repivoting a waltham 1857 pallet arbor

[syfre]

Broken pallet arbor pivot ? You have two options : repivoting or turn a new arbor.

I don't have the stuff and the skill to turn between centers, so i tried repivoting :

1. True the broken face

2. Mark the center (use a x20 eyeglass )

3. Drill (0.3mm) with a carbide drill on the lathe , depth around 2 to 3 times the diameter of  the drill

4. Turn the plug, make some test and try until you find the right diameter (you must be 1/100 larger than the hole). Add a notch at approximately the dimension of the pivot plus the depth of the hole

5. Set the plug at low speed until the notch break (don't forget to add some Loctite 603)

6. Secure the plug with a light hammer

7. Finish the pivot (0.18mm)

Drilling on the lathe, i use a ER11 collet holder in the tailstock from GG tools, go very very slowly.

Finished pallet, unfortunately i broke a stone in the process and had to replace it,  i believe it's a shock with the tool rest when finishing the pivot , so be very  careful !

 

 

 

[matabog]

nice!

[jdrichard]

Very cool instructions


Sent from my iPhone using Tapatalk Pro

[vinn3]

masterful machine work AND the proper tools.  vin