Tuesday, September 11, 2007

Deja vu...

  Worked some more on the replacement hub and spokes.  I am really liking the improvement in quality with this one.  To make it easier to have it come out right, I drew the spokes on a piece of wood.  This allowed me to compare my piece to the pattern to make sure it was coming out with nice 90 degree angles.  It also me to make sure all of the spokes were close to the same thickness.

  At this point, the hub and spokes are close to being done.  I need to trim the spokes to length and then put the assembly into the circle of the gear.  Finally, the hub needs to be punched for the clock's arbor.

  Finally today I also removed the first hub and spokes.  It was fairly easy to pop out.  I double checked the outer circle of the gear and it does appear that I can reuse it with the new spokes.

  Here is a photo of the new crossbar.  You may notice at the hub that it appears slightly misshapen.  It is wider across one axis compared to the other.  This is from the forging process.  Once the arbor hole is punched, I may do a bit of filing to even them up.  However, it will have no functional difference on the clock, only aesthetic value.

FirstGear2


  Also in this photo you may notice a white tracing line on one side of the circle.  That shows how much material I potentially would have had to file if I had kept the original hub and spokes.

  The bulge on the left side of the circle is the left over from the forge weld of joining the circle together.  Once all filing is done, it should basically be undetectable.

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