2016-02-28 (Su) Simple Recumbent Bike Without Welding

The joints made yesterday were attached as hanging pieces. This seemed the most logical way to attach them since gravity and pedaling pressure would push them down. This was a secure method of attaching the pieces but the upper frame was still too low and could allow the pedals to interfere with the front wheel.

Joints attached to upper frame

All bolts were loosened and the joint was spun 180ยบ so the upper frame would point up more than before. Clearance between the pedals and wheel was increased, hopefully enough to clear feet from the wheel.

Joints attached upside-down for elevation

Hardware wasn’t aligned properly so the upper frame was not pointed correctly. Washers had to be added to hold the frames parallel. The washers helped but added distance between the bike frames. This wasn’t a problem for leg clearance.

Upper frame not parallel to lower frame

Distance between the bike frames lead to a small problem with the short threaded rods being used. They were too short to reach between the fastening hardware on each side. This can be quickly solved with long threaded rods or, most likely, trimmed bolts.

Threaded rod too short

To do:
  • Permanently attach upper frame
  • Remove cranks from lower bike
  • Run chain between cranks and wheel
  • Construct idler sprocket
  • Test
  • Strip pink paint
  • Repaint

The rest of the posts for this project have been arranged by date.

First time here?

Completed projects from year 1.
Completed projects from year 2



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2016-02-28 (Su)

Comments

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