Ryobi battery to Craftsman/Sears cordless tool

thingiverse

A battery adapter so you can use Ryobi One batteries with Sears Craftsman 19.2v tools. --- I have a big set of Craftsman 19.2v cordless tools from a number of years ago. The batteries were NiCd and have all failed, but the tools still work well. In the meantime, I've moved over to the HomeDepot/Ryobi 18v system because I like some of their unique tools. I don't want to buy new Craftsman batteries and a Li charger and maintain a whole separate system. With this adapter, I can use the Craftsman tools with the Ryobi batteries. Starting with Simhopp's Ryobi battery receiver model, I made a shell that converts the Ryobi battery shape to the Craftsman battery shape, and I merged those two parts together. The Craftsman side accepts the top connecting piece from one of my dead Craftsman NiCd batteries. If I stack it all together, I get a Ryobi battery connected to a Craftsman tool. You need to harvest the following from an old Craftsman battery: - The battery top - The electrical contact assy - The release buttons - The button springs - The 5 assy screws. For the electrical contacts use Ryobi Contact Plate holder 300001044 or Makita 643918-8. With the adapter, the Craftsman tools are operating at 18v nominal, not 19.2v. So far in testing, everything works fine and it's not having any noticible impact on performance. Here's a video! https://youtu.be/kxD3raEd51E --- Model descriptions: Sears_Ryobi_Adapter_Final.stl --- This is the main adapter part. ryobi_t-s.stl --- This is the clamp piece for the electrical contact. Ryobi_Base_Fixed_Final.stl --- This is a rework of the part I mixed this thing from. I modified it a couple ways (the electrical contact position and enlarging one of the cutouts on the bottom) so it worked/fit better.