The Shop > Tools

Scrap Yards

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Darren:
Ha, could be  ;D

But for tonight I decided to have a go with this piece from the scrappy



I cut a square off and stuck it in the 4 jaw, drilled and tapped to 6mm



And then stuck it on a bar with a 6mm threaded stub



A little while later it ended up like this





I did make the other half as well, but it's a bit late now and I don't have a pic, will sort one tomorrow.

To my utter surprise this flat steel bar machined beautifully, first time I've had a decent finish with steel. The "free cutting" steel bars I have are awful.
But then it's prob me doing something wrong, speed or something. I'll get there.

I hope you're not all bored with all these pic's, I know most of you are well past all this and have moved onto more exciting stuff..... ;D

I was just so pleased to see the steel machine so well at last, had to tell someone see... ;)


Darren

Brass_Machine:
Darren

I don't think any of us are bored with the pictures. Keep em coming.

Eric

bogstandard:
Darren,

Wonderful stuff.

Remember in my reply earlier in this post about 'weathering'. You just might find that because the material has sat outside for a while, all the stresses have been relieved, hence your much better machining results.

You might also find that by using ground up HSS tooling instead of tipped tooling will give much better finishes.

But if you wanted to stay with tipped tooling, I have used one of these for many years, and as long as you don't use it for interrupted cuts, can give finishes like a mirror. The added advantage is that once one part of the tool gets worn, just turn it a bit and you are onto a new cutting area. You should be able to get about 10 to 15 new faces on it before you have to throw it. Go to the bottom of the page and look at profile tools.

http://rdgtools.co.uk/acatalog/INDEXABLE_LATHE_TOOLS.html


John

Darren:

--- Quote from: Bernd on November 13, 2008, 06:28:50 PM ---I was going to say flywheel, but when you mentioned Ralph, I got to thinking "Ball Turner". I think your right CC. :clap:

Bernd

--- End quote ---

At the mo I'm just getting a feel for turning, not quite ready to start making an engine.
But I'd like to at some point  ;D

Darren:
Hi John,

I seem to prefer tipped tooling. I believe it's because I can up the speed which helps the finish on a plain lathe having to hand feed everything. I have wondered about those round tips several times. Maybe I should invest in one and try it.
Interrupted cuts !! Yep, I lost a couple of tips last night making squares round  :(

My crosslide lead screw is a bit worn, and last night it showed when facing larger diameters.
I was wondering about these and if I could make them fit? The female threaded parts on the slide are easy enough as they are simple brass parts.
I'm not sure if these are the right types of thread.

http://cgi.ebay.co.uk/TR10x2D-Trapezoidal-Spindle-Acme-Ballscrew-Leadscrew_W0QQitemZ280239661742QQcmdZViewItemQQptZUK_BOI_Metalworking_Milling_Welding_Metalworking_Supplies_ET?hash=item280239661742&_trksid=p3286.c0.m14&_trkparms=66%3A3|65%3A1|39%3A1|240%3A1318

http://cgi.ebay.co.uk/TRTAP-M10x2RH-Trapezoidal-Tap-Acme-Ballscrew-Leadscrew_W0QQitemZ220307826465QQcmdZViewItemQQptZUK_BOI_Metalworking_Milling_Welding_Metalworking_Supplies_ET?hash=item220307826465&_trksid=p3286.c0.m14&_trkparms=66%3A3|65%3A1|39%3A1|240%3A1318

I've also been wondering about a coolant setup, it could be rigged for several tools. Do they make a diff and worth the investment?

Darren

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