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Tarsacci shaft (aftermarket)?
Posted by steveg
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Re: Tarsacci shaft (aftermarket)? March 12, 2021 12:25PM |
Sounds good, dew. It sounds like consensus is that the 304 stainless button, for middle-to-upper shaft connection, will be sufficiently corrosion-resistant, but not perfect; based on all of the discussion, I'm OK with that. I was not happy about regular spring steel, but this is a reasonable compromise, I think. But yes, I want to go with no button/no holes for the middle-to-lower shaft connection. I'm sure you'll give that cam lock a true workout, dew! 
Small update...
Drawings for the tubes (diameters, hole location, length, etc.) have been submitted to the tube suppliers to confirm their ability to produce (main question being the middle tube -- specifically, the "tapered" end, as it reduces from "Tarsacci diameter" at the very top end, to "Equinox diameter" for the remainder of the tube). If they can successfully produce the taper/reduction, then there are no remaining obstacles. I've specified matte finish, vs. glossy, to better match the Tarsacci upper shaft.
The drawing for the lower rod plastic "clevis" has also been submitted, and a pricing quote was returned to me -- which also represents a confirmation that those parts can be produced per my design. Orders will be placed for both 10 sets of tubes, and 10 clevises, within the next few days...which will permit production of the first 10 "prototype" shafts. Once beyond the prototype stage, with ample user feedback, I can move the shafts to regular production -- and at that point I'd make extra lower rods available; since there are now two coils available, some folks may want an extra lower rod, to keep attached to their second coil.
FYI -- the middle shaft is designed to be about 3" longer, than on the Tarsacci middle shaft (though can be "custom made" to whatever length someone desires). The lower section (which is 21 1/2" long on the "stock" shaft) can also be produced to user spec; the tubes I'm purchasing for the lowers will permit lengths up to about 31" to 32" long. Most users have said they need about 6" total extra length, as compared to the stock shaft, so I've ensured that this will be EASILY do-able, with the tubes I've ordered.
Steve
Small update...
Drawings for the tubes (diameters, hole location, length, etc.) have been submitted to the tube suppliers to confirm their ability to produce (main question being the middle tube -- specifically, the "tapered" end, as it reduces from "Tarsacci diameter" at the very top end, to "Equinox diameter" for the remainder of the tube). If they can successfully produce the taper/reduction, then there are no remaining obstacles. I've specified matte finish, vs. glossy, to better match the Tarsacci upper shaft.
The drawing for the lower rod plastic "clevis" has also been submitted, and a pricing quote was returned to me -- which also represents a confirmation that those parts can be produced per my design. Orders will be placed for both 10 sets of tubes, and 10 clevises, within the next few days...which will permit production of the first 10 "prototype" shafts. Once beyond the prototype stage, with ample user feedback, I can move the shafts to regular production -- and at that point I'd make extra lower rods available; since there are now two coils available, some folks may want an extra lower rod, to keep attached to their second coil.
FYI -- the middle shaft is designed to be about 3" longer, than on the Tarsacci middle shaft (though can be "custom made" to whatever length someone desires). The lower section (which is 21 1/2" long on the "stock" shaft) can also be produced to user spec; the tubes I'm purchasing for the lowers will permit lengths up to about 31" to 32" long. Most users have said they need about 6" total extra length, as compared to the stock shaft, so I've ensured that this will be EASILY do-able, with the tubes I've ordered.
Steve
