The bamboo rod maker’s best friend to get rid of bends and displace nodes.  When heated sufficiently bamboo becomes quite malleable and can be straighten.

 

Here is a node that needs some work.

 

The same node with relief space filed away on the underside.  Time to get this node really hot and.....

 

 Put it in the vise for a few minutes to cool off.

 

The same node displaced.  The little high point left will be dealt with through sanding as the building process continues.

 

A strip ready for the next phase.   Three nodes displaced, 45 more to go.