The Breakroom > The Water Cooler
A Welcome Visitor (Bogs thread relocated)
Darren:
--- Quote from: bogstandard on November 21, 2008, 03:46:06 AM ---
You will be pushed to find better quality at such low prices. The tungsten tipped ones are called Hard Plate drills. Supposedly you can drill holes thru files with them, if that sort of thing turns you on.
I am looking at fitting your lathe with tapered gibs. But that will have to wait until I get a few rush jobs out of the way.
John
--- End quote ---
Blimey John, I know you have mentioned the taper gibs for the mini lathe, (and indeed showed me how to adjust them properly for my mill which I have now successfully done).
But I wasn't expecting you to modify the lathe gibs on my behalf..!!
Now I'm really excited, the original saddle gibs (apart from a wavy bed) must the the worst design area on these otherwise capable little lathes.
The level of upgrade this modification will bring about will truly bring this lathe up to precision status.
I'm stunned at your generosity...... :headbang:
Thanks for the info above, I visited the scrap yard again a couple of days ago and came away with quite a lot of very clean polished SS flat bar 50x10x2000mm. Those drills or at least some smaller pilot sizes might just be the ticket.
All I need to do now it find a way of cutting it into smaller usable sizes when required !! Any ideas, would a bandsaw cut SS ok ??
All I have at the mo is a cutoff saw, messy and eats discs with steel. Not tried SS with it.
Darren
To think I'd almost abandoned it. :bugeye:
bogstandard:
Darren,
For the little extra effort involved, it would be silly not to carry out the tapered jib mod. As they say about a job worth doing. No thanks needed, please refer to Ralph for rules and regulations.
On your little bandsaw, forget the cutting of anything ferrous, it will knock the teeth straight off. Unless you can get a special blade for it, specifically for cutting ferrous. I showed you mine with a good quality, fine pitched wood cutting blade. It easily copes with ali and brass.
Next time you visit, if you remind me, I have a few steel cutting discs knocking about somewhere, they just might fit your monster chopper. Be careful using those grinding chop saws, the metal gets so hot at the cut interface, they can change properties very quickly, and you could end up with a rock hard cut edge. DAMHIK.
John
cedge:
John
While you have the cross slide apart, there is one other small and simple mod you'll want to make. I'm assuming Darren left the bronze lead screw nut with you. Most of the slop in the cross slide is due to the small center screw sliding across the top of that little bronze cube. Drill a small indention in the nut to accept the end of the screw and the screw will index itself when it's reinstalled. This will remove most, but not all of the lash.
The other spot it needs attention is where the lead screw flange is trapped between the bezel of the handle mount. It needs a small brass shim to take up the slack when the two outer adjustment screws are adjusted. The shim worked best on the bed side of the flange.
The two outboard screws adjust the nut tilt to compensate for the loose fit of the lead screw threads. The center screw cants the whole lead screw assembly to remove any play at the afore mentioned flange, on the lead screw. With the screw nicely indexed, it can no longer slide across the top of the nut. Trust me... it was a major improvement to mine. Now, if I could just find the right solution for removing that annoying compound slop.
Steve
bogstandard:
Steve,
Welcome to our little discussions BTW, and many thanks for the tips and fixes. When it comes to reassembly, they will all be carried out as per your instructions.
Then Darren can blame you if it is a load of crap. :) :)
That is called passing the buck. ::)
John
cedge:
John
Cowardice under fire?.... :wack: :clap: The mod is so stupidly simple that I almost didn't do it here. I'd seen mod suggestions that required installing bearings, splitting the bronze nut, moglice tricks of all kinds.... you name it. Each one was deemed futile after it was tried. One lone small voice mentioned this one on a Yahoo board and the poor guy was either ignored or beaten up by the board's "experts". You know the story.
After thinking about what he'd suggested, I decided to give it a try, since it couldn't do much harm. No regrets.
Steve
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