[Sgraff_SRHS06]

Advice to stay underweight:

Use ligher materials whenever possible, but use metal for things that have to be more robust, such as turrets, drive, and moving parts.
Use PVC for nonmoving parts, such as bins.
Weigh the parts of your robot, and your robot at each substage of building.
Don't use pneumatics.
Budget your weight and keep to your weight budget.
Remember, design each part with weight in mind. A well-designed, well-built robot should not have to deal with a weight problem.

Advice to get underweight if overwieght:

Make Swiss cheese (something that's already been said way too much)
Don't use more motors than you need.
Keep your frame simple.
Look for lighter alternatives to what you have. This invovles doing a bunch of research.
Remove unnecessary parts