But what the hell happened to the other knob? I've done a lot of stupid shit around the stove but I can't imagine what could happen to it.
this post was submitted on 09 Jan 2025
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Little sanding and silver Rub 'n Buff on that print will make it look a lot better and closer match to the rest.
I like to keep the 3D printed look for spare parts, because its a good conversation starter and it often blows peoples minds if you tell them how cheap it was to produce. I was able to get at least 6 people into 3D printing now that way.
And if you need guards for your knobs, I designed some after bumping mine and turning on the gas more than once.
If people have little kids, or dogs that like to “counter surf,” guards are a pretty much a must (we just took the knobs completely off when our kids were little), acquaintances of ours lost their home to fire when the dog counter surfed and turned the gas stove on. I don’t remember what caught everything on fire that was on the stove, but they lost everything, and it killed the pets too.
Yeah, we had a different stove when our kids were small, and it had the knobs at the back of it.
I think some newer stoves will automatically shut off after a certain amount of time when the gas is on but no flame is detected.
Maybe I'm missing something obvious here, but how do you use the stove?
You push the knob in and turn it. The guard goes around the knob, but doesn't stop it from turning.
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Pro tip as a 3D printer owner/user though:
Oftentimes for small elements like this you can just contact the company and they'll send you a knob or whatever. (Probably won't be that lucky on repair parts though)
But I also enjoy the pride of seeing things I've repaired and longevitized with my own equipment. :)
I just grab the serial number from a recently sold one and file a warranty claim on it.
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Wouldn't that be susceptible to melting due to oven temps? Or is that probably made from a higher temp filament?
Not really. You can print it out of ABS easily enough if that's a concern, given that there is a good chance that is what the knob on any given residential range or oven is likely to have been made out of by the factory anyway.
As a matter of fact, since this is directly in my wheelhouse (not that wheelhouse, the other one) vis-a-vis both 3D printing and whitegoods, let's take a look.
Being in the unique position to be able to do so, I grabbed a knob off of a random smattering of ranges. Here's what I found from the ones that didn't require taking them apart further to find the markings or scraping at them with a knife or something (hey, there's the other wheelhouse):
- Maytag (Whirlpool): Stamped "ABS" on the inside.
- Bosch "Industrial Style" (similar to OP's): PBT
- Whirlpool: PET
- Verona: ABS
- GE Base Line: ABS
PBT has a pretty similar melting point to ABS at ~235° C. With ABS it's complicated, but I print ABS at 260° C for what it's worth. PET is also typically given around 260-270. So these are all pretty similar to each other.
TL;DR: You should be fine with ABS.
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Glass transition temp of PLA is around 55-60C - that’s when it starts to get malleable. I’d be pretty surprised if the oven knobs get that hot.
Depends on the type of filament used and temperatures that are actually present at the knob. I would say no since the temperature required to melt (or warp) the knob would have to be high enough to cause some pretty severe burns if you touched it with your hand. if the knobs on the oven/range are getting that hot, there is a lot more to worry about here than the knob melting.
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I'd say more like 30 cents, but this one's clearly stolen - a real 3d printer owner would have had the right color filament on hand.
Much more realistic that we'd intentionally spend $40 on a specialty roll of filament to have the right color and finish for that one specific print. See, I'm totally saving money! Right after I print, like, nine more of these!
Now THAT is a life hack.
lol when i was an asshole kid i did that with guitar volume knobs
Thats going to be a squidgy mess after a long cooking session. Hope he doesn't get plastic burns.
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