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Joined 2009
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I still didn’t
try it, just too many other things going on
thx for reminding me about it
Hi
You can straighten those capstan wheels out on a lathe.
Bring them to a metalworks place ,if you can find one ,these days. Or get a small one yourself.
Cheers
I did think about that but the problem with zinc pest is that it will just re-appear, a bit like rust.
The impurities in the zinc alloy comes from within the mass and bubbles/expands out to the surface.
However, I'm in touch with several machine shops regarding a project to have some cassette head gauges made so maybe it could be an interesting experiment to get them balanced and observe how long it take for the phenomenon to re-appear.... it would be good data, particularly for Nakamichi deck owners as the flywheels are all made of the same zinc alloy I think.
Drug my old Nakamichi CR1A out of the garage which is a super hostile environment. After 16 years. Wiped off the grime. Plays great.
They will be an exact replica of the IT-M300 and with possibly even tighter tolerances for flatness, perpendicularity, parallelism and dimensional stability.
RFQ's have been sent out to various machine shops.
A BX-125 packed down somewhere in a cardboard box have pretty tired rubber, any suggestion where to buy a replacement kit, or can I go with just any kit from ebay like this one linked below...?
Full Kit Belt (2pcs) + Roller + Idler for cassette deck Nakamichi BX-125 - ebay.com
Full Kit Belt (2pcs) + Roller + Idler for cassette deck Nakamichi BX-125 - ebay.com
There used to be a site for machining and plastic jobs, called e-machines or similar, you can find sellers and buyers for what you have in mind.
It was basically a meeting place for those dealing in metal and plastic parts.
Somebody I know made lots of money by supplying small quantities of plastic parts to buyers in the USA, he used to get orders from people visiting that site, now of course 3-D printing has changed the way things work.
He used to make the molds, and injection mold 50 - 100 impressions, in this line 100k impressions are a normal run...medical syringe molds making 14,400 per hour are considered slow!
Or you could have them made by 3-D printing, some people do have metal sputtering or similar machines, cost may be high.
Even cast iron or old aluminum piston crowns can be used to make flywheels, more durable than zinc, which I suspect was pressure die cast, and the material may be in fact similar to what was used in carburetors.
Please make sure the new ones are within 5% of the original weight, or you may have speed regulation issues.
It was basically a meeting place for those dealing in metal and plastic parts.
Somebody I know made lots of money by supplying small quantities of plastic parts to buyers in the USA, he used to get orders from people visiting that site, now of course 3-D printing has changed the way things work.
He used to make the molds, and injection mold 50 - 100 impressions, in this line 100k impressions are a normal run...medical syringe molds making 14,400 per hour are considered slow!
Or you could have them made by 3-D printing, some people do have metal sputtering or similar machines, cost may be high.
Even cast iron or old aluminum piston crowns can be used to make flywheels, more durable than zinc, which I suspect was pressure die cast, and the material may be in fact similar to what was used in carburetors.
Please make sure the new ones are within 5% of the original weight, or you may have speed regulation issues.
As long as you have the old part ,it can be copied and remade but not all can be. As they can possibly be too complex. Multiple parts to it etc.
Have you determined conclusively that it's actually 'pretty tired' and needs replacing? If not, then if the capstan belt is still intact then just measure w&f using WFGUI.
Soak the belt and pinch roller in naptha to recondition and clean. measure again.
If the capstan belt is gloop then you won't get in-spec w&f with any other belt and it's a lottery as to which belts are the best at any given time, even from the same belt supplier.
I generally use webspareparts or audio andijk.
Pretty tired to such a degree it wont spin the cassette and that was already years ago, so the w&f measurement have to wait.
I found WebSpareParts, unfortunately only the flat belt for my BX.
https://webspareparts.com/collectio...an-belt-for-cassette-deck-nakamichi-bx-125e-1
Ok while typing here I tried to find Andijk and I think you meant this web page:
https://www.electro-andijk.nl/
and for my deck it would be this kit, just short of the roller, the belts are supposed to be "original", I have no idea but wondering do someone still manufacturing all the original Nakamichi rubber.
https://www.electro-andijk.nl/categ...hi-bx-125-bx125-snarenset-cassettedeck-detail
And ANT's webpage for the WFGUI SW
http://www.ant-audio.co.uk/index.php?cat=post&qry=library
I have to put up a calibration tape on the shopping list too.
I found WebSpareParts, unfortunately only the flat belt for my BX.
https://webspareparts.com/collectio...an-belt-for-cassette-deck-nakamichi-bx-125e-1
Ok while typing here I tried to find Andijk and I think you meant this web page:
https://www.electro-andijk.nl/
and for my deck it would be this kit, just short of the roller, the belts are supposed to be "original", I have no idea but wondering do someone still manufacturing all the original Nakamichi rubber.
https://www.electro-andijk.nl/categ...hi-bx-125-bx125-snarenset-cassettedeck-detail
And ANT's webpage for the WFGUI SW
http://www.ant-audio.co.uk/index.php?cat=post&qry=library
I have to put up a calibration tape on the shopping list too.
@ChrisCables thanks for reminding this slightly demented android, just put in an order on ebay, the fun starts not until end of August.......... 8/
For those that still do recording, what cassettes are you guys using these days and where do you get them?
From the old Blowtorch part II mega thread Chris aka @anatech chimed in on tapes mentioning most Japanese decks were set up for TDK SA as I mentioned 2 posts above using TDK SA-X which I found empirically to be the best performing on Nakamichi.
https://www.diyaudio.com/community/...orch-preamplifier-part-ii.146693/post-5208984
https://www.diyaudio.com/community/...orch-preamplifier-part-ii.146693/post-5208984
In the late '90 i bought a clearance of Sony Chrome tapes - budget type but much better than what available previously-
Since i've always hated Dolby (a remedy worse than the problem, imo), on my Teac C2 those tapes used with metal EQ + CrO2 Bias position give me the right feel on highs.
On the A 430 is just a matter of altering a bit the auto bias procedure.
c
Don't ask me why, i don't know
Since i've always hated Dolby (a remedy worse than the problem, imo), on my Teac C2 those tapes used with metal EQ + CrO2 Bias position give me the right feel on highs.
On the A 430 is just a matter of altering a bit the auto bias procedure.
c
Don't ask me why, i don't know
I did warranty for many mainstream cassette decks. TDK-SA was the factory cal tape. Nakamichi reference tape was centre cut from SA or SAX sheets.
Any real CrO2 tape is "lapping tape in a box". Metal is also horrible for the heads.
Any real CrO2 tape is "lapping tape in a box". Metal is also horrible for the heads.