Coffee Bag Lid

by Jinja, published

Coffee Bag Lid by Jinja Jan 7, 2013

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66766Views 15967Downloads Found in Kitchen & Dining


Attach a screw cap to the top of your coffee bag so you can quickly access your coffee. The pour is easier to control with the smaller width hole.


Print one of each of the following...

CoffeebagCap or CoffeeBagCap2

Open your coffee bag and hold the CoffeeBagLid in place at the top of the bag so that there's enough of the bag for the CoffeeBagClip to hold. While holding the CoffeeBagLid in place with one hand, pry open the "tongs" of the CoffeeBagClip with the other hand and slide it over the CoffeeBagLid. The lid should now be loosely held in place. Slide on the CoffeeBagLock to lock the clip into place. Screw on the CoffeeBagCap!

It's not the easiest thing to attach, but when it's on it's secure. If anyone has any good ideas to improve the attach process then please let me know.

UPDATE: 17th Jan, 2013. I've added a taller cap for easier use, CoffeeBagCap2. It's from http://www.thingiverse.com/thing:41981 but it has an identical radius/thread.

UPDATE: 17th Feb 2013. I've added pourcap.stl, a cap that allows me to pour ground coffee in a controlled manner into a reusable kcup.

If you like my designs, please consider leaving me a tip to help keep my designs free! Thank you very much! Click Tip Designer or https://www.paypal.me/thenjm

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This is really cool, and it works!

I'd love to see a higher-resolution STL file so that the threads could be more round and thus close more easily. The current resolution makes threads with a stair-step shape, my printer's capable of printing a less-coarse thread and it'd make it easier to open and close the cap. Or if you posted the design files we'd be able to make STL files at whatever resolution was usable on our printers.

Honestly didn't make it all the way thru the comments but.. an awesome addition would be a screw on measurement cup, turn upside down, fill the tube cup and then twist it 180 and out comes your grinds.

FAN-TAS-TIC !!!!! I've been thinking in something like this for several months, but in my case it will be used in powdered clothes soap bags.
Its just a matter of scaling up !
Tkanks, Jinja !!!

Hey, I'm having some issues with the CoffeBagLid.stl when I try to slice it in Simplify3D. For some reason it wants to add an extra layer just under it. Let me show you a couple of pictures for example.

Layer #1: http://i.imgur.com/utFjmDO.png
Layer #2: http://i.imgur.com/q49CWV0.png

I tried running it through Netfabb, but it didn't fix this error. Could you take a look at this?

From your screen grabs it looks like you are printing more than one item. My guess would be that whatever software package you used to combine multiple items has not perfectly aligned the base of the items to the tolerances of your slicing software. So your slicing software has including a support layer below the problematic CoffeeBagLid.

That's just a guess. You can test this theory by slicing each component individually to see if it slices correctly. If they do then try using an alternative software package to combine your STL's, or just print the parts separately.

Good luck!

I've tried using only that one item, but it still wants to print these. When I've looked further I can see that your threads from the lid "poke through" the bottom (http://i.imgur.com/G6BMGRe.png), and that makes my slicer software to want to lift up the item so that these small bumps don't get below the print surface!

I can see the same thing when I use thingiview on that item on this page. Somehow you have managed to make the threads poke through like that ;)

I've tried using only that one item, but it still wants to print these. When I've looked further I can see that your threads from the lid "poke through" the bottom (http://i.imgur.com/G6BMGRe.png), and that makes my slicer software to want to lift up the item so that these small bumps don't get below the print surface!

I can see the same thing when I use thingiview on that item on this page. Somehow you have managed to make the threads poke through like that ;)

I've tried using only that one item, but it still wants to print these. When I've looked further I can see that your threads from the lid "poke through" the bottom (http://i.imgur.com/G6BMGRe.png), and that makes my slicer software to want to lift up the item so that these small bumps don't get below the print surface!

I can see the same thing when I use thingiview on that item on this page. Somehow you have managed to make the threads poke through like that ;)

Yep, that's the problem right there, good find. Easy enough to fix but I don't know when I'll have time (crunch time at work). Maybe on Sunday.

I'm not familiar with your slicing software, but In the meantime,you might be able to tease out the results you want by adding a raft or lowering the position into the bed or decreasing some tolerance somewhere.

I've just added CoffeeBagLid_v2

Nice design. I would like to suggest a small modification that might be useful:

Currently, the cap must be removed and replaced with the pour spout if you intend to use it. It might be worth threading the top of the pour spout and creating a cap that would attach to that. That way you don't have to store the pour spout separately and there is no need to swap them before and after use.

I printed some of this in ABS and they work fine.
Got one actually on a bag of coffee, 3-4 printed for reserve because it's a genius product!

Now my question:
As mentioned before, 3D printed parts can be not the best for foods - especially ABS isn't a good choice there.
But technically, the part doesn't heat up or has permanent contact with the coffee beans in the bag.
If i wash the printed parts good etc so that there are no "flakes" that could be get loose it should work, aint it?

Would be nice, if that was possible.

I really like this and have printed it and use it without any problems. Great idea and execution. I like it but it works much better for ground coffee rather than whole bean. Those beans just dont want to come out.

