Author Topic: QCTP for my Stanko 1A616 from 1962 ... (Read 33641 times)

ksor · « **on:** September 16, 2009, 02:15:37 PM »

With interest I read this thread:

http://madmodder.net/index.php?topic=720.0

and desided to "scale up" the drawings to fit my needs and got this made in SketchUp from Google

:

I look for the material for the main part and found this

- and tried to cut off a peace and I succeeded

:

Mounted the peace in my saw and started to "rock'n Roll":

After a while I ended up with this:

ready to make it nice in the mill.

sbwhart · « **Reply #1 on:** September 16, 2009, 02:46:10 PM »

Wow ksor

Thats one chunk of steel

Look forward to following your progress.

Cheers (skol)

Stew

Bernd · « **Reply #2 on:** September 16, 2009, 03:01:40 PM »

Interesting saw. It has coolant on the blade, right?

Seems like alot of memebers are into making their own tool posts. Must be something like Rocker-itis.

Guess we can call it tool-post-itis.

Nice job cutting that by the way.

Bernd

Darren · « **Reply #3 on:** September 16, 2009, 03:06:31 PM »

Blimey, bet that chunk weighed a bit.....

Looking forward to this log.......

Gerhard Olivier · « **Reply #4 on:** September 16, 2009, 03:18:36 PM »

I like it a lot

Big chunk of steel - very nice saw
Looking forward to this one

Gerhard

raynerd · « **Reply #5 on:** September 16, 2009, 03:19:12 PM »

That is one hell of a block of steel!!!

I`m making one of these as well - dovetails are proving problematic but I think I`m getting somewhere tonight! Get plenty of photo`s of your build.

Chris

ksor · « **Reply #6 on:** September 16, 2009, 04:30:08 PM »

Bernd: Yes it has cooliant on the blade - lots of cooliant !

John Hill · « **Reply #7 on:** September 16, 2009, 04:48:41 PM »

Ksor, I have a HSS blade saw too but it turns very slowly, maybe 50RPM, I wonder if it has the wrong motor and should be turning faster?

ksor · « **Reply #8 on:** September 16, 2009, 04:58:26 PM »

John Hill: I don't think so - my saw has a 2-speed motor so the blade - I think - is running about 40 and 100 RPM !

websterz · « **Reply #9 on:** September 16, 2009, 05:32:00 PM »

Quote from: John Hill on September 16, 2009, 04:48:41 PM

Ksor, I have a HSS blade saw too but it turns very slowly, maybe 50RPM, I wonder if it has the wrong motor and should be turning faster?

Nope. you definitely want a coldsaw to run slow.

John Hill · « **Reply #10 on:** September 16, 2009, 05:53:18 PM »

Thanks, thats good news. Mind you I am always in awa at the torque of 2HP running 50rpm!

ksor · « **Reply #11 on:** September 20, 2009, 02:22:12 AM »

Rigged up for milling the surfaces one by one - I had to use conventionel milling (not climbing) because my mill can't do climb milling very well:

Later I found out I had to add more stability:

and I went along with the first face - and it gave me some very big "curling" chips and sounded just right.

The next face - the one pointing down to the vice - gave my nearly no chips att all - and sounded no good - it just distroyed my tool !

I think the plasma cutting had hardened the steel too much for the tool (HSS) - could that be the case ?

sbwhart · « **Reply #12 on:** September 20, 2009, 02:34:58 AM »

Quote from: ksor on September 20, 2009, 02:22:12 AM

The next face - the one pointing down to the vice - gave my nearly no chips att all - and sounded no good - it just distroyed my tool !

I think the plasma cutting had hardened the steel too much for the tool (HSS) - could that be the case ?

The plasma cutting probably has hardened the steel up some

.

Thats a nice slab mill hope you can get a regrind, you could try a TC tipped facing mill to get the hard skin off, or if you've got a shaper try that.

