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A Lorch Micro-Mill that never was ...


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90 replies to this topic

#81
Dupree Allen

Dupree Allen
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A very exciting journey through the eyes of an accomplished machinist and tool maker. Although most of us will never achieve this extreme level of tool making, it is an amazing example of work that can't be ignored. What a group of artisans who add new meaning to "We can build nearly anything from very little."


Edited by Dupree Allen, 29 December 2016 - 09:15 PM.

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Dupree

 

"A slow steady hand conquers a fast shaky mind" - me

 

 

HMS Triton 1:32 Cross Section


#82
wefalck

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Thanks for the kind words. Well, actually most of the really serious machining (namely the guides for the slides) was done decades ago by the Lorch-guys in Frankfurt/Germany. That really cannot be done with 'nothing', but requires a bigger and sturdier milling machine than I have. The quality of their workmanship is difficult to find these days. I also wished I could work with cast parts, rather than having to fabricate them.

 

About the scale: sorry, I am so familiar with the size of these machines, that did not think of adding a scale. The overall height of it is 35 cm or 14". for those across the water.

 

**********************

 

One of the most important aspects of the machine is the flexiblity in holding even tiny work-pieces. The dividing head offers a wide variety of work-holding options using the spindle-tools from the 6 mm-lathe, such as 3- and 6-jaw-scroll-chucks, independent 4-jaw-chucks, ring- and step-chucks, face-plates, as well as the whole range of collets from 0.3 mm to 14 mm diameter.

 

MF-137.jpg

3-jaw chuck

 

MF-138.jpg

Step-chuck

 

MF-139.jpg

Ring-chuck

 

MF-140.jpg

Independent 4-jaw-chuck

 

MF-141.jpg

A very old face-plate (I have newer model too, but this is not refurbished yet)

 

The dividing head can be positioned at any angle between vertical and horizontal. Direct dividing is provided for by a drum with three rows of 8, 10, and 12 indents respectively. This allows the milling of prisms or pyramids with 2, 3, 4, 5, 6, 8, 10, or 12 sides. A worm-wheel of 40 teeth that is driven by worm on the axis of which is mounted a dividing plate with 90 teeth provides for indirect division of up to 3600. While such divisions are unlikely to occur in practice, the fine angular movement is useful for shape-milling against a schedule table. When the indent is disengaged the worm-drive can be used for round-milling.

 

MF-143.jpg

Dividing head in horizontal position

 

MF-144.jpg

Dividing head set at an angle

 

TK-17.JPG

Worm and dividing plate for indirect dividing

 

Collets for work-holding are particularly useful, as a wide variety of small parts can actually by milled from round material of various diameters and then sawn-off from the stem held in the collet. The collets, a holder for standard 6 mm end-mills, arbors for slitting saws, as well as a small boring-head are stored in a fitted antique box.

 

MF-142.jpg

Antique collet box adapted to the use with the micro-mill

 

To be continued ...


Edited by wefalck, 29 December 2016 - 11:19 PM.

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wefalck

 

panta rhei - Everything is in flux

 

 

M-et-M-72.jpg  Banner-AKHS-72.jpg  Banner-AAMM-72.jpg  ImagoOrbis-72.jpg

#83
BANYAN

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Aghh! Now you have done it - I am very jealous of that fabulous set-up :)  Some great flexibility of function you have created in that machine Wefalck.  Any left-over bits I could you use with my Lanco?  (Sorry being a bit cheeky there).  Seriuosly, a really useful set up for small part machining.

 

cheers

 

Pat


Edited by BANYAN, 29 December 2016 - 10:56 PM.

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If at first you do not suceed, try, and then try again!
Current build: HMCSS Victoria (Scratch) - underway

Next builds:    HMAS Vampire (3D printed resin 1:350)

Built:                Battle Station (Scratch)

                         HM Bark Endeavour 1768 (1:64)


#84
wefalck

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Tonight I did some test-runs and made some short videos, showing the machine in action:

 

http://www.maritima-...urces/MF-V1.mov

 

http://www.maritima-...urces/MF-V2.mov

 

http://www.maritima-...urces/MF-V3.mov

 

http://www.maritima-...urces/MF-V4.mov

 

:champagne:


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wefalck

 

panta rhei - Everything is in flux

 

 

M-et-M-72.jpg  Banner-AKHS-72.jpg  Banner-AAMM-72.jpg  ImagoOrbis-72.jpg

#85
cog

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Wefalk,

 

The only result I get from your videos are errors both on Quicktime and on VLC


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Carl

Builds
Kit Wood
Dolphyn [Corel] 1:68, Higaki Kaisen [Woody Joe] 1:72
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Finished builds

Scratch: Sea Witch 1:109


#86
wefalck

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OK, it appears that some people had problems with displaying the movies on non-Apple devices. Here another try:

 

http://www.maritima-...omill/MF-V1.mp4

 

http://www.maritima-...omill/MF-V2.mp4

 

http://www.maritima-...omill/MF-V3.mp4

 

http://www.maritima-...omill/MF-V4.mp4

 

http://www.maritima-...omill/MF-V5.mp4

 

http://www.maritima-...omill/MF-V6.mp4


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wefalck

 

panta rhei - Everything is in flux

 

 

M-et-M-72.jpg  Banner-AKHS-72.jpg  Banner-AAMM-72.jpg  ImagoOrbis-72.jpg

#87
donrobinson

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Very nice machine



#88
cog

cog
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Thank you for changing the video type Wefalck


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Carl

Builds
Kit Wood
Dolphyn [Corel] 1:68, Higaki Kaisen [Woody Joe] 1:72
Kit Plastic

IJN Musashi [Tamiya] 1:350

 

Finished builds

Scratch: Sea Witch 1:109


#89
wefalck

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Hope everyone arrived well in the New Year !

 

*************

 

Here a few additional pictures of the machine with the attachment for indirect dividing mounted. It also shows the over-arm (or rather under-arm) to support longer and slender parts. Both were already fabricated some 15 years ago for the use on my lathe.

The first picture also show a micrometer depth-stop for the vertical slide, which was made some 20 years for use on the small 6 mm-watchmakers lathe.

 

MF-145.jpg

 

MF-146.jpg

 

MF-147.jpg

 

MF-148.jpg

 

MF-149.jpg

 

MF-150.jpg


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wefalck

 

panta rhei - Everything is in flux

 

 

M-et-M-72.jpg  Banner-AKHS-72.jpg  Banner-AAMM-72.jpg  ImagoOrbis-72.jpg

#90
mtaylor

mtaylor

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Pure engineering artistry, Wefalck.  


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Mark

"The shipwright is slow, but the wood is patient." - me


Current Build:

Licorne - 1755 from Hahn Plans (Scratch) Version 2.0

Past Builds:
Triton Cross-Section
USS Constellaton (kit bashed to 1854 Sloop of War (Gallery) Build Log
Wasa (Gallery)


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#91
michael mott

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Lovely Machine, was good to see it in action also I now have a better sense of the size.

 

Michael


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Current builds  Bristol Pilot Cutter 1:8

 

                                Skipjack 19 foot Launch 1:8

 

                               Herreshoff Buzzards Bay 14 1:8

 

Other projects  Pilot Cutter 1:500

 

                         Maria, Sloop 1:2

 

Restoration      A Bassett Lowke steamship Albertic 1:100

 

Anything you can imagine is possible, when you put your mind to it.





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