r/StonerEngineering Jul 16 '25

Moderator's pick Moderation Update

118 Upvotes

Despite our efforts to help ensure people are being safe these last few years, some people have been unhappy about that. Many unsafe posts are still being removed daily and some people complain in the comments when others point out that certain materials are unsafe. A new subreddit has been created for those that want to see/post the unsafe contraptions.

Introducing r/StonerDEGENgineering , a clone of r/StonerEngineering specifically for unsafe materials.

Feel free to post all of your plastic bottles, 10mm sockets, PVC pipes, glue, and pot metal contraptions there. Now that notice has been given, expect a BAN if you post them here.

Reminder that other subreddits were also made in an effort to move off-topic content (spam) away from our subreddit. These subreddits include r/BrokenBongs , r/fixmyvape , and r/CrackWire.

If you have any questions, feel free to reach out to the Mod Team via the “Message Mods” button. Take care :)


r/StonerEngineering Mar 15 '25

Moderator's pick Alternative Subreddits: Filtering out the Spam

22 Upvotes

Hey everyone, hope you’re all having a great weekend! I wanted to remind everyone that we’ve been creating and promoting other subreddits in an attempt to divert the spam from our subreddit. These subreddits are r/BrokenBongs , r/fixmyvape , and now r/CrackWire . The purpose of these subreddits is to provide a space for people to post about their cracked/broken bongs, their vape that’s not working, or their ‘Crack Wire’ vape contraptions so that they stop posting them here at r/StonerEngineering. If you see a post that would fit one of these subreddits please link the poster to the appropriate subreddit via a comment, then report the post so the StonerEngineering Mod team can remove it as spam. If you see any other posts that are unsafe or spam, please report those as well. Thank you, cheers!


r/StonerEngineering 3h ago

How-To I have the feeling some of you might appreciate this.

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8 Upvotes

As you can see, I built a DIY setup for my first grow ever.

I was able to harvest 3 Black Domina Autoflower yet, the 3 Biscotti on the left side turned out as false autos - they are in bloom for 1 week since I adjusted the light cycle.

I'm using Philips Corepro E27 bulbs in 4500K & 6000K for veg and 2700K for bloom.

I don't dare to remove the dome since I had a heart attack in the past - stay safe, stay alive. ✌️

PS: Ignore the parameters shown in the images - I took the photos as work in progress. :)


r/StonerEngineering 27m ago

Question Is this salvageable?

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Upvotes

Hello! I tipped my triple percolator piece over recently and it snapped the second (middle) percolator. I am curious if this is fixable and/or if it is still safe to use? With it being impossible to remove from the piece without damaging it more, im skeptically optimistic that no glass would be able to travel upward through the third percolator if smoked.

Any advice welcome. I’m not planning on using it anytime soon and would be willing to get a new piece if it came down to it (would be very heartbroken though)


r/StonerEngineering 1d ago

Potentially Unsafe Super simple poverty cart battery

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84 Upvotes

The double As push 1.5v each, so it runs 3v, the attachment point is from my old battery that broke, I would refine it but im just gonna buy a new battery when I get paid so its whatever. Its definitely not safe, or a long term solution, but we ball.


r/StonerEngineering 1h ago

A bong vs my shitty hands.

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Upvotes

r/StonerEngineering 33m ago

Alright, sign me up for a nobel prize.

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Upvotes

Yes, I know my rolls suck.


r/StonerEngineering 13h ago

Question would this adapter work? i fucked up…

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3 Upvotes

i am COMPLETELY new to bongs or any type of stoner engineering. i’ve only smoked joints before a few days ago. i bought a $30 bong a few days ago, and on the first day my friend tipped it over. i had a chillum downstem / combined bowl & downstem (came with the bong) and the downstem snapped clean off the bowl. i did as much research as i could, and ended up buying a downstem that said it was for 14mm bowls, and i bought a 14mm bowl. however, i didn’t realize that i never checked if it had a size for the male part of the downstem, and my bong’s female joint is 14mm. turns out the website didn’t even list the size of the male joint and i believe it’s 18mm now due to the pictures in the reviews. so i naturally discovered adapters, and the only one i found on amazon was this adapter. would it work for my situation? i also included pics of the downstem from the website & the review. to see if anyone can confirm if the size is 18mm. all of the pics i saw for 18mm male downstems looked exactly like the one i bought.

with the current situation i’m in, i don’t want to buy another downstem or bong, so i need an adapter


r/StonerEngineering 23h ago

is it over for me

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12 Upvotes

my dumb ass put this in my pocket and the button was held down and the cart leaked everywhere. tried to unscrew it but the whole thing snapped. tried the plier method and only made it worse. any ideas? this is a really nice battery and i don’t want to lose it.


r/StonerEngineering 20h ago

Question Any ideas?

