Avoid obstacles and measure distances with the ultrasonic range finder. Device emits a high-frequency sound wave that alerts the robot to things in its path. A Programming Kit is needed to change the program in the VEX Controller. Measure distances from 1.5in to 115in. Detect obstacles using high frequency sound waves.
If it's a gallery, they will usually expect to be paid 50% - 60% of the selling price. If you need to be paid $499.80 for the quilt, that means the person the gallery is selling it to will need to pay at least $999.60 for the quilt.
For the sake of argument, you can reasonably expect to find decent quilt fabric in the $4-$6 yard range from some places. This still leaves wiggle room for a decent hourly wage and still have a baby quilt in the $100 range.Buying 3 yards of fabric at $4/yd versus 3 yards at $25 / yd is a huge difference. I only charged for materials used. 2  That is, I took the square area of the fabric in inches that was actually used in the quilt. 3  I then divided that number by the number of square inches in a yard of fabric that has a forty-two inch width, to determine the total yardage for each fabric.