A Wallaby of my own.

[steamer]

Here's the pictures.....I'm really chuffed when one of my tools solves a difficult problem so easily.








Dave

[zeeprogrammer]

I've seen several posts and threads about making keyways, broaching, or similar.
I can't figure it out.

The part to be cut is in the chuck.
The tool is in the post.
The chuck is not turning.
You just move the carriage in and out to make the cut?
If that's right...what does it feel like? How much pressure?
Is there a video somewhere that shows this?

Really feeling like a dummy here...but had to ask.

[steamer]

Zee,

If you look at the second picture above , the tool is held in a reciprocating ram that is moved by a hand lever.

This ram is mounted on my AXA tool post

It strokes in and out of the work.   As I stroke the ram in and out of the work, I put feed on the cross slide ...a few thousanths at a time on the cross slide.   The tool is in the shape of a "D"   with the vertical leg of the "D" facing you.

As I crank the cross slide out, I am reciprocating the tool in and out.  It cuts on the in stroke.

Tomorrow, I'll try to put some sketches together that show what is going on.

Dave

[swilliams]

Good one Dave. Who needs a broach 

Steve

[zeeprogrammer]

So it sounds like what I poorly described?
You're moving the cutter in and out (with x changing by a few thou) and the part is stationary.

BTW Do you get any sleep? I see you at 5:30 or 6:00 in the morning and here it is nearly midnight.
I'm surprised I'm up this late. My excuse is watching a movie with one of the daughters.
But I'm off to bed. Today was all about earning my meals...cleaning house...replacing a socket...fixing a faucet leak. Well worth it. Them's good meals!

Tomorrow is machining time!!!

After I earn my next meal. 

[tel]

I've seen several posts and threads about making keyways, broaching, or similar.
I can't figure it out.

The part to be cut is in the chuck.
The tool is in the post.
The chuck is not turning.
You just move the carriage in and out to make the cut?
If that's right...what does it feel like? How much pressure?
Is there a video somewhere that shows this?

Really feeling like a dummy here...but had to ask.

Yeah Carl, you pretty much got it - light infeed is the order of the day, but you can do internal and external keyways, splines, gears, all sorts of things using the method. Here's a pic of my lash up, a bit agricultural, but it works a treat.

[steamer]

Wot Tel said!

I index the spindle with my indexing attachment.  There are other ways....but it's one of the reasons I made it.

I sleep about 5-6 hours a day.....Welcome to my life..

Oh buy the way Zee....if your reading it then...your up too ....right?......

Dave

[steamer]

A better photo...



Dave

[steamer]

A couple of pictures of the attachment might help with the explaination too.





This was built based on an old design I found in ME, which mounted to the cross slide.   I thought....what the hell, lets just mount it to the toolpost.   It has a 7/8" ram.   If you make one...go to 1".   It will be much stiffer.

I need to earn my meals today painting my daughters bedroom....pink!....    What we do for our kids......

Dave

[swilliams]

Wow - you've sure shown how useful the AXA can be Dave. I have ambitions to get a slightly bigger lathe, I know how I want to set it up now.

Steve

[steamer]

Thanks Steve.  I've been working on this for a while.  I use the filing rest a lot.  The key seat cutter I don't use often, but when you need it,,,,,man is it handy!  It took 10 minutes to cut the square,,,,and about 30 minutes to make and harden the cutter....BUT now I have the cutter...so eventually....at my estate sale, there will be a large selection of cutters.....

Dave

[zeeprogrammer]

Thanks Tel and Dave. The pictures are excellent and now I understand.

Odd thing...when I saw Dave's pictures I mostly saw the QC and was still left wondering.
I didn't realize there was more of the picture to the right until I hit the reply button.
When I went back to the thread and scrolled down to the end of the post, then I saw the scroll bar to see the rest of the picture (and your watermark - neat!).

Just mentioning this for others to remember there may be more to the picture than shows.

[steamer]

Glad that helped Zee....I'm always torn between resizing a photo...and leaving it large and easy to see....

but if it's alright...I'll resize ....

Dave

[zeeprogrammer]

No need to resize on my account.
It's just confusion on my part. I key off scroll bars and other indicators.
I use different monitors and in some cases the forum may show with a scroll bar and in others not.
So sometimes I automatically think there's more and other times not.
Apologies for the side trip here.

P.S. Please put me on the mailing list for your estate sale. 

[Don1966]

Thanks Dave for the Photos and lesson, I need to make one of those.
Zee I found this on Mikes web site http://mikesworkshop.weebly.com/toolpost-slotting-tool.html
I believe it is the same kind Dave was using.

Don