About: http://webisa.webdatacommons.org/413595966

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Alignment of the supports for welding was done by putting the shaft on a long 2x4 jig using its edges for straightness. [Could have been done better.] The ball is a hollow steel ball filled with lead with a 1/2 rod welded to it.
http://www.w3.org/ns/prov#wasQuotedFrom	mikegigi.com