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How does the collet and work come apart, do you hit it with a mallet? The conventional collet nut has a self ejecting feature. I do see that this design would be really useful when the block is held

Charlie, what 3D printing software are you using? With Marlin you could probable use Gcode to control your fans. Ralph

Hello, All, Just a mention to those of you who use 3D printers.? John Lindo has found that precise control of the cooling fans in a 3D printer is very helpful in making especially the more difficult

Yeah, I have some 5C blocks, square and hex but nothing for my ER20 collets, I have making some ER30 blocks on my list.

A hearty welcome to the 7 new members who have joined this week. including 1 from New Zealand. I hope you will find this group informative and useful. Please feel at home with a great bunch of members

Ralph. see link, it?s a typical Stevenson Block you can purchase from Arc Euro.UK and many other tool houses. Note the overhang, also if holding the blocks horizontal in standard vise, the nut is

I already fixed the espousal question here: I printed parts for the dishwasher that kept it going until we could afford to replace it. Thingiverse.com had a good selection of wheels, and some SS

I like the internal nut, there has to be less overhang as Richard said, got them on my list.

Bill in OKC, You can't officially steal it from me, as I officially stole it from Hobby Machinist!? I think it generates some good exchange of ideas wherever it is.? And maybe, just maybe, it will

Hi found another pic. The nut is effectively twice as long as the original? and so far pleased with effectively no backlash. I don't know about the longevity of the delrin but I can make inserts

Hi i liked your conning tower idea but I was already making a special nut with a delrin? insert see pics I apologise for poor quality and detail. Essential I used a 20 x 16 x 30 steel block with

As far as I am concerned it is solely to reduce the overhang of the bar from the clamping point in the vice. I made this one in steel but will make a Hex version in Aluminium as I have stock. Richard

As Richard has brought the topic of the Stevenson Blocks into the forum recently, and very nicely made. I have taken the liberty to enclose pictures of my 3D box to securely hold my Heinz 57

Les. Playing catch up with the forum. Are you now OK with the principles of the "conning tower" nut. I called it that as it looks like a submarine LOL. I see Charlie attached some good photo?s, this

Just finished making some new High/Low gears for the Real Bull mini lathe. Standard RELS surfacing and facing the blanks. CNC cut the teeth 12 T 20 T 21 T 29 T. The 12 T 20 T were cut separately and

Charlie Excellent. I will add to it. Thanks -- John

Richard Very nice. Can you please explain to the forum members the reasoning for an internal locking nut. as opposed to the "standard" external nut. Cheers -- John

Not really Ralph. The RELS handled all taper cuts and threading. I made the bronze "screw" first. I screw-cut the internal thread and tried the "screw", a bit tight so I re-cut the internal thread

Nice Richard, that inside thread must have been a challenge. Ralph

Today and yesterday in fact, made one of these ER32 collet blocks ( I did not make the actual collet ). Quite pleased as the concentricity between a ground bar in a collet and the faces ended up at