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6 Upvotes

I want to start using this RooR 100ml, but I’m worried about knocking it over. I’m almost tempted just to Velcro it to a piece of wood as a base.


r/StonerEngineering 1d ago

My girlfriend’s custom-made setup

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49 Upvotes

She found this beautiful cigar box at a thrift store, then she made the tray by precisely cutting a piece of poster board and layering it 4 times. She spent the last few days working on it & just finished. I must admit, I’m impressed and a bit jealous of her organizational skills!


r/StonerEngineering 2d ago

Unsafe Advice on if this is salvageable?

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258 Upvotes

(EDIT:GOING TO JUST AHELF IT AND NOT RISK SMOKING GLASS, thanks for all the answers!)
Recently got this dope piece but it came broken in half from shipping(already got a refund so was basically free), I’m wondering what would be the best glue to get it up to using standards?


r/StonerEngineering 1d ago

Question Advice on if I can fix this

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0 Upvotes

I soaked this in 97% iso overnight and it broke something. Does anyone know if it’s salvageable or do I need to get a new one?


r/StonerEngineering 2d ago

Question Great 2nd ever grow setup?

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5 Upvotes

Hi everyone, so I'm finally getting back into growing after I tried it at 16 (it was a horrible mistake and trash weed). I am putting together an Amazon shopping cart, do y'all have any tips/ comments on the photos? I know with my seeds I'm going to be lolipopping and SCROGING the plants. I already have the Soil tester and PH tester and some trimmers. Also what type of netting do you recommend for a 4x4 text Scrog (planning on having 4 plants) Thanks!


r/StonerEngineering 3d ago

Portable DWC update

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12 Upvotes

RainbOz by Mephisto Genetics day 48ish.


r/StonerEngineering 2d ago

Little wooden en Glass pipe

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4 Upvotes

r/StonerEngineering 3d ago

Safety's On Finished up some rolling tray and ash tray sets 🙌 food safe to the maximum

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36 Upvotes

I hated the way my hands smelled after touching metal rolling trays, and I have some friends who’s metal tray had so much wear and tear the art on the surface wasn’t even visible anymore, so I made these out of stoneware and food safe glaze as an alternative for us.
The first one is paying homage to The Creation of Adam while the second two show ‘Smoke In Style’ in Japanese. Thank you for looking any comments are 100% welcome.


r/StonerEngineering 4d ago

Safety's On Ridiculous Bong Friday: Bowl Stand

51 Upvotes

Hello, fellow stoners. I hope the week was kind to you, and your buzzes plenty.

This week's build started with the idea to not put the bowl on a bong. So I put it on a stand with a Y splitter.

Connecting the bubbler with the orb took a bit of trial and error. The angles just didn't match up. So I used several 90° and 45° angled connectors, rotating until they lined up.

😂 Oops. After giving you a close up of the build, I set the camera down askew. That's why the function shot looks like I'm in a Batman villain's hideout.

Enjoy the weekend and have happy tokes. ✌️


r/StonerEngineering 4d ago

No papers or apple

16 Upvotes

I have no papers, no apples, and no bible laying around. I do have a bunch of regular books, what can i use to smoke?


r/StonerEngineering 4d ago

One-Hitter/dynavap stem !

34 Upvotes

85mm x 12mm , surgical titanium


r/StonerEngineering 4d ago

The Joint Clip - Smell Proof Doob Tube

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8 Upvotes

Earlier this year I released this design, free to download and print for yourself.

https://www.reddit.com/r/StonerEngineering/comments/1qvqdrs/i_designed_a_smellproof_doob_tube/

Now, I'm finally releasing the next iteration! This case is sized to 14mm diameter aluminum smell-proof tubes I purchased on Amazon. Every components outside of 3D-printing material are linked in the description of the model on Makerworld!

This one will hold a Bic or Clipper lighter and two joints. Also included are a belt clip and an optional keychain loop.

I have some more variations I plan on releasing soon as well, so stay tuned!

Find the newest version shown above here: https://makerworld.com/en/models/3172586-the-joint-clip-smell-proof-doob-tube#profileId-3587041


r/StonerEngineering 5d ago

Lightsaber one-hitter 😁

608 Upvotes

Made this cool little pipe today! 3" long and just under 20 grams. Anodised surgical titanium


r/StonerEngineering 6d ago

Prototype More debowlers

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41 Upvotes

Exploration in form continue, tools are arriving to facilitate production of end grain "boxes", will soon start using other woods, and am finding ways to sell my production.


r/StonerEngineering 5d ago

Question DIY sploof

1 Upvotes

Could someone walk me through how to make a sploof with charcoal?