For those using my version 1 drive section (for robots 300 lbs and under) and you have the B9 Creations soil sampler and are using Eric’s tread sections, this is the only way to install it. There are some modifications that you will need to make to the face plates of the sampler so it will mate correctly with the drive section. Once this simple and easy modification is done it will fit perfectly. If your robot will be over 300 lbs then you will have to go with a more powerful drive section. Since the version 2 drive section has bigger and more powerful motors the existing soil sampler by Mike Joyce will not fit. I could hack up Mike’s existing frame and still use his internals but I decided to design a new soil sampler because Mike no longer offers a soil sampler. I will also add some new capabilities to the soil sampler. Like actually being able to obtain a soil sampler (what a concept). This one will have 2 settings. 1 for indoor “show” use. That setting will allow the sampler tube to come out to the floor, spin and retract like the original. The 2nd setting will actually extend the sampler tube to go below the level of the floor and drill down into the ground. I thought it would be nice for the environmental robot to be capable of actually doing his real/stated job. In order to accomplish this I will be using a 24v power drill motor with clutch. The 2nd setting just extends the sampler an additional 6″. There is also a small suction tube/vent in the drill tube assembly to aerosolize the dirt for analysis.