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    Pregraph Tool and Cutter Grinder, Victoria, $457

    Yup, definitely different than my Accusize (year 2017). Interesting. @Don Sipes when did you get yours? I'm wondering if that this is their new 'standard'. The idea I was mentioning could go something like this. (Its actually the propeller drive washer assembly for my radial engine). A...
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    Pregraph Tool and Cutter Grinder, Victoria, $457

    Well, maybe yes, maybe no. The 0.55 equates to the big end of typical taper when its machined. But eyeballing the nominal OD like around pulley ID looks larger & possibly around this size. But I agree, we are only guessing until it comes out. I still think a call to Accusize would be...
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    Pregraph Tool and Cutter Grinder, Victoria, $457

    @Don Sipes I just had a dangerous thought. It might not be too far fetched based on what I've seen of my machine & heard of others. Is there any possibility your spindle that was pulled from Bin-A 'to be tapered' vs Bin-B 'finish tapered'? It would be worth a call to Accusize. If everything...
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    Identifying an odd thread.

    Good to see you persevered. The outcome does not surprise me, often a coin toss. Now we just need to get you set up on an insert style threading bar so you don't have to 'dedicate' your HSS blank. LOL
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    Pregraph Tool and Cutter Grinder, Victoria, $457

    Seems like a common size format for Asia manufactured diamond & CBN wheels in nominal 100mm OD is 20mm ID bore. And from my experience the actual diameters can vary +/- The AO type wheels can vary, some have a nylon insert with 20mm bore, some are just the aggregate & different dimension again...
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    Fun on the mill!

    Get-R-Done haha Just curious is that a Taiwan type 935 mill?
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    Fusion 360 complex models, assemblies and component misalignment

    I read a Catia perpetual license costs 14K + 2.5K annual maintenance, or annual term license of 5.6K. Probably USD. It would be like buying an F1 to get your groceries LOL. Dassault developed Catia & acquired Solidworks some time ago to compete in the, lets call it medium sized market...
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    Pregraph Tool and Cutter Grinder, Victoria, $457

    @gerritv images not loading. Not sure if these in particular. Others in post seem to load ok, but I've noticed this behavior sporadically in other threads.
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    Pregraph Tool and Cutter Grinder, Victoria, $457

    @David I believe so, probably sitting in a box of equally underwhelming parts. If you're asking is it worth buying I would say no. Most of my parts didn't even fit one another as intended, never mind another machine. The side rod is meant to engage a matching hole in the underlying dovetail...
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    making "spherical" surfaces with a boring head (?)

    Yup. I was actually being 'CAD-lazy'. This particular setup can be simulated in CAD with a bit of juggling because A) the cutting geometry = arc sweep of BH is fully defined B) the cut rotation axis = part turning on its axis which in his setup is 45-deg to spindle axis is also fully defined. So...
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