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Köping S7C Metal Lathe

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Tumphu (trådstartaren)

#1 » 14:55:56, 03-07-2018
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Hi and greetings from Finland.

Does anyone have in use/friends use, in museum or just some info of Köping S7C Metal lathe?

Im about to buy one, that havent been used in couple decade. Some parts has been removed from it so it need some rebuilding but its okay, as it has been sitting so long it will need some care anyway. Im prettu sure that there are parts broken and missing too, id be more than happy from any info.
Some basic electronics and bearings are easy ones, but like gearing ratio for different threading (if there is gears missing) and for cross-feed leadscrew & gearing if those are missing too. Bronze bushing for power feed are probably really worn, and leadscrews might have corrosion/rust on it so those need restoration or new ones. Pitch of those would be really usefull to know too.

Pictures are always good, those shows how things should be aligned etc.

Lets start talking, share your info! :D

--
Best regards,
Tuomo, Finland.
Tumphu
Fler än 10 inlägg
 
Blev medlem: 16:25:41, 10-05-2017
Ort: Koski TL, Finland
Suomi Finland (finska)
Maskintyp: Traktor
Maskin: Ford 5610mk2 4WD
Ford 3000
Köpings S7C, year 1928, No: 25



Mattias Petterson

#2 » 17:11:53, 03-07-2018
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Bilder?
Det finns två sorters människor:
De som gillar hårdrock... Och de som inte lärt sig gilla hårdrock ännu...
Mattias Petterson
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Blev medlem: 22:14:17, 30-06-2009
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Sverige
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Blomqvist bs 600
Fräs okänd
Reime verktygsslip
Och andra bra och ha prylar

Tumphu (trådstartaren)

#3 » 19:09:06, 03-07-2018
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Here are some pics that seller has provided.

I dont have this lathe yet, so i cant take more pics.
Bild
Originalets URL: http://i5.aijaa.com/t/00359/14588920.t.jpg Bild
Originalets URL: http://i4.aijaa.com/t/00585/14588921.t.jpg Bild
Originalets URL: http://i7.aijaa.com/t/00556/14588922.t.jpg Bild
Originalets URL: http://i9.aijaa.com/t/00420/14588923.t.jpg
Bild
Originalets URL: http://i4.aijaa.com/t/00967/14588924.t.jpg Bild
Originalets URL: http://i6.aijaa.com/t/00089/14588925.t.jpg


Here is some pics from lathe that is in better condition, best ones i've found so far
http://www.rogmaracing.com/koping_lathe ... index.html
Tumphu
Fler än 10 inlägg
 
Blev medlem: 16:25:41, 10-05-2017
Ort: Koski TL, Finland
Suomi Finland (finska)
Maskintyp: Traktor
Maskin: Ford 5610mk2 4WD
Ford 3000
Köpings S7C, year 1928, No: 25

joka69

#4 » 22:48:44, 15-07-2018
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Hello, If you buy the lathe, i recommend you to visit storebro.eu .The company Can give you spareparts and documenation regarding your Köping lathe.

/ Johan
joka69
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Tumphu (trådstartaren)

#5 » 18:23:32, 27-07-2018
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I bought this lathe and its on my yard at the moment. I've been cleaning it and seems that only couple parts are missing.

Some of gears are missing teeths, but those can be repaired by welding & tooling.

I've contacted storebro.eu, the guy (Hans) is on vacation at the moment. Lets hope that he can help me with parts after he comes back from freshing vacation.
Tumphu
Fler än 10 inlägg
 
Blev medlem: 16:25:41, 10-05-2017
Ort: Koski TL, Finland
Suomi Finland (finska)
Maskintyp: Traktor
Maskin: Ford 5610mk2 4WD
Ford 3000
Köpings S7C, year 1928, No: 25

Tumphu (trådstartaren)

#6 » 17:02:05, 07-08-2018
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I've made some cleaning, measuring, 3D printing new parts that has been missing.

These parts are temporary only as im seeking spare parts all the time. Maybe i need to machine those by myself, who knows... But here are some pics:

Crossfeed trapezoidal nut:
Bild

Power feed control axle gearing:
Bild


Next i start to planning threading engage mechanism. All other parts are there, but that small part is missing that engages long trapezoidal axle.

Havent seen any pics of it, so desing is coming out from my own imagination. After one is done with 3D printer, i have good pictures to do it from metall too.

2 personer gillar det här inlägget.
Tumphu
Fler än 10 inlägg
 
Blev medlem: 16:25:41, 10-05-2017
Ort: Koski TL, Finland
Suomi Finland (finska)
Maskintyp: Traktor
Maskin: Ford 5610mk2 4WD
Ford 3000
Köpings S7C, year 1928, No: 25

Ugluk

#7 » 08:15:56, 28-10-2018
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I recently aquired an identical lathe, no 35.
It needs a fair bit of work, but I might be able to help out with pics of missing parts.

