So you'd like to have a nice blended margarita out in the middle of nowhere? So did I. All you need is gas trimmer and a blender to make blended drinks in remote areas. Of course, I'm still working on how to make ice without electricity.
Step 1: Parts is Parts
You'll need a gas powered weed wacker type trimmer. If you use an electric trimmer, you've pretty much missed the point of this project. You will also need a blender of course. Mine had a plastic base so it was really easy to cut up with a hacksaw.
Here's what I used to cook up my gas blender. Your mileage may vary.
1 ea. Gas engine
1 ea. blender
4 ea. 10-24 locknuts
4 ea. 10-24 x 3/4" bolts
8 ea. size 10 washers
6 in of 1" diameter EMT electrical conduit
1 ea. 4mm x 20mm metric screw
1 ea. 1 foot x 3/16" square bar stock
screwdriver with various bits (torx, philips, flathead)
channel lock pliers
dremel with cutting disks
friend with welder
Step 2: Preping the engine.
Take off all the unnecessary parts off the trimmer: the shaft and the head. The output shaft of my engine received a square shaft so I bought a foot of 3/16" square barstock from the local hardware store to use as a spindle. The base of my engine is also nice and flat so I didn't have to modify the bottom to keep it standing upright. I think I will add rubber feet to the bottom to protect the engine from scratches when operating.
Step 3: Preping the Blender
Take apart the blender. you'll need the pitcher, the receiver for the pitcher, and the toothed 'gear' that meshes up with the bottom of the pitcher.
Unscrew the base and open 'er up.
Unscrew the toothed 'gear'.
The motor on my blender was screwed to the top half of the base with four screws hidden under little plugs that I had to drill out.