Today we design alternatives for Laura's Zippo bit safe.
So let's have fun and work with the design.
I start with measuring the size of the inside of a Zippo as well as of a standard bit and
3d print a quick testpiece to adjust the fit.
Then I re-create Laura's original design in Fusion360 and print it on my Anet A8 printer.
My first print was too short and the lid did not close properly.
With a quick change of the parameters in Fusion this is fixed and we have the same functionality
as the original design.
Just by playing around with the bits it seems possible to store 6 bits instead of 4 if we
arrange them differently.
When modeling this in Fusion I realize that it only leaves me with 0.2 mm between the
bits.
Let's see if that works.
While it works and stores more bits but it doesn't make use of the space in the lower
half of the Zippo.
If we go back to the original design and punch the holes all the way through we would have
enough space for 8 bits.
After printing this the first print is too loose, the second print is too tight and the
third one again too loose.
After quite some forth and back I realized that the friction might be easier to control
when using a circle instead of a hexagon.
The first circle was too loose again but the second attempt produces a nice friction fit.
What I like about this version is that you can take the insert out, flip it and you have
a second configuration of bits.
In CAD we could create the same design with through holes for 6 bits but the walls will
be too thin to be practical.
I am happy with the storage capacity of this one - in particular as it works identical
to the original if you don't need any of the additional bits.
Let's explore another design purpose.
We could try to add more functionality to the holder.
An obvious feature would be to add some kind of improvised screwdriver.
I just go back to the model and add back the hex shape to one of the circles and print
it again.
It seems to work quite well.
For sure it will break if you apply a lot of torque but it works surprisingly well.
The only problem is that the bit slips into the holder if you apply downward pressure.
Let's add one more hole in order to secure the bit.
If we move the bits a bit closer together and move them a little bit around we actually
have enough space for some rare earth magnets.
With these in place the screws will stick to the Zippo case and don't get lost.
I will stop here as this version provides me with the functionality I need: The holder
can store up to 8 bits.
All the bits are easily accessible.
It can act as an improvised bitholder and after pulling out a screw you can store it
on the shell.
Let me know in the comments if you have additional ideas how to change or improve the design.
All the files will also be available under the link below so you can start your own experiments.
A big thank you to Laura for the inspiration.
I will leave a link to her video in the description.
If you liked this video and want to keep up with new projects please subscribe to my channel,
also check out my other 3d printing videos and follow me on Instagram for a look at future
projects.
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