My wife got me a dip pen as a gift, and I like it but I had a problem with the black ink paint bottle we have being too thin to dip the pen in, so I build a little ink cup that is just the size of the pen tip for convenience and less waste , and the format was chosen because its the most stable and hard to spill.
I've printed it in ABS, but I guess any  material should do, the important part is to make sure you print is airtight so the paint don't just pass through the material, I did it by making the 4 layers wall count. and it worked fine.
you could also use the a Pyramid to hold the pen in vertical  putting the pen ends on the Pyramid hole.

a small trivia is that i made the angle to be close to one of the Giza Pyramids






Pyramid dip pen ink cup

dip pen ink cup.stl

I've made this mini crossbow for a challenge at creality cloud but didn't uploaded it, but I wanted to post it somewhere anyway so here is it

It can be printed in PLA ABS or PETG,  and I use spare filament to fit the parts together,
to do it just assemble the pieces and put a piece of filament on the holes, leave about 5mm on each side and heat the end, and press it against the parts, to form almost like a nail head

for the bow string just get some string that have enough clearance to go through the trigger/body parts

the projectile can be made with a toothpick flatted in one of the sides or even with some raw filament

to operate force the trigger back, and pull the string till the trigger catch it, the slide the toothpick on the top until it fit on the stopper near the trigger aim and fire!

be careful with rebounds, the toothpick is not stabilized and can be deflected and hit eyes other sensible stuff

mini toothpick crossbow

mini toothpick crossbow.stl

I've designed this instead of  buying one, and i wanted to try inlaying the boxing gym logo i train into the box.  it worked pretty fine.

i've printed versions of this in PETG (Black), PLA and ABS (white), aside from PLA, they worked fine till now, the PLA one was a older version and it broke on the hinge part, that's why i added a little bit more of structure there

to assemble it just use a spare  filament, fit together the 2 parts and put it through  the holes with about 5mm left on each side. heat the ends with a lighter and form something close to a nail head just pressing the heated filament with something  (even the lighter) onto the piece. it works remarkable well, and i use this type of hinge with filament in a lot of my projects

I added a the original superior part with the logo of the Boxing gym i train, but also added a clean one if you want to print it clean, or even do a Boolean operation as i did with the  original.

feel free to remix it and if you want the to check the project in OnShape you can do it in [here](https://cad.onshape.com/documents/72a24361c68c447da4418244/w/5a0d93d5a5d6289ec14fc6fb/e/898f831e46f6af75093dcf60?renderMode=0&uiState=66ae6e341cdfec1a3e187291)

fully 3d printed mouth guard box

mouth guard box.stl

I've made this pencil case for my wife, she wanted a case for her pencils so I've made this one as a test for fittings so later i can go for a bigger 48 pencil one, but that's future me problem...
I printed it in PETG and it works well on that. 3 or 4 walls and 10 to 20% infill should do, there's a small part that may need support on the Side B, but other than that just print them on their back and everything should be fine

there are 2 versions for this box, with or without magnets, i've just printed one (with magnets) and glue the 6x2mm disk neodimium magnets on the holes with super glue, but you could use the no magnets version, i'm just not sure if the fittings will be good enough for retain the Top part closed with the Side B of the case. The magnet one is snappy and should be good to use, but maybe a little ugly and with exposed magnets because of small clearances for it on the Sides/Top walls...

assembly:
this is pretty simple, print the parts and cut some spare filament on the holes as pins for the connections , i used black PETG for the pins and heat the ends to form heads on either end, that works pretty fine and had no issues with it

if You want to remix it or give any suggestions, just go ahead!
the project is made on Onshape: [here](https://cad.onshape.com/documents/f2ba85a9c5ffef7ef72d4f60/w/22ad773ed0c075827f24b371/e/4924eef7edb5d6303c9896e1?renderMode=0&uiState=669ec94eea7aa56251cf5c73)

Durable 12 Pencil case

Assembly 12 pencil Box no magnets.stl

This is the base for my DIY enclosure, made with 3d printed Fittings and 490mmx25mm (outside diameter) PVC pipes. I've made 8 fittings in PETG  (one for each corner) and then wrap a transparent PVC sheet (we use them here it as table cover)  around, cut and glued with universal glue(it ended up meting the plastic a little bit). 
I added velcro at the ends of the bottom, so they wrap around the pipes, and join the the other part in the inside for ease of removal/installation.
and i also used velcro to help close the "door" (I've made it just with the same material, without gluing the front/sides)
it works very well, I've printed a lot of things in abs and PETG in it with no problems at all, and even without additional heating, just with the bed heat
i used it with my Creallity ender 3 v3 KE without the spool holder at the top, but i guess most of the ender series should fit too without changing the tube sizes, and if any thing just size the PVC pipes to fit your machine.
I'm also planning adding a aluminum sheet on the top of the box (under the plastic) to serve as a table for some tools for the printer, but nothing too heavy

DIY PVC pipe Enclosure

structure Assembly.stl

i made this mini boxing Ring for my dummie 13, its a little small in the XY (220x220mm) but they're not really fighting soo... i build that size so i can print all parts in my Ender 3 V3 KE without cuts our gluing, but I think with small changes it can be made more at scale

i've printed ir with PETG and ABS, but i guess any material should do,  ABS you may have issues (as i did) with the dimensions because of shrinkage, but with some material configuration that should be fixable

The one corner pad on the photo ended up unfinished because of print problem i had at a 80% print, but the part still ended up working well,  I'm also going to reprint them in different colors later so no worries...

the model is pretty simple to print and assemble, you will need: 
**Parts:**
- 1 floor
- 1 base
- 4 corners
- 4 poles
- 4 ropes

**Assembly:**
- Align the base and the floor and put 3 poles at the holes.
- Add the 4 ropes pieces on the slots and the rise a little the poles and squeeze the forth one in place with the ropes already directed into the slot, then put them in place again (if some problems with the dimensions of the floor holes or the rope being too big  to put on the pole in the spot, you may want to try printing with xy hole compensation the floor and base or with xy size compensation for the ropes)
- just finish fitting the corner pads on each corner 

- or you could also just assemble all the ropes, poles and corner pieces first and then fit all poles in the roles at the same time

hope you enjoy my creation, any suggestion just leave a message and remixes can be done no problem (I'm even thinking about making the floor part with some roles for the [DUMMY 13 - Acrobatics pedestal](https://www.printables.com/model/692455))
i if you want to modify the model, here is the link for the Onshape project [here](https://cad.onshape.com/documents/bbd9b6bb99251861dca48aee/w/f773fb3a4f7ad6927411c432/e/024a2d8108c757d134a633db) have fun!

Mini Ring for Dummy 13

Ring Assembly.stl

Just a guy from Brazil doing 3d print as hobby

i like to make stuff, and since university i've saw a 3d printer and wanted to make stuff in one, about 10 years later and here i'm!

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