Showing posts with label recumbent. Show all posts
Showing posts with label recumbent. Show all posts

2012-07-09

repairing a recumbent exercycle

6.30: mis.gear/exercycle/chair`stem`weld failed:
. the Marcy exercycle's seat weld failed!
and, inspecting the weld area,
the reason is obvious:
they had the weld strengths reversed:
they needed only light tacks
in the back,
but a good strong seam in the front
because that is getting
a lot of lift pressure;
instead there were only
2 tack welds in the front,
so when the front tacks snapped apart,
then the seat pitched backwards about half a foot .

6.30: proj.gear/exercycle/
recovery from chair`stem`weld failure: