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Correction.? I meant Adept "also made a small lathe...", not "almost made a small lathe..." Don't know why my brain is making such mistakes.? Must be age. Incidentally, for those who may not know,

Remember you will need the collets for this to work Get Outlook for Android<https://aka.ms/AAb9ysg> ________________________________ Sent: Saturday, December 14, 2024 12:35:02 PM To: [email protected]

What is the shape of the desired grove? Is it a triangle? If the use of a mill is available, then I would use a 45 Deg dovetail end mill to cut the grove in the column. Lay and clamp the column on

Yes.? Shapers were once pretty common.? The production drawback was the time wasted on the back stroke which, of course, does no cutting.? They are designed (usually a straight mechanical design

Cutting a grove on the milling column, a couple of methods come to mind.? You could use a carbide blade on a table saw, lock the column so it couldn't rotate and make a couple shallow passes with the

There is a Tapmatic 70x Reversible Tapping Attachment #10-5/8 Capacity up for auction on shopgoodwill.com This might be useful for someone who has a larger lathe, I have a DB200 so this is to big for

Ah, like this: https://www.youtube.com/watch?v=SA_i5-kKv3s (Yet another machine I never knew existed! :-)

Long-stroke metal shaper. I've got a 10" Lewis shaper, and that would be too short, I think. Close, anyway. Grabbed my milling column for the DB200, and it's 11-1/4", or about 286mm. The collar is

Thanks, that is impressive. Definitely something sturdier than a Unimat!

I had seen more than once examples of making a keyway using a lathe like a shaper.? By traversing the carriage back and forth manually. Found this video showing exactly that.

Thanks Richard, and for the link. The page on ‘Involute Broaches’ shows some tooling of triangular section, looks like that is likely. Back and forth I guess, with a constant downward pressure.

I would think a custom spline broach would do the job. They can be ordered in standard or custom shapes, but are not cheap. Spline broaches can be made to order in many complex shapes. Spline broaches

We’ve had some discussions lately touching on the marvellous triangular gib, which got me wondering - how would you machine a shaped groove internally in a tube (along it’s length)? I’m thinking

You might not be aware, but issues with the effectiveness of the ‘keep plates’ have been discussed a few times in the forum, most recently (just the other day) in this thread (

Hello, All. I'm new to the forum. I need to make new keep plates for my Emco Unimat 3 lathe cross slide. Any suggestions about what material would work best? Thanks!

Hello: You're welcome. Yes, of course it is feasible. If I could do it, you can too. But it is not enough. I may have not properly explained this problem some / many (?) U3s have, so I'll try again.

Thanks a lot for this, Julius, Making a pair of new brass gibs seems feasible enough. Just one question about the set screws (gleaned from the Sieg) - would this mean installing a set of excentric

Thanks Keith, Your point about the upward movement is appreciated, I will experiment a bit and hopefully can keep all of you posted. But first of all, I will check whether shimming the carriage/?ross

Hello: I have the same attachment but as I use taps and dies for most everything, I have only tested it once to see how it fared with the turning of an external M14x1.0 thread. It worked quite well

I was thinking of trying this myself - I can see some advantages. A possible snag is that the cutting forces will be acting upwards, lifting the carriage off the bed. Check for any slack movement