A system for manufacturing a straight tube Coriolis Flowmeter. The system of this invention provides a process for connecting a flow tube assembly including a balance bar and a flow tube to at least two points inside a casing. The process provides an inexpensive way to use localized heat to affix the flow tube assembly to the two points. The use of localized heat reduces damage caused by expansion of components caused by heat as well reduces damage to electrical components in the casing.