M18 to Black and Decker 20v adapter
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Adapter to run Black and Decker 20v tools with Milwaukee M18 Batteries.
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- Printables
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- Tools
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- Creative Commons — Attribution — Noncommercial
First, let me say everything about this print is objectively wrong and assembling/using it requires a lot of editing the model with a soldering iron. I could put hours into improving it, but all I needed was a workable solution. I looked everywhere for a file for this and couldn't find one, I did find some premade ones on ebay for $20-$40… thats a hard pass.
This is a 3-piece design including the main body, the spring tab on the black and decker side, and the separate top plate for the M18 battery to attach to. Special note: you have to drop the nut in around layer 62-65 if printing in .2mm layers. I let it print the support and then just popped it out before dropping the nut in. I ended up also supergluing the latch in so it would hold better as I don't see a need to disassemble this ever.
4 M3x16ish screws (tapped into the plastic) will hold the top plate on (or 3 plus superglue as I did to avoid hitting a wire), and one more M3x10 with a nut attach the spring tab. You'll also need 2x ¼" spade connectors, and 3x fuse terminal connectors (or if you can find the correct part use that).
The terminals on the M18 side are standard spade terminals (though I used male/female combo terminals this is actually harder than using standard males), the ones on the B&D side are fuse holders numbered BX2201-2 on amazon. I had to squish those and then heat these up with a soldering iron and push them into the terminal locations. Far from ideal but my intent is to snap the adapter on the tool and never take it off (without modifying the tool).
A 10k ohm resistor goes between the negative terminal and the one next to it.
99% of this model was taken from an existing M18 to makita adapter, and the black and decker to dewalt to black and decker adapter referenced above (I don't remember where I got the makita adapter as it has been a while), I essentially just sliced off half of each, and aligned them. This is why the design has as many odd artifacts as it does, and its definitely not optimized for support/printing efficiency. I only needed 2 of these for 2 black and decker tools I was given so I can use the many M18 batteries I have on them. If someone wants to clean up the design and make it better please feel free. Theres a lot of hackery here… but I figured since theres not another STL out there I'd publish it.