Whether they're used to secure shower shelves or to help keep washroom clutter out of sight, suction cups are a surprisingly useful addition to any bathroom. However, suction cups are typically ...

But it all comes together at the suction cup or pad. This seemingly simple device ... Oily surfaces: µ = 0.1. • Moist or wet surfaces: µ = 0.2 to 0.4. • Glass, stone, plastic (dry): µ ...

Step 1. Let’s start by just determining the number of suction cups needed. Typically, safety factors of 2 to 5 are used and, in this case, a minimum safety factor of 5 is needed. So the number ...