This is why I've not bought into the WallyTractor as an alignment progress. While I have not used it, it appears to be excellent at describing the solution, but not very good at defining the process to arrive at that solution - you're still doing the stylus hokey-pokey.
If you do get the stylus to follow the WallyTractor arc from Point 0 to Point 1....guess what? You've got your P-to-S distance correct and your overhang (effective length) correct. However, you're manipulating multiple variables simultaneously, and this can cause one to gouge out one's own eyes in frustration. Yes, you can perfect your alignment this way, but in all reality, this particular aspect of alignment is simple 2-dimentional geometry and doesn't have to be that frustrating or time consuming.
Also, for the WallyTractor to facilitate an efficient setup, as stated above, the pivot to spindle distance must be within + or - 0.5mm of the pivot to spindle distance inscribed on the WallyTractor. For tables that have a variable-distance mounting hole for the tonearm (like my Teres) that margin or error is pretty tight. If you screw up the P-to-S, you could be playing the hokey-pokey all night (instead of spinnin' vinyl).
Here's my process (using my template).
1. Level the table.
2. Attach tonearm to base. Cut out templates using a razor blade and a straight edge. Fix platter to base using tape.
3. Make sure the head shell is level (when measured perpendicular to the tonearm).
4. Set the pivot-to-spindle distance using the supplied Baerwald Protractor template. The tip of the template should exactly center over the small hole where the tonearm wires come through on the base of the tonearm (specific to an Origin Live Silver tonearm).
The thickness or placement of the tonearm wires may make this impossible. If this is the case, shear off the tip of the protractor. This should compensate for the wires and facilitate accurate alignment. Fix template to platter using tape.
5. Mount the cartridge and preliminarily set the Vertical Tracking Force (VTF). It is recommended to initially set the VTF in the top third of the recommended range. However, at this stage, precision is not critical as VTF will be fine-tuned later in the process. Set the anti-skate mechanism to 0.
6. Set effective length using the template (at point #1).
7. Set offset angle (at points #1 and #2). You may have to *slightly* rotate the cartridge so when looking at the cantilever straight-on the lines at 66 mm and 120.9 mm run right up into the suspension tube.
Note that it is the alignment of the cantilever that matters not the cartridge body (thats why there is only a single line to guide this setup). A Baerwald-aligned cartridge will be nearly (but *not* exactly) square to the head shell on a Rega style arm.
8. Set Stylus Rake Angle (SRA). As a baseline, set the SRA 1-degree forward (top away from the tonearm pivot). Use the SRA Protractor template as a guide.
9. Repeat steps 6 8 until no additional adjustments are necessary to satisfy all 3 steps.
Yes, this process is pretty generic, but it's easier to follow and understand than many I've seen (and tried). If I would print out my template on a mirrored piece of plastic, it would make it an even more powerful tool. Feel free to tell me where I've gone awry.
If you do get the stylus to follow the WallyTractor arc from Point 0 to Point 1....guess what? You've got your P-to-S distance correct and your overhang (effective length) correct. However, you're manipulating multiple variables simultaneously, and this can cause one to gouge out one's own eyes in frustration. Yes, you can perfect your alignment this way, but in all reality, this particular aspect of alignment is simple 2-dimentional geometry and doesn't have to be that frustrating or time consuming.
Also, for the WallyTractor to facilitate an efficient setup, as stated above, the pivot to spindle distance must be within + or - 0.5mm of the pivot to spindle distance inscribed on the WallyTractor. For tables that have a variable-distance mounting hole for the tonearm (like my Teres) that margin or error is pretty tight. If you screw up the P-to-S, you could be playing the hokey-pokey all night (instead of spinnin' vinyl).
Here's my process (using my template).
1. Level the table.
2. Attach tonearm to base. Cut out templates using a razor blade and a straight edge. Fix platter to base using tape.
3. Make sure the head shell is level (when measured perpendicular to the tonearm).
4. Set the pivot-to-spindle distance using the supplied Baerwald Protractor template. The tip of the template should exactly center over the small hole where the tonearm wires come through on the base of the tonearm (specific to an Origin Live Silver tonearm).
The thickness or placement of the tonearm wires may make this impossible. If this is the case, shear off the tip of the protractor. This should compensate for the wires and facilitate accurate alignment. Fix template to platter using tape.
5. Mount the cartridge and preliminarily set the Vertical Tracking Force (VTF). It is recommended to initially set the VTF in the top third of the recommended range. However, at this stage, precision is not critical as VTF will be fine-tuned later in the process. Set the anti-skate mechanism to 0.
6. Set effective length using the template (at point #1).
7. Set offset angle (at points #1 and #2). You may have to *slightly* rotate the cartridge so when looking at the cantilever straight-on the lines at 66 mm and 120.9 mm run right up into the suspension tube.
Note that it is the alignment of the cantilever that matters not the cartridge body (thats why there is only a single line to guide this setup). A Baerwald-aligned cartridge will be nearly (but *not* exactly) square to the head shell on a Rega style arm.
8. Set Stylus Rake Angle (SRA). As a baseline, set the SRA 1-degree forward (top away from the tonearm pivot). Use the SRA Protractor template as a guide.
9. Repeat steps 6 8 until no additional adjustments are necessary to satisfy all 3 steps.
Yes, this process is pretty generic, but it's easier to follow and understand than many I've seen (and tried). If I would print out my template on a mirrored piece of plastic, it would make it an even more powerful tool. Feel free to tell me where I've gone awry.