Bow Hold and Pressure

Bow hold is the most difficult part of learning to play the violin.

Here are some online resources to refer to when you are practicing.

How to Hold the Bow

How to Hold the Bow Relaxed

Bow Pressure Technique Exercises

Bowing Techniques

• To make more noise and project more do NOT press much harder on the bow; rather move your bow faster. The weight of your bow should be sufficient for an expert violinist. Sound=speed of the bow.
• Do not tighten bow too much; the proper tightness is when the hair is no more than a centimeter from the wood of the center of your bow.
• Too much rosin can give a scratchy noise. It is suggested that you rosin your bow once every 5-9 hours of playing.

Source: http://www.wikihow.com/Use-Exquisite-Bowing-Techniques-on-a-Violin