Welcome to Tribbeck.com

Steel Cobra

Day 4 - Sunday 16th February 2003

Now that the legs were joined and pivoting nicely, the next stage was to mount the windscreen wiper motor to the frame. This ended up being fairly tricky to do.

The motor uses three bolts around the central spindle to mount to the frame. The first part of the mounting plate was made from the same material as the frame:

Click to download

Then, a section of right angle steel was welded into place:

Click to download

And in position:

Click to download

Unfortunately, this wouldn't place the motor in the right place, so a different solution was used:

Click to download

A connecting rod was made from the 8mm bar used yesterday, with a drilled M8 nut at one end, and an M8 bolt welded to the other. This bolt connected to a drilled M8 nut welded to the front nose leg's connecting rod. The new rod was then placed to conect the motor to the leg assembly:

Click to download

Now everything was connected together, it was time to start the motor up. Unfortunately, I'd overestimated the length of the motor connecting rod, and it needed trimming shorted. However, it did work eventually:

Click to download (474K MPEG)

If you look closely at this, then you can see that the legs move too far upwards, and not down enough. A lot of experimentation was performed, involving rewelding bits, cutting them down to size and so forth. However, in the end, it worked:

Click to download (475K MPEG)

Now it was moving, it was time for the big question - will it support its own weight?

Click to download

Yes, it does. Here are some more pictures of it resting:

Click to download Click to download Click to download Click to download

Unfortunately, the front leg is a little long, but that can be sorted out in the next session, where the feet will be made.

Updated: 2013-03-24 11:43:56 | Comments: 0 | Show comments | Add comment
© Copyright 1997-2013
Tribbeck.com / Jason Tribbeck
All trademarks are the property of their respective owners.