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Had to read like 50 comments and nobody pointed out you can just buy a generic knob for like $1. Hell your used building center would be 50 cents. WTF world do we live in where the solution is CAD and 3D printing for something so trivial. It's like using a nuclear bomb to kill an ant nest.
Once you have the printer and the knowhow, it takes like 5 minutes to draw and 20 minutes to print at a cost of like 0.10 €
It takes longer to go to a location and buy it at a much higher cost. So why should you?
Its also something you built with your hands and brain. There are few things which feel as good.
Oh yes! The correct answer is to 3D print a plastic knob for the front of an oven. There's not going to be any heat issues there! And no one can deny how beautiful that black knob looks next to the brushed metal.
There is no single correct answer. There often isn't, in fact.
As for heat: You can treat PLA to be more resistive to temperature and even at stock, untreated, cheapest PLA wont just deform from hot air escaping since the thing melts at 190 and the air wont be that hot for long enough. It may deform with regular use though. You also don't have to use PLA and use something more temp resistive.
Beauty? Eye of the beholder. Its a conversation piece. Its something you point at and say "I made that". Its wabi-sabi, I like it.
190 celsius, I'd like to add.
If it melts, just print another!
The stock knobs are most likely plastic already, but I do agree the black knob looks stupid. It would probably look a lot better to print matching replacements for all of them.
The knobs on your oven are overwhelmingly likely to be either completely made of plastic or contain a large percentage of plastic already. Typically they're made of ABS or PBT.
PLA probably isn't a good choice for this application but you could absolutely print some knobs in ABS or ASA and you'd be fine. You can even get PBT filament, but that's probably more hassle than it's worth and ABS is cheaper.
Look dude, fuck those ants.
Why not both. 3D print one and swap them at Home Depot. Or heck 3D print all of them, replace them all, keep the one you need and sell the rest on eBay. If they all match, I doubt Home Depot would even notice.
Some poor sucker is going to eventually buy the display model tho
They'll get an even better deal then given the missing knobs! Or the store will just foot the bill for the replacement knob that they can probably get for less than the consumer price
Well they're available on eBay...
With free returns and having a size difference in my feet I may (or may not) order 2 different sizes of the same shoe and end up returning one.
The same but for my broken Xbox, after a little sticker art.
My 0$ knob
LG wants me to pay $45 for a single official replacement.
Amazon has a whole set for $14.
You can dip it in shiny paint too. Its not stainless steel but its good enough
No worries, the OEM ones aren't stainless steel, either. They're "stainless appearance," i.e. plastic with a thin veneer of cheesy chrome plating that's about one molecule thick.
You can electroplate 3D prints by using a basecoat of conductive spraypaint, and then the limit of the thickness of your plating is only really limited by your patience. Nickel is quite easy to do at home.
I quite like electroplating with titanium. Can vary the voltage for some great colors too.