Author Topic: Schaublin corner  (Read 2416 times)

Online sco

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Schaublin corner
« on: April 25, 2019, 09:07:34 PM »
I've been quiet for a while but I've not been idle - I've given my workshop a major re-work; the floor has been insulated along with the walls, more electrical sockets added and a new work bench constructed - it's still topsy turvy and I now struggle to find anything but it's almost finished.

I've also purchased a new mill - a nice companion to my 102VM, it's still early days and I haven't cut any metal with it yet but hopefully that will change soon.

Simon.
Ars longa, vita brevis.

Offline Admiral_dk

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Re: Schaublin corner
« Reply #1 on: April 25, 2019, 09:36:04 PM »
Improving the shop comfort can be a very important move  :ThumbsUp:

Adding a Schaublin Mill to the shop is a fantastic bonus too - so congrats all around  :cheers:

Quote
it's still topsy turvy and I now struggle to find anything but it's almost finished.

In this case, I'm sure you will adapt without too many complaints  ;)

Offline b.lindsey

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Re: Schaublin corner
« Reply #2 on: April 25, 2019, 10:45:05 PM »
The new workbench and mill look great Simon. The topsy-turvy will sort itself out in time too no doubt.  Congrats on the upgrade to the shop!!

Bill

Offline 90LX_Notch

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Re: Schaublin corner
« Reply #3 on: April 25, 2019, 11:03:23 PM »
Simon-

One word, envious.

-Bob
Proud Member of MEM

My Engine Videos on YouTube-
http://www.youtube.com/user/Notch90usa/videos

Offline Tennessee Whiskey

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Re: Schaublin corner
« Reply #4 on: April 25, 2019, 11:43:13 PM »
From models to instruments, you should be well “tooled” :cheers: :ThumbsUp: :ThumbsUp:

Cletus

Offline Florian Eberhard

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Re: Schaublin corner
« Reply #5 on: April 27, 2019, 01:44:11 PM »
Hey Simon

Very nice indeed! I am kind of in the same state - still working on my new shop. I guess I should post some pictures too somehwen in the next time - after mentioning it a couple times  ;D
I hope you geto to use it as soon as possible and wish you lots of fun with your new milling machine!

Florian

Online sco

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Re: Schaublin corner
« Reply #6 on: May 18, 2019, 04:34:58 PM »
Thanks guys! 

This week's job has been to strip, paint and re-assemble the rotary table that came with the mill, after a good clean-up I masked up the main body and applied a couple of coats of paint.  The table has some nice touches - there is a tiny grub-screw that acts as an adjustable stop so that you can quickly disengage and re-engage the worm without having to adjust it.  The underside of the table has twelve holes that a pin engages with for quick and simple dividing - the pin has a rack cut into it so that it can be raised and lowered by a lever, the lever has a sprung loaded brass plunger that bears on it to provide some friction.

Anyway it all went back together without drama although I suspect it would more useful to have a handle and graduated dial rather than the indexing plates so going to have a think about making something along those lines.

Simon.
Ars longa, vita brevis.

Offline b.lindsey

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Re: Schaublin corner
« Reply #7 on: May 18, 2019, 04:44:15 PM »
That turned out great Simon. Very nice looking RT!!

Bill

Offline Jo

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Re: Schaublin corner
« Reply #8 on: May 18, 2019, 04:56:22 PM »
Don't you love these tools that have been hand scraped - like under the that table top, it shows quality  8)

Jo
Enjoyment is more important than achievement.

Online sco

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Re: Schaublin corner
« Reply #9 on: May 18, 2019, 05:38:14 PM »
Thanks Bill, and Jo yes the scraping is nice.

Most impressive to me was the axial fit of the worm spindle in the holder - there's just a lock nut that clamps the worm to the spindle with no adjustment possible.  There is zero axial clearance that I can measure yet it turns smooth as silk - we would never try to design something that required that level of accuracy where I work as the scrap rate would be enormous!

Simon.
Ars longa, vita brevis.

Offline Art K

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Re: Schaublin corner
« Reply #10 on: May 19, 2019, 03:05:56 AM »
Simon,
The shop looks great, it's always good to have a soft surface to stand on makes it so much easier on the feet. Nice looking mill and a great job cleaning up & repainting the rotary table.
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Offline Roger B

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Re: Schaublin corner
« Reply #11 on: May 19, 2019, 06:35:00 AM »
Thanks Bill, and Jo yes the scraping is nice.

Most impressive to me was the axial fit of the worm spindle in the holder - there's just a lock nut that clamps the worm to the spindle with no adjustment possible.  There is zero axial clearance that I can measure yet it turns smooth as silk - we would never try to design something that required that level of accuracy where I work as the scrap rate would be enormous!

Simon.

