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    Pregraph Tool and Cutter Grinder, Victoria, $457

    Interesting. That's what my eyes were telling me at the time but I thought, can't be, maybe they changed the taper yet again. Well although I can see benefits to a taper, it is what it is & this simplifies making your own hubs with plain bored holes. But now the shaft/hole fit has to be very...
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    making "spherical" surfaces with a boring head (?)

    Yes this is a brain twister to me. If the part is orientated 90-deg to cutter axis then things make intuitive sense but difficult to machine in the real world. As the cutter spins about vertical axis (red arrow) and as part rotates (green line depiction) we get a resultant internal...
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    Fusion 360 complex models, assemblies and component misalignment

    That in a nutshell is exactly how SW works in bottom up mode. Left Pic is an assembly just in a rollback mode for discussion. At this point the distributer body was imported & fixed to default XYZ origin. We need something to start but it can be any part in any orientation that makes sense. Now...
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    Fusion 360 complex models, assemblies and component misalignment

    I haven't run Fusion myself but I have a hard time believing SW is missing anything in terms of types & number of unique mates if that is Fusion speak for joints. I mean they are both perpetually evolving new mate features & shortcuts & this is only one small aspect of choosing one program over...
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    Fusion 360 complex models, assemblies and component misalignment

    Broken links in a CAD modelers program can be problematic for sure. You have to be extra diligent because CAD tentacles extend even further into other nests. If I had a functioning engine assembly & decided to later rename Part 'piston' to 'piston1', the part itself doesn't really care. But the...
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    Fusion 360 complex models, assemblies and component misalignment

    I'll let the F360 users comment on specifics, but 'generically' in 3D CAD you want to be comfortable both ways as dictated by 'best practice' which is kind of specific to the project. I'm about to use SW vernacular but here goes with examples Bottom up assembly. Each part is drawn as a single...
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    making "spherical" surfaces with a boring head (?)

    if I understand, I think I agree. If the objective is to make a spherical socket, then to kind of prove it in reverse, generate the that circular cut profile. Here it is in section view. rotate the stock 45-deg like you have it positioned. The hz line represents a plane representing sweep of...
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    Deckel GK-12 pantograph, $500, Cambridge, ON

    @RobinHood was showing us a beautiful graduated / numbered dial he made on his. He made a good comment - any 3D printer could likely make quite acceptable stylus follower templates which opens the door to all kinds of possibilities. Looks like the posted one comes with a healthy inventory though.
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    UPS gripe

    Well if you mean as a retaliatory 'don't support the crappy business' then I agree. But specific to Travers, they deal with any UPS cross border headaches themselves. Travers USA to Travers Canada (daily orders of which your parts are within) then entirely UPS Canada to your door. I haven't...
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    Pregraph Tool and Cutter Grinder, Victoria, $457

    The (very nicely made) Shars hubs link here. They come in 2 wheel hole ID flavors https://www.shars.com/grinding-wheel-adapter-for-3-4-arbor-hole Hubs are 1:5 taper ratio. So included angle = ArcTan (1/5) = 11.309 deg or 5.65 deg per side My Accusize is 1:10 taper ratio. its undocumented so...
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