestseller No. 4
Honey-Can-Do Zevro Compact Dry Food Dispenser, Dual Control, Black/Chrome
Honey-Can-Do Zevro Compact Dry Food Dispenser, Dual Control, Black/Chrome
Designed to preserve freshness for up to 45 days; Essential for at-home dispensing of bulk-purchased cereals, granols, nuts, beans and rice
$27.62
Best Value
Osacoe Cereal Dispenser Countertop Black 2 Pack with Bowls Spoons Cutlery Box,5.5 QT Dry Food Dispenser Snack Organizer Containers Storage for Pantry Kitchen Organization Oatmeal Nut Granola Candy
  • New Design: you can put bowls, spoons, and napkin on cutlery box to keep your dining table neat and tidy. No need to prepare utensils and bowls in the morning – dive right into your breakfast!
  • Large Capacity: Each cereal dispenser have a roomy 5-liter capacity and can hold at least 35 ounces of large cereal. Dimensions: 16.54*6.70*6.50 in
  • Doesn't Crush Cereal: We've carefully designed the dispensing outlet to make sure your cereal stays whole when you use, and cereal doesn't get stuck
  • Good Sealing:Cereal dispenser countertop is made of shatter-resistant plastic and durable silicone seals.This ensures that dry food dispenser maintains an excellent seal, keeping your cereals, candies, and dry foods fresh, delicious, and ready to enjoy for up to a month or more.
  • Versatile Storage Solution: This countertop cereal dispenser is a fantastic Christmas gift idea and perfect for storing cereal, grains, granola, nuts, oatmeal, popcorn, rice, almonds, animal crackers, and even dog food.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

Leave a Reply

Your email address will not be published. Required fields are marked *

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

More from the Site Office

Recommended PC Tool
Recommended PC Tool
PC Slower Than It Used to Be?Free scan - under a minute
Crashes, No Sound, or Screen Glitches?Free driver scan

Two free Windows tools

One Free Minute Could Fix That PC

Before you go - each of these free tools takes about a minute and tackles what quietly slows a Windows PC down.

Special offer. View Outbyte info, uninstall instructions, EULA, and Privacy Policy.