Swingup external threading tool

Gallery, Projects and General > Project Logs

<< < (16/29) > >>

andyf:
The vid was commendably brief, showing all it needed to in those 14 seconds :thumbup:. I'm really glad the tool seems to be proving itself useful, Bogs. Though it wasn't my idea, I passed it along to the group and was worried about having to slink off into the undergrowth if the concept turned out to have any major drawbacks.

Having successfully inveigled you into all the R&D and actually making one, I'll just have to make one for myself.
Hope the damaged shin isn't too painful.

Andy

Darren:
I've been eyeing up a lump of steel tonight sitting idley in the corner probably trying it's best to hide from me ....

So much to do .....

bogstandard:
Gentlemen,

Many thanks for the compliments, but things are not quite wrapped up yet. A couple more tests to do. I hope they go as well as this one did.

BTW, I found the problem with the camera, I had formatted the card a while back but I have never had to do a vid since, so the problem didn't show. I had formatted it to Fat system rather than Fat32.

Bernd,

I have a shoe brake system on my machine, complete with a drum, just like a car, it is very efficient. I thought this was a lot of backlash on my machine since I had set it up, so just how bad is yours?

Andy,

I would just like to thank Mike Cox again for the inspiration to get me to do a bit of R&D on his concept. This has definitely been one of the easiest projects I have ever worked on to get good results so fast. Usually it takes a lot more thinking power. But of course, the clincher was when John came up with the block idea, it got me past the mental blockage that I had. So the glory is nowhere near all my own, but other peoples' inputs and ideas as well.

If it does go on to really prove itself, I honestly think it will transform the way I personally do threading. But that isn't the main reason. Looking at it, and the quickie sketch I did earlier about a much easier design, it could make single point threading much easier for the people who have been scared to try it out before now. This method certainly makes threading at least 50% easier and quicker. It is a shame it can only be used on a lathe with full reverse on it.

In fact, I think a piece of 2" side by 1/4" or 3/8" thick angle iron would be perfect for the main frame, so don't go looking at big lumps of metal just yet Darren.

Bogs

Divided he ad:
Nice :thumbup:

Does as it should as far as I can see.... Nice camera work Stew :clap:

I'll have to look into this threading lark one day...... Suppose I'd best use my 'shop to get that even close to sorted!?

Nice Job John, and then ideas men too :thumbup:

Ralph.

bogstandard:
So now we come to the final part of this R&D exercise. I made up a very complicated camera mount for my machine, it took me ages, about 15 mins of real hard work.

Grabbed a bit of ali from the recycle box (this was a piece from my original slide for the tailstock mounted DRO head).
Two holes drilled, the end one tapped.

Screwed onto the mag base.

Then the camera was screwed onto the assembly.

By doing that, it allowed me to make this vid, all by myself.
I was talking to Stew yesterday about working while other people are in your personal shop space, and nothing ever seems to go right.
This time, no problems, except you will see at the very end of the vid, I ran out of memory on the camera card.
Before anyone comments, I should have swung the topslide the other way for left hand threading, but for this proving job, I left it as it was, set for right hand threading.

Just to prove I was cutting a 40 tpi thread on that bit of 3/32" (about 2.5mm) brass bar, here is a close up.

Well that seems to be the end of this little exercise. The tool cuts both left and right hand, and John's worry about getting close to the chuck is now no longer a worry.

I honestly don't think that swarf will be an issue. Just keep an eye on it, and if any does get in there, it is dead easy to blow or brush it out.

I was going to make another toolholder, based on the design on my sketch, but because I want to get onto other things, I don't think I ever will. This one will do me just fine for 99% of all the external threading I will be doing, and if I come across something it won't do, then I will just do it the old fashioned way.

I hope you have enjoyed this journey on how I get around to and do things. With plenty of forwards thinking and problem solving, and a little help from friends, you can achieve almost anything.

I do hope that a few of you will be spurred on to make the easier version of this tool, I am sure you won't regret it.

Bogs

Navigation

 Message Index

Go to full version