Very nice! One suggestion would be to slightly (very slightly) enlarge the clip and lock. Currently, there's almost no compensation for the bag thickness, and my new print has already cracked due to the strain.

Brilliant! I think I'll make one for my sugar!

Great design. Wish you'd have included the source files so I could customize.

when I open the lid in slic3r it won't sit on the build plate. the model is 1 layer (0.2mm) off the build platform so I can't generate good Gcode?!

turns out some of the threads were poking through the bottom of the model just a tiny tin bit, cut them off in Inventor and now it works perfectly!

Thanks for the comment. That solved my problem. I couldn't understand why it was printing two tiny rafts and then printing the rest in the air....

Thanks for this! I am printing my second one right now. It works really well! Printing in .1 with black PLA. Slow but steady.

Anyone figure out the lid issues?

I thought I might read the article posted here. This link took me straight to a malware site that was actually able to download a file before the page even loaded. I don't think anything was executed to allow any malware to truly infect my PC but just wanted to let others know

The lid is giving me a hell of a problem. all sort of stange stuff happens. Could i get the original file :D!

You want the SCAD file?

Any chance I can get the scad file? I love this thing, but I grind my own beans so I use it for whole beans and the opening just isn't big enough. I want to customize it with a bigger hole for whole beans!

Never mind.

It had two triangle in the botom messing up.

Opened the STL i SolidWorks and just cut the off. Id worked (even though my printer screwed up, but this time not beacause og the file/gcode ;)

I love it and i'll print a new lid when i have the cooling fixed ;)

I'm having the same problem but I don't have SolidWorks to fix it. Any suggestions?

Yeeees maaan! YEEEES!
I was saving bottle caps and stuff like this for months to make things like this one
Thank you!!! <3
Everyone thought I was crazy, but I am not! HAAH HA HAHAHHAA
Well, not compleetely crazy

Nice job!

Just printed this yesterday, it worked great! My printer melted the end of the clamp though so I had to print it again and slightly larger.

Also I just thought of this, how food safe is the plastic? I've done some research and I understand that the plastic is hardly considered food safe, but it's not heated up when in contact with the coffee. It's just kinda like a funnel. The coffee would hardly come in contact with the lid so therefore I feel that it is more safe than a printed cup.

I may stop using this due to safety issues, I'd rather not get sick.

You posted this awhile ago, but PLA is not going to make you sick, its made from sugar cane or something like that. The factory it's made in on the other hand.... You can buy FDA food grade plastic, but it's only REAL spec is it was extruded with a nozzle that has never had non-fda plastic through it.

Since it's cold, and hanging out with coffee, I think you'll be fine. I'd just try to not get it above 80 degrees C

My 2c

Hi, I downloaded this brilliant idea and printed by my da vanci Duo 2.0 printer. The cap lost its cover surface. I think my printer's 3D software has some bug. Anyway has similar problem? Also, should I print it with base?

I had the same issue. The cap printed as an open cylinder without a top. I ran the file through netfabb and now it renders correctly.

I'm not sure about the nuances of your particular printer but you shouldn't have to print with a raft.

Thanks! I just posted what I printed. I don't know how to describe it correctly. The bottom portion of these parts like melt down chocolate. So it can't show a perfect angel like the top portion. Need a real digital camera to take closer picture.

All the files printed out fine for me except the lid..any suggestions? It tries to print out a raft that is not right. without the raft it just shoots plastic in the air and makes a mess....

You can use the small cap from http://www.thingiverse.com/thing:41981http://www.thingiverse.com/thi... for this too. Maybe I should just add it.

Bag Lid
by Jinja

added CoffeeBagCap2

I've made a derivative that I think improves the ease of use. I've added a wider lid that's big enough to accommodate a table spoon and can pour larger things like corn flakes. Let me know what you think.

Printed beautifully, works beautifully - awesome!

This is great, holds the bag really nicely. I'd agree with richrap's comments about the ridge on the clip, but it's very useful as-is.

Awesome! - Going to print one (or more) now - thanks for the great design, I'll be using it tomorrow morning :)

Just print one for now. I'm going to try another design that might do away with one of the pieces. Let me know if you have any usage problems (mine are doing great so far)

Very nice, it works well, the clip locks well but can slip up and down, so maybe a ridge or groove could help that.
The screw cap also fits, but for me could do with being a little taller so it's easier to open.

I'll upload a pic of it in action - thanks again.

I've added a taller cap. CoffeeBagCap2

Yes, both good ideas.

Just going through the Newest listing and saw this and have to say, this is too good . . . Nice design ! ! !

I don't even drink coffee, but this is awesome!

I suppose it could be applied to other bags, not just coffee. I could supersize it and add it to cereal bags. Or rice bags. Or Maltesers bags, yum! No, not Maltesers, they don't last long enough to necessitate a lid. Any other uses?

Might as well print one to use on a bag of plastic pellets when making your own filament.

That one would be worth posting at http://Quirky.comQuirky.com It's the sort of thing they like taking to market, would stand a decent chance of getting picked.

Thanks everyone. I've never heard of Quirky before, I'll check it out, thanks. I've just had another idea that might be easier to clip to the bag. I'll try it out.

That is really really clever