Repairing issues is likely one of the finest causes to get a 3D printer, and it’d simply provide the push you want to be taught to mannequin objects for your self. If you happen to’re on the lookout for some inspiration, listed here are some examples of how a 3D printer can are available clutch and prevent cash.

Asahi Pentax K1000 35mm film camera. Credit score: Tim Brookes / How-To Geek

Typically, an equipment or a software will break, and sourcing a substitute half is unattainable. If the merchandise has loads of life left in it, like an influence software with a damaged button however a completely functioning motor, you possibly can strive modeling a substitute half and performing the repair your self.

When somebody jumped on Reddit and posted a repair for a vintage can opener, at the very least two different individuals within the feedback had been having an analogous difficulty (and one even requested the print file to make the repair for themselves). Another person created a substitute door latch and winding mechanism for a Soviet-era film camera (good luck discovering components for that).

And not using a practical 3D print, these things can be relegated to show items or, worse nonetheless, landfill.

Dear OEM components

An AEG washing machine ready to start a laundry cycle. Credit score: Tim Brookes / How-To Geek

I confess that my important inspiration for writing this text is the variety of fixes I’ve seen posted for fridges on Reddit over time. It’s an issue that many people have had: a bracket or shelf breaks and turns into functionally ineffective, then the producer needs an unreasonable price to interchange it.

A 3D printer might help you restore door cabinets with a bracket and some plexiglass, PETG and scrap wood, and even by reusing the existing broken design. The identical is true for freezer compartments with broken door catches. Previously, I’ve paid to interchange components like this however now that I’ve a 3D printer I’d slightly dedicate a while to the issue and develop my modeling expertise as a substitute.

Toys and different objects that aren’t “value” repairing

NERF blaster. Credit score: NERF / Hasbro

If, like me, you’re not too keen on the disposable commodity mindset the place issues are thrown away slightly than repaired, you may must get into 3D printing. Youngsters’s toys are significantly related right here, with substitute components usually not provided, even in sturdy objects.

Take the common-or-garden NERF gun, for instance. One Reddit consumer recognized an issue based mostly on a lacking piece of plastic, guessed what the plastic half ought to appear to be, and printed a working replacement. One other created a 90º bracket for a set of goalposts that had damaged (and now has the mannequin for the opposite aspect, when that goes).

Baggage is one other instance, and one consumer printed a replacement suitcase handle. If you happen to’re going this route, be sure you print it in one thing powerful since you recognize what these baggage handlers are like.

Excessive-wear objects

A flimsy plastic catch on a dryer.-1 Credit score: Tim Brookes / How-To Geek

I’ve changed the door pin on my dryer twice in its ten-year lifespan. Not solely was it a mistake on the producer’s half to make use of plastic, however this can be a high-wear merchandise that’s liable to interrupt because it’s always rubbing and impacting the catch on the within of the door. The following time it goes, I’m firing up the printer.

Hinges are one other high-wear merchandise, so that you may end up in the identical place as one other Reddit consumer whose dryer door hinge cracked. The particular person posted a picture three years after modeling and changing the half with a PETG print, and it’s nonetheless going robust. They even improved the design with some added screws for reinforcement.

A microwave is one other family equipment that tends to get used so much. A lot of the time, the latch will fail earlier than the electronics do. When the door now not closes, the microwave is nearly as good as ineffective. A replacement latch can come to the rescue, and also you won’t even must mannequin it your self.

Knobs are one other half that may crack, break up, and fall off. You may discover an merchandise in a thrift retailer that’s in nice situation, other than a lacking knob. So long as you possibly can work out how the mount works, there’s nothing stopping you from printing your individual.

Positive, the substitute won’t be as hardy because the injection-molded unique, however after getting an answer, you possibly can simply print it once more (and maybe use PETG or ABS next time).

Issues your landlord gained’t repair

Earlier than shopping for the place I dwell in now, coping with landlords and property managers was the bane of my existence. Getting issues fastened was such an ordeal that I picked my battles fastidiously and put up with every thing else. A 3D printer suits the invoice completely, since fixes might be as short-term or low-cost as you want.

While you hire, you possibly can’t essentially pull the place aside and work on a everlasting repair. So that you’re left with “short-term everlasting” fixes that keep in place till they fail otherwise you transfer out. One instance of this can be a spacer for hinges to stop the door from dragging on the ground. One other is a printed mount for an inexpensive doorbell substitute that matches on the outdated mannequin.

Small enhancements to objects you don’t need to change

3D printed parabolic Wi-Fi antenna lying on its back. Credit score: Tim Brookes / How-To Geek

Typically there are issues round the home that do the job simply high-quality, however require a small tweak to get rid of friction or some extent of failure. instance is a faucet that appears good however wobbles a bit too much if you transfer the top.

One other instance could be a Wi-Fi signal booster for higher protection, or mounts for sensors and other smart home upgrades.

Important objects that may’t wait

Glasses on a counter. Credit score: Tim Brookes / How-To Geek

As somebody who can’t perform with out their glasses, I’m unsure what I’d do if one thing occurred and I needed to wait two weeks for a substitute pair to point out up. That explains why I’ve seen so many 3D-printed glasses fixes posted on-line, largely for broken arms.

One other good instance of an merchandise that may’t usually wait is a key with a plastic cowl. This is able to usually require using a pair of pliers so as to put sufficient drive on the important thing to show a lock. One Reddit consumer did this by pausing the print on the midpoint and adding the key to a channel, then printing over it.


Huge shout-out to the r/functionalprint neighborhood on Reddit, which is the place I’ve discovered so many inspirational designs. If you happen to’re feeling helpful, you may also be all in favour of listening to how a 3D printer can be used to improve your power tools.


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