Good luck

Stew

ksor · « **Reply #13 on:** October 15, 2009, 07:00:47 AM »

I got a little longer with the main part

:

I'm NOT so proud of the surface finish, but I haven't got my destroyed cutter grinded yet

- I used another one - I think it's called a face mill - that's why it look so rough !

I used a R6 to rounding the edges and I think that's just the right size.

NickG · « **Reply #14 on:** October 17, 2009, 04:49:27 AM »

Doesn't look rough to me! Is that a centec mill your using? I have one like that with a big facing cutter the same but it is knackered also, leaves a nice ridge down the middle of the cut face on mine!

Nick

ksor · « **Reply #15 on:** October 17, 2009, 05:58:49 AM »

First of all: I'm NOT so familiar with the US/UK-milling-terminologi !

Is this called a PLAIN milling cutter ?

I think it was the right cutter to use to the job, but unfortunately I destroyed it because of the plasma cutter had hardened the steel too much for HSS tools.

I now have to arrange some grinding rig to get it sharp again - but it'll have to wait.

I then used a big "end cutter" - I think it's called - and it gives me two problems:

1) a much more rough surface - witch you clearly can see here:

2) it's not big enough to cover the whole width of the peace, so I have to mill it twice - and you can clearly see the "ridge" here:

- you can SEE it but you can't FEEL it !

The PLAIN cutter didn't give me this because it was so wide it covered the whole peace and the surface was nearly

like a mirror.

Darren · « **Reply #16 on:** October 17, 2009, 06:32:28 AM »

Hi Ksor,

The first cutting I think here is called slab milling, or side milling on a vertical mill. The second as you rightly say is end milling.

That slab milling of yours gives a wonderful finish

How did you cut the dovetails, I'd like to see the cutter that did that so well ..

ksor · « **Reply #17 on:** October 17, 2009, 07:25:31 AM »

Here is the cutter I used instead of the destroyed slab cutter:

I called it a "very big end milling cutter" - is that the right term in US/UK-milling-terminologi ?

And here is the one I used for the dowtails - and I cut each of them in one procedure - 25mm X 15mm.

Darren · « **Reply #18 on:** October 17, 2009, 07:29:07 AM »

They look like some serious tools you have there, I see now why your dovetails came out so well

Thanks for showing.

There seems to be a lot going for horizontal mills, if it wasn't for the room I'd consider one but I have enough on my plate ....

bogstandard · « **Reply #19 on:** October 17, 2009, 08:02:51 AM »

Darren,

You should be able to get a right angle head for your Beaver, I saw one for sale the other week on one of the second hand machine retailers sites. Not cheap though. Maybe a standard Bridgeport one would fit.

I am going to Chester UK in a few weeks to have a look at one to fit my mill. But the dovetail attachment will need thicker gibs, because mine has a narrower mounting. Should be a fairly easy mod job.

http://www.chesteruk.net/store/horizontal_milling_attachments.htm

John

Darren · « **Reply #20 on:** October 17, 2009, 08:09:35 AM »

That's very interesting John. I like the idea of holding cutters at both ends but wouldn't want to sacrifice a vertical mill in order to have that facility.

I will look into this at a later date, do let us know how you get on John

NickG · « **Reply #21 on:** October 20, 2009, 09:29:52 AM »

Am thinking I maybe should keep my horizontal now!

Darren · « **Reply #22 on:** October 20, 2009, 09:44:20 AM »

I would, just depends if you need the funds tied in it or the space it takes for something else?

NickG · « **Reply #23 on:** October 20, 2009, 10:50:37 AM »

Yeah that was my initial thought. My vertical can do most stuff and more than the horizontal can do so that money would be better put into more other things such as rotary table, power hacksaw etc.

Darren · « **Reply #24 on:** November 02, 2009, 08:17:26 PM »

BUMP....

How is this one coming along? Not seen you around lately

News:

Author Topic: QCTP for my Stanko 1A616 from 1962 ... (Read 33641 times)

bogstandard