Ozito Battery to Ryobi Tools Adapter

This adapter will allow an 18V Ozito / Einhell Power eXchange battery, to operate most Ryobi One+ cordless hand tools.

Some of the higher powered tools like the angle grinder, and impact wrench may cause lower powered batteries to cut out (overload) or sometimes there can be feedback from the grinder that may destroy the battery.

I stick with using it for drills, lights, grease gun, etc.

I had some Ryobi tools lying around and the batteries were getting a bit tired. I had some fairly new Ozito tools, so I went hunting for an adapter, but there wasn't one for what I wanted. After some prototyping and handing out some demo's to friends to test out and get feedback, I finalised (ish) the design and now sell the fully assembled and tested adapter (and other models) on Ebay.

https://www.ebay.com.au/itm/283240837343 Ryobi
https://www.ebay.com.au/itm/283894044834 Dewalt

0.4 or 0.5 nozzle
0.3 layer height
3mm wall thickness, top and bottom
15% infill
supports on

I print the top separate to the bottom and insert and buttons, mainly to lower the risk of waste if there is a failure.

Parts List
1x top
1x bottom
1x insert
2x buttons
2 springs (0.7x9x15) over stretched to double the length
4 wood screws m4 x 16
Brass contact x 2 of 0.5 x 10 x 95 bent to specs

print time is about 22 hours
object size 120x90x80
I use PLA+ or PETG depending on requirements

there are extensions to increase the surface contact with the heat bed. They are only 1mm thick so can be trimmed off easily with scissors or metal snips. be careful with the screws as they can strip out easily if over tightened.