1 person gillar det här inlägget.
Användarvisningsbild
Ugluk
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jörgen.ottosson

#8 » 09:12:30, 28-10-2018
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I do not have any of the information you ask for, but I glad that old lathes are cared for, it can probably become a good working lathe (with some work invested in it...). :thumme:
Deus ex machina
jörgen.ottosson
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Blev medlem: 22:57:47, 04-01-2009
Sverige
Maskintyp: Grävmaskin (larvburen)
Maskin: sandvik sl-350
liebherr a500s
scania lbs 140
KL 121B

Tumphu (trådstartaren)

#9 » 21:38:47, 18-11-2018
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News from my project...

I've ordered and received new trapezoidal rod and steel nut for crossfeed. Original was 22x5, but new one is 20x4. So feed is a bit slower, but for crossfeed it wont matter.

Im plannig to cut original part, drill a hole and join this new rod to it. Steel nut needs some tooling, its round piece so first i need to take a bit off from its diameter, then need to weld
more steel to it to make it correct shape. Then i will burn it with oil for better rust resist, and lots of grease offcourse.
If it doesnt last long, i'll do the same with brass nut.

Some gears are missing teeths (outer ones, the ones that are changed for different power feed speed). I've made 120, 100 and 60 teeth gears with my 3D printer also and those seems to work fine.

Lathe is at working condition at the moment, but gearbox has wrong oil in it. It leaks from brass-slide type "bearings", so i need thicker oil.

Still needs a lot of cleaning tho!

I've ordered some tools, live center, drill center etc and noticed that tailstock is not centered. There is an adjust nut for horizontal, but not for vertical. So i need to find correct thickness of steel
and raise it a bit. After that im able to do some better testing with it.

Sadly havent got much time, and to be honest i dont want to clean it too good this year as it will spent this winter in cold shelter. Next summer planning to repair one part of my garage,
and set up heatings so the room where lathe is, would have like 10c minimum temp all the time.
Tumphu
Fler än 10 inlägg
 
Blev medlem: 16:25:41, 10-05-2017
Ort: Koski TL, Finland
Suomi Finland (finska)
Maskintyp: Traktor
Maskin: Ford 5610mk2 4WD
Ford 3000
Köpings S7C, year 1928, No: 25

jörgen.ottosson

#10 » 22:30:44, 18-11-2018
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To raise the tailstock to the correct hight you better use bras shim-stock, its not god to run steel directly on to the bed.
Deus ex machina
jörgen.ottosson
Fler än 500 inlägg
 
Blev medlem: 22:57:47, 04-01-2009
Sverige
Maskintyp: Grävmaskin (larvburen)
Maskin: sandvik sl-350
liebherr a500s
scania lbs 140
KL 121B

pextreme13

#11 » 07:37:30, 19-11-2018
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If i remember correctly on my sc7 the tailstock were shimmed with brass schims but not straight on the bed, the tail stock were split horizontaly


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pextreme13
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Tumphu (trådstartaren)

#12 » 20:41:50, 24-11-2018
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Thanks for replies, I need to tear that tailstock to parts and see if it can easily been shimmed.

Then need to go find some store that is selling brass shim plates
Tumphu
Fler än 10 inlägg
 
Blev medlem: 16:25:41, 10-05-2017
Ort: Koski TL, Finland
Suomi Finland (finska)
Maskintyp: Traktor
Maskin: Ford 5610mk2 4WD
Ford 3000
Köpings S7C, year 1928, No: 25

jörgen.ottosson

#13 » 21:51:30, 24-11-2018
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there is probably some stores i Finland that sells it to:

https://shop.otdtools.se/category/massing

Or you can make a visit to a machine shop, they usually have some.
Deus ex machina
jörgen.ottosson
Fler än 500 inlägg
 
Blev medlem: 22:57:47, 04-01-2009
Sverige
Maskintyp: Grävmaskin (larvburen)
Maskin: sandvik sl-350
liebherr a500s
scania lbs 140
KL 121B

Tumphu (trådstartaren)

#14 » 20:28:12, 26-11-2018
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I actually ordered different thickness plates from ebay, didnt cost that much so i took several of different plates.

I assume I'll get it close enough with those.
Tumphu
Fler än 10 inlägg
 
Blev medlem: 16:25:41, 10-05-2017
Ort: Koski TL, Finland
Suomi Finland (finska)
Maskintyp: Traktor
Maskin: Ford 5610mk2 4WD
Ford 3000
Köpings S7C, year 1928, No: 25

Tumphu (trådstartaren)

#15 » 10:45:31, 16-12-2018
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I've received different thickess of brass plates now, now i just need time to measure tailstock error and calibrate it.

Meanwhile I've done some missing gearings:

https://photos.app.goo.gl/DVm5VoST3SjEqedJ8
https://photos.app.goo.gl/iyyp5CvsY1desWcS6

There is missing several other gears too, well... All the gears are there but some teeth are missing.

I know there are MOD1.5 gears cheap in ebay, that just need to be machined to fix my lathe, but wanted to try something new.
I printed gears with 3D printer. With small test these seems to work fine, material is PLA.

Now i have ABS and PETG too, those are a bit more elastic and can handle more torque than PLA (if PLA breaks).
Tumphu
Fler än 10 inlägg
 
Blev medlem: 16:25:41, 10-05-2017
Ort: Koski TL, Finland
Suomi Finland (finska)
Maskintyp: Traktor
Maskin: Ford 5610mk2 4WD
Ford 3000
Köpings S7C, year 1928, No: 25


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