A very nice tool  :praise2:  :ThumbsUp:  :ThumbsUp: I believe that Schaublin tolerances were such that components were interchangeable between machines and would always maintain the stated accuracy.
Best regards

Roger

Online sco

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Re: Schaublin corner
« Reply #12 on: May 19, 2019, 12:00:08 PM »
Thanks Roger and Art.  Would be nice to know how Schaublin achieved this level of accuracy - I think you must either grind everything to a very finely toleranced 'size' and then just know everything will fit together or except some level of hand finishing to bring parts into close tolerance.

At work when we want a close axial fit we always use a selective fit shim system - maybe that's the modern way.

Simon.
Ars longa, vita brevis.

Offline Roger B

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Re: Schaublin corner
« Reply #13 on: May 20, 2019, 01:55:01 PM »
This is the piece I had read on Schaublin manufacture:

http://www.lathes.co.uk/schaublin/page10.html

" This ease of conversion was achieved not by building complete machines in batches and then dismantling - but by concentrating on the accurate gauging of the sub-assemblies where limits of 0.001 mm were the norm."

Working normally to 1 micron, not bad  ::)
Best regards

Roger

Online sco

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Re: Schaublin corner
« Reply #14 on: May 26, 2019, 09:35:57 PM »
Started making a dial for the rotary table, never done any headstock dividing but rather than knurl the dial decided to use my Dremel style tool as a pseudo tool post grinder to cut axial grooves.  Used the 100 hole divisions and went round twice to cut the grooves, so 200 ops was pretty tedious but pleased with the result!

Simon.
Ars longa, vita brevis.

Online steamer

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Re: Schaublin corner
« Reply #15 on: May 26, 2019, 11:32:43 PM »
Saweeeeeet!.....


Dave
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Damned ijjit!

Online sco

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Re: Schaublin corner
« Reply #16 on: May 27, 2019, 11:18:01 AM »
Thanks Dave.  Next was to add the graduations, used a screwcutting insert turned on it's side and then after parting off the dial is finished.

Simon.
Ars longa, vita brevis.

Offline Don1966

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Re: Schaublin corner
« Reply #17 on: May 27, 2019, 10:24:14 PM »
Very nice work on that Dail Simon. Are you going to put numbers on it?


 :cheers:
Don

Offline b.lindsey

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Re: Schaublin corner
« Reply #18 on: May 28, 2019, 12:47:51 AM »
Beautiful and fitting for such a nice tool.

Bill

Online sco

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Re: Schaublin corner
« Reply #19 on: May 28, 2019, 09:27:58 PM »
Very nice work on that Dail Simon. Are you going to put numbers on it?


 :cheers:
Don

Thanks Don and Bill and yes got some numbers on it, asked the inspection department at work to Laser engrave it - much better result than I could hope to achieve with stamps.

I've also cheated and bought a balanced crank handle but need to modify it to mate with the drive dog,

Simon.
Ars longa, vita brevis.

Offline Don1966

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Re: Schaublin corner
« Reply #20 on: May 28, 2019, 10:46:59 PM »
Which ever works for you Simon very nice looking dial!


 :cheers:
Don

Offline b.lindsey

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Re: Schaublin corner
« Reply #21 on: May 28, 2019, 11:25:58 PM »
So nice to have friends in high places   ;), especially when they have laser engravers.

Bill

Online sco

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Re: Schaublin corner
« Reply #22 on: June 01, 2019, 11:38:27 AM »
Thanks Bill and Don. 

As I said I cheated and bought a handle but it needed a square recess cutting for the drive dog.  The dial span on it's boss way too freely so I drilled a radial hole for a small sprung loaded brass plunger to provide a bit of friction.  Last picture is it all assembled ready for some rotary work.

The mill came with a slotting head so going to have a play with that next and try and cut a square hole  :noidea:

Simon.
Ars longa, vita brevis.

Online sco

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Re: Schaublin corner
« Reply #23 on: June 02, 2019, 07:41:25 PM »
Setting up the slotting head took quite a while and had to start by grinding a simple chisel edge on a bit of tool steel.  Pictures show part way through the process, finished internal square and then after milling the outside faces to make a thin walled square tube.  Took a couple of videos of the process too.

<a href="http://www.youtube.com/watch?v=QrCtbjiY-Pg" target="_blank">http://www.youtube.com/watch?v=QrCtbjiY-Pg</a>

<a href="http://www.youtube.com/watch?v=AGHoABcz3-o" target="_blank">http://www.youtube.com/watch?v=AGHoABcz3-o</a>

Simon.
Ars longa, vita brevis.

Offline Florian Eberhard

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Re: Schaublin corner
« Reply #24 on: June 02, 2019, 08:48:50 PM »
Nice! A slotting Attachment is a pretty cool thing! I don't have one but probably am going to build one when I have finished all my current projects :) (which is going to take another two or three years I am afraid)

Florian

Offline Don1966

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Re: Schaublin corner
« Reply #25 on: June 02, 2019, 10:21:53 PM »
Awesome result Simon love that machine!


 :cheers:
Don