No question about it, this bright red, 3D-printed, manual handmixer created by Instructables contributor, “Make it Big,” deserves its place in the pantheon of Culinary Chic, artful yet functional tools for contemporary cooks. You can 3D print one yourself and all you’ll need is, it probably goes without saying, a 3D printer as well as some PLA filament and a bit of epoxy.
“Make it Big,” a 3D printing enthusiast and student from Germany, designed the hand mixer himself and then used his K8200 3D printer and red PLA (set at a layer height of 0.2mm) to print this arguably, super aesthetically appealing hand mixer. He suggests downloading his .stl files from the Instructables site and using Cura or Slic3r for slicing.
Follow his easy instructions and you, too, will be the proud owner of your own 3D printed manual hand mixer in the color–or colors–of your choice. It’s the next step that becomes problematic: Using the device. He explained, “Although PLA consists of plants, it is not completely food safe.” Let’s back up a bit now. First, PLA or Polylactic Acid, is a biodegradable thermoplastic aliphatic polyester. It is produced via processing of a variety of plant products such as corn, sugar beets, and potatoes. It is considered to be the eco friendly material (as opposed to ABS, the other, most common 3D printing material) and is actually used in food packaging and containers. Most commercial composting facilities accept PLA.
That said, there seems to be considerable controversy among the 3D printing community about whether PLA actually is food safe, although consensus overwhelmingly warns against using ABS for containers, utensils, or any other objects that come into contact with food–like this hand mixer, for instance. One of the major problems is that with FFF (Fused Filament Fabrication) even with 100% infill, there are tiny voids between layers, little pockets where bacteria can grow.
So, while the PLA material itself isn’t technically toxic if ingested, you cannot get it clean enough to kill potentially harmful bacteria it may be harboring. That’s because you can’t sterilize it as the plastic will begin to melt or “flow” when it is heated to 130 to 150F (depending on its formulation). It would melt in the dishwasher or, if you tried to drink a hot beverage in a cup printed in PLA, you’d likely end up with the coffee or tea in your lap as the bottom melted out of the container.
Several sources we found recommended finishing a container or, in this case, the hand mixer, with post-processing solvent or a coat of paint, and one recommended adjusting 3D printer settings for “over-extrusion to fill the air gaps between filament layers.” The bottom line, however, is that even if you’re printing with PLA, there are no guarantees that it’s 100% food safe, either from a contact or an ingestion perspective.
The good news is that the 3D printing industry seems to be working diligently to solve the problem of food-safe printing materials. Ceramic material and Polypropylene (PP) filament, seem to be pretty good bets at this point. Meanwhile, keep designing and sharing your 3D-printed kitchen gadgets and containers and one day very soon, the industry will catch up!
Have you printed this mixer out? Let’s hear your thoughts on how food-safe it may or may not be. Discuss in the 3D Printed Mixer forum thread on 3DPB.com.
Subscribe to Our Email Newsletter
Stay up-to-date on all the latest news from the 3D printing industry and receive information and offers from third party vendors.
Print Services
Upload your 3D Models and get them printed quickly and efficiently.
You May Also Like
Metal Powder Supplier Elementum 3D Added to $46B Air Force Contract
Elementum 3D, a Colorado-based developer and supplier of metal powders used in additive manufacturing (AM), announced that the company has been added to the vendors list in the fourth on-ramp...
Ursa Major Lands $28.6M AFRL Deal for 3D Printed Draper Engine Flight Demo
The US Air Force Research Laboratory’s (AFRL’s) Rocket Propulsion Division at Edwards Air Force Base has awarded a $28.6 million contract to Ursa Major for follow-on work related to the...
3D Printing Financials: Rocket Lab’s Record-Breaking Year and Over 20 Launches Coming in 2025
Rocket Lab (Nasdaq: RKLB) closed 2024 with its best year yet. The company launched more rockets, signed more contracts, and expanded deeper into spacecraft and satellite production than ever before....
US Air Force Taps Beehive to Study 3D Printed Jet Engines
Propulsion 3D printing firm Beehive Industries secured a contract from the U.S. Air Force Life Cycle Management Center through SOSSEC. SOSSEC is a company that manages Other Transactions Authority (OTA)...