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.
Also, the crib quilt should be slightly larger than the mattress it will be used with. Many quilters use fabric and batting sizes as guides for the size of a baby quilt to avoid piecing the quilt together or adding edging to increase the size of the quilt.