Rake-and-scrape Rake-and-scrape Rake-and-scrape is a genre of music native to the Bahamas. Its main instruments are associated with the Goombay drum, Accordion also known as a Concertina, and a Hand saw. In 1886 an article in the Nassau Guardian mentions the usage of the Banjo, Drums, Concertina and other instruments during a celebration by Black Bahamians. The Concertina is also referenced to be in use in Nassau by Black Bahamians by William Drysdale in his book "In sunny lands: out-door life in Nassau and Cuba pg 29" written in the early 1880's. William Drysdale writes "They were three of a kind
Rake angle Rake angle Rake angle is a parameter used in various cutting and machining processes, describing the angle of the cutting face relative to the work. There are three types of rake angles: "positive", "negative", and "neutral". POSITIVE RAKE:-A tool has a positive rake when the face of the cutting tool slopes away from the cutting edge at inner side. NEGATIVE RAKE:- A tool has a negative rake angle when the face of the cutting tool slopes away from the cutting edge at outer side. Generally, positive rake angles: Negative rake angles, by contrast: A zero rake angle is the easiest