Korg Sigma -- Broken Joystick Troubles...

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Korg Sigma -- Broken Joystick Troubles...

Postby petervh » Wed May 30, 2007 4:30 pm

Hey everyone,

I picked up a cool old Korg Sigma the other day for $25 (a craigslist
find). Everything seems to work great, however, both of the joysticks
have snapped off. Does anyone have any clue how a simple repair could
be done to fix this? The threads have almost entirely broken off as well.

Thanks!

- Peter
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Postby tom Cadillac » Wed May 30, 2007 6:30 pm

When I bought my sigma, one of the joysticks was broken and I put a top from a children's felt pen on what was left. This works fine for mine, but it depends how much of a stump is left. As its a purely physical problem you should be able to come up with some creative solution. Maybe using a substance that will mould to the shape of the stump and then harden and be glued on - at least enough for a pen top to be fitted. Think dentistry and tooth crowns!!! And don't miss the ring mod knob - its the same size as all the other small ones. Only the sound is far bigger!
Best of luck.
(two joysticks is double happiness)
"On the following day , the sorcery undespairingly continued: I changed my series, chose other sequences, cut other lengths, spliced different progressions, and hoped afresh for a miracle in sound." (Stockhausen)
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Postby Denms20 » Thu May 31, 2007 5:07 am

just fixed the stick on my lambda, and if I remember right they were similar. WHat I did was filed what was left of the stump down, then drilled a hole in the metal post. I tried tapping it but it's a white metal type material, so I'm going to get some threaded rod and glue it in with some couplers. I'll post a pic when it's done.
Hammond CV, M3, s6, Korg MS-20, SP-100, CX-3, Hohner D-6, Roland JX8P, Sound Canvas, Yamaha Tx7, Casio CZ101, Rhodes, Crumar T1
http://www.organdenstudio.com
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Postby Tidda » Thu May 31, 2007 5:47 pm

I'll be looking forward to that pic.
I have a Delta with a broken joystick.
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Postby petervh » Fri Jun 01, 2007 7:46 am

Thanks for the tips! I am very interested in seeing those pics.

p.
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Postby Denms20 » Sat Jun 02, 2007 5:51 am

Well, I modified things a bit, and actually got the hole threaded, with a bigger threaded rod. I used 8/32nd rod, and some things called "Expandit" fasteners. They are a masonary fastener that you use like the old banana plugs, but these are a bit better for a joystick application. You should be able to find them at a Lowes or Home Depot type store.
The toughest part of the job was drilling the hole, actually. Once that's in, the rest was kind of easy.
This hting is far from beautiful, but I just traded the Lambda for an RS-09, and the guy that bought it seemed content with it.
Here's the pics:
http://i176.photobucket.com/albums/w180 ... bda112.jpg
http://i176.photobucket.com/albums/w180 ... stick1.jpg
http://i176.photobucket.com/albums/w180 ... stick2.jpg
http://i176.photobucket.com/albums/w180 ... stick3.jpg
http://i176.photobucket.com/albums/w180 ... stick4.jpg
Hammond CV, M3, s6, Korg MS-20, SP-100, CX-3, Hohner D-6, Roland JX8P, Sound Canvas, Yamaha Tx7, Casio CZ101, Rhodes, Crumar T1
http://www.organdenstudio.com
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Postby petervh » Sat Jun 02, 2007 4:34 pm

That looks great! Do you have any tips on the drilling side of it? I don't have a drill press available.

Thanks,

p.
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Postby Denms20 » Sat Jun 02, 2007 7:30 pm

Yea, that was the tough part. It's important to file the top of the post down flat, than I used a spade bit that had a hole in it as kind of a jig and held it flat against the post and drilled through the hole already through it. I can post a pic of the spade bit if that'll help?
Hammond CV, M3, s6, Korg MS-20, SP-100, CX-3, Hohner D-6, Roland JX8P, Sound Canvas, Yamaha Tx7, Casio CZ101, Rhodes, Crumar T1
http://www.organdenstudio.com
Denms20
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