Lo-Fi's Quorn tool and cutter grinder build (pic heavy)

I'm with you on that one. Why do you say the Quorn is more capable?
The Quorn has more useable range in its tool swing, therefore a broader work envelope. IMHO it's a step closer toward the Cutter Master in that regard. The Deckel does not have much room when the workhead axis is pushed past the travel axis in the direction of feed for grinding certain angles, and the Quorn looks to have more space there. The Cutter Master goes a full 180 degrees.
 
Got a few more jobs buttoned up:

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It needs engraving and the index holes drilled now, which is a job for the dividing head. Looking forward to that.

And started on my spindle:

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This started as a commercial ER20 straight shank collet holder. Some grade of tool steel, but not crazy hard. I've designed for Nachi 7003 CDUP DB ground pair back to back at the business end supported by a shielded 6003 to take the pulley side load. It's basically a miniature Bridgeport spindle - I'll post the drawings later. At 17mm diameter journals it's quite a bit beefier than the somewhat skinny original design with magneto bearings and absolutely positively located by the precision nose bearing pair - no spring loading needed. External diameter will be 40mm, which is about as much as the wheelhead casting can take. It's demountable, of course. The spindle itself has come out well, so hopefully it'll be quite capable as a mini milling spindle too.

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I spun up a thread for the spindle build in its own right:


It's coming along nicely:

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This is fantastic work! I don't feel like I have the patience for this. Hey what is "silver steel"?
 
This is fantastic work! I don't feel like I have the patience for this. Hey what is "silver steel"?
Thanks! It's kinda trying hitting tenths on a knackered Myford, but rewarding when it does go right.
You'd call it Drill Rod Stateside, I believe :)
 
Detail in the spindle thread, but the spindle is done and came out well:

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TIR is about 6 tenths (as well as I can measure) before re-machining the taper with the spindle running it it's own bearings. I'm hoping for sub-tenth runout once that's done.

I feel like getting some mill time in, though, so might finish up the workhead castings and get the spindle and motor mounted up tomorrow.
 
More stuff happened, like engraving the graduations and drilling the indexing holes:

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The motor go mounted up:

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Many split collets got made, a pulley found and modified and the guard mostly machined:

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It's looking rather good if I do say so myself:

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I'm waiting on some proper fasteners for much of it.

Still to do:

Micrometer mount for advancing the work into the wheel
Machine a die to punch and press the brass dust cover caps
Belt guard
Spindle pulley
Clean up to paint
Manufacture wheel mounting hardware
 
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