Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4778323.

Remix of https://www.thingiverse.com/thing:3434651

Wanted to make a portable Power source for the CPAP on camping trips, and already use a ton of Ryobi One Plus devices (lights, radio, etc.) when camping. So I remixed this existing dual battery mount. Leaf spring contacts work perfectly as described in the source build. The battery contacts are set up in parallel for the added amperage. Soldered on a 24v to 12v dc step-down transformer. And added a cigarette lighter plug and 2 USBs as well as a 2post Flat connector.

Leaf Spring Battery contacts
https://www.amazon.com/gp/product/B06VTPWM6M/ref=ppx_yo_dt_b_asin_title_o03_s01?ie=UTF8&psc=1

Cheap 12v inverter
https://www.amazon.com/gp/product/B01H2XD2DY/ref=ppx_yo_dt_b_asin_title_o03_s01?ie=UTF8&psc=1




Ryobi CPAP Power source Camping

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3239369.

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/7Ew5TcCEbhl

12 volt power holder

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5375750.

Cover for a whetstone rack that can also be used as a water tray to soak the stone before using it.
Whetstone racks are marked with the grit of each stone.

whetstone water tray/lid

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5375745.

I was not happy with the angle of the stone rod when using the original design, so I flipped it around and added a chrome-plated wire.

The wire is from a coathanger everyone probably has one. (see attached example)

Ruixin Pro RX-008 Knife Fine Adjust with Hook Arm

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5374356.

I had trouble with the insert pulling out after a few weeks of use. So I made one with a 4mm nut inserted into the cavity then the bolt attached. This works GREAT! 

Ruixin Pro RX-008 Knife sharpener Knob fix

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4942449.

TwoTrees laser engraver air assist with a drinking straw and 4010 fan, runoff laser 12volts

TwoTrees laser engraver Air-Assist 12V

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Ryobi CPAP Power source Camping

Ryobi CPAP Power source Camping

12 volt power holder

whetstone water tray/lid

Ruixin Pro RX-008 Knife Fine Adjust with Hook Arm

Ruixin Pro RX-008 Knife sharpener Knob fix

TwoTrees laser engraver Air-Assist 12V