Universal blower

I was absolutely tired of regularly buying gas cans to clean electrical circuits and I decided to make an air blower from a 12-volt motor from Aliexpress using a standard battery. I came across a 1500 mAh type B battery.

During operation, it turned out that this tool can not only clean electrical equipment, but also inflate boats, mattresses, fan coals for grilling, etc. To better perform these functions, he had to make various adapters for hoses and valves.

When operating at full speed, the battery lasts for 15-16 minutes of continuous operation. Whether this is a lot or a little can be understood by the fact that he inflates the boat (as in the photo) to 95% within 4.5 - 5 minutes. The remaining 5% must be filled with the boat pump, because The blower cannot create enough air pressure to fill the boat 100%.

The following additional components are required for assembly:

• Standard rechargeable lithium battery for power tools like this: https://aliexpress.com/item/1005006491283687.html
• 12 volt engine with speed controller: https://aliexpress.ru/item/1005006445155534.html
• Shutdown button https://aliexpress.com/item/1005005626056228.html
• 4 screws 2.5x12
• 2 screws 2.5x25

I made the contacts for the battery from a strip of copper foil 5 mm wide and 0.3 mm thick. You can see how they are assembled in the photo.

The gaps in the parts are small in places and require the use of a well-tuned printer to print.

All parts are printed in published orientation. Parts Paint1.stl and Paint2.stl need to be printed with supports from the table, although if the printer prints overhangs well, it is possible without supports.

A box was made to store all this mess: https://www.thingiverse.com/thing:6647702