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You only need three adjustable feet, replacing the original rubber studs. I fitted three 19mm hardwood blocks, screwed and glued to the base to take the Bunnings adjustable feet. They have a nylon base and are adjusted by hand. I have two small spirit bubbles fitted each side of the mount base and one circular bubble fitted in front of the az motor. The bubbles were from eBay around a dollar each. If I'm on soft ground, such as a public park, I use three timber pads, each one has been drilled with a spade bit the same size of the feet halfway through the timber to prevent the mount sliding on the timber. I also have a small spirit level and a digital inclinometer for accuracy.
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