Bulbasaur Air Cooling Blower

It'll be my niece's birthday next month.. so i thought i would design something for her as a present..

After much thought.. i came out with a portable air blower to cool your hot drinks.. i'm using one of my old bulbasaur pokemon design and turning him into portable air blower.. since i can fit a 5v blower fan and a rechargable battery on his back..

There will be some soldering involved.. but its a simple job..

Difficulty level:

1. 3D printing - Easy
2. Assembly - Easy
3. Wiring - Easy
4. Painting - Nop

So lets begin..

1. 5V Slim Micro Fan
2. Rechargeable Power Kit
3. ZH1.5 male wire
4. Round neodyme magnet - D5 x 2mm
5. M2 x 8mm Stainless Steel Flat Head Cap Machine Screws (FHCS)

All supplies can be brought from my makerworld page here..

and of course a 3D printer.. i'm currently using a BambuLab A1.. you can get them here using my affiliate links if you're interested..

I modelled the bulbasaur using Autodesk Maya and 3d printed it using Bambu studio slicer.. there is some parts that needs supports and i've already added them in my 3mf file..

You can download the 3d file at my makerworld page here..

https://makerworld.com/en/models/1111382#profileId-1107973

Parts:

1. Body
2. Back
3. Button

There is 2 version of the print profile.. one is using PLA and the other PLA with PETG support.. the PLA with PETG support will give a cleaner and smoother separation between the model and supports.. you'll need a multicolor printer to print using PLA and PETG supports..

I have set the 3mf file to print multicolor too if anyone is interested.. you'll need 3 colors for the bulbasaur.. you can get the BOM list and links to buy the filament and hardware at my makerworld page here..

https://makerworld.com/en/models/1111382#profileId-1107973

The first step is to prepare the 5v blower fan.. since we will be using bambu rechargable battery kit.. we need to change the wire header for the the blower fan from its standard connector PH1.0-2P to a ZH1.5 connector.. make sure the wire is around 90-100mm long.. I soldered my wires to the connector and heat shrink tube the wires.. now you are ready to install the whole rechargable kit into the pokemon..

1. The first thing you need to insert is the rechargable board.. you'll need to install the button into the body first and align the button hole with the button on the rechargable board.. the USB-c hole and the button hole should align.. i sticked the board to the body using foam double sided tape..
2. after installing the board.. test the button and make sure the fan spins when you push the button..
3. next we will need to insert the battery.. insert it upside down with the wires first.. the should be enough slack wire to insert the battery on top of the board.. you can use foam double sided tape to hold the battery together with the board..
4. next will be installing the blower fan.. make sure the fan air outlet is facing upward towards the head.. as air will blow though the pokemon's mouth..
5. you can push the blower all the way in.. and insert the extra wires into the gap to hide the wires..
6. you will need a M2 x8mm screw to hold the blower fan in place.. there is a gap hole on the side of the opening for the screw..
7. to screw the fan.. push the fan all the way outward until it align with the opening.. the hole for the screw should align.. you can screw them together now
8. the back of the bulbasaur have gaps between them for air circulation.. to hold them together.. i glued 2 neodyme magnets to the back and to the body.. there are holes provided for them..
9. finally test everything to make sure the fan turns when you push the button.. and its not hitting the wall of the body..

After i completed the assembly.. i found that the air being blown by the blower fan is not as strong as i liked it.. you can feel the air coming put out of the bulbasaur's mouth... but its not as strong since the battery can only output 3.5v.. you can get more air pressure if you connect it to the USB-c but then it wont be portable anymore...

Because of this i might make another version that is plugged into a USB.. this way i can use a bigger fan for the air blower..

Overall.. the project works in principle.. i hope you'll have fun 3d printing my bulbasaur air cooling blower..