juice squeezer

cults3d

When life hands you lemons, print an electric lemon squeezer. It all started with a big bag of oranges I bought on a budget a while back. They were too many for me, so I decided to make some juice. But there was no juicer. Obviously, this is one of the ever-growing number of problems in life that can only be solved with 3D-printing. My goals: 1: Design a squeezer for about half a liter of juice 2: Make it motorized because why not? 3: Use a safe way to activate the motor 4: Make it easy to replicate (e.g. use widely available standard parts) 5: Don't kill people with an extremely unsafe design 6: Make it look fancy 7: Make it printable on a 20cm build plate 8: Keep it simple This led to a design based on cheap and very simple KTYZ50 motors with a sophisticated translation using inner and outer gears. I'll upload that one later in a series of failed designs (but I've added a rendering to the images list). Why "failed"? This motor just hasn't got enough torque for this job... probably I should have done the math before. So, this is the second attempt with no gears at all but a rather strange activation mechanism. Goals achieved: 1: check, it easily fits two-thirds of a liter of liquid. But better empty the bowl after half a liter for safety reasons 2: check 3: check 4: check, but it's rather expensive 5: half-check; it could be done with less potential harm but yet I haven't killed anyone 6: half-check; actually it looks rather strange 7: check 8: check; i guess it could be done even more simple if one of my goals would say "cause as much harm as possible" Before you start: make sure you have a soldering iron and know how to use it you'll need some basic knowledge about electricity and its hazards make sure you have the equipment and ability to crimp some wires The BOM: A60KTYZ motor with ~30rpm. I bought this one but it's not very cheap: https://bit.ly/2qPNFmr Watch out if your country's line voltage differs from 220/230VAC! 4x Springs l=10mm, w=6mm. I used some from a 200pc spring set: https://bit.ly/2vACToF 2-terminal biscuit connector (is this the proper term? Dictionary says yes, brain says no). Something like this (with a maximum height of 14mm): https://bit.ly/2vC3Mso Maybe some hot-glue or superglue (optional) 4x M3x10 screws (any length up to 20mm will do), preferably with a flat head A power cord with crimped strands (I'm just assuming you have the equipment and knowledge needed to prepare that) 4x self-adhesive rubber feet: https://bit.ly/2K70r8b Warning: THIS IS NOT A VERY SAFE DESIGN! SPILLING TOO MUCH LIQUID INTO THE MOTOR BASE CAN CAUSE INJURIES AND/OR DEATH!!! DON'T BUILD THIS IF YOU'RE NOT FAMILIAR WITH LINE VOLTAGE! On the other hand: Juice is quite healthy. BTW: Here you can see the squeezer in action: https://gph.is/2K70r8b