Opus 3 Cantus parallel tracking arm - Page 6 - diyAudio
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Old 21st April 2010, 11:10 AM   #51
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Join Date: Feb 2009
Location: Batley, West Yorkshire.
Default Message to Mr.Wheldon

I have just seen, on your profile, that you are a "BIG" Speaker fan?

Please take a look at my Pentowther Horns (Google Pentacone).

Also, go through to Rauna of Sweden (off my site if you like) and see the present day Designs that Bo Hansson is producing (in Concrete).

If you like, I can scan some photo's that I have, of Horn Systems in Bosse's World (In Sweden).

Kindest Regards, and thanks alot for this DIY Forum.

LUVP.
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Old 22nd April 2010, 04:23 PM   #52
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Location: Calgary on the Bow
Here is an interesting linear design by D. Mankovits US Patent number # 3006652 not the date.
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Old 22nd April 2010, 04:58 PM   #53
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Eh? what's tha doing Luv?

(This is how folks 'round 'ere talk!)
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Old 22nd April 2010, 06:41 PM   #54
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Default Cantus .....

just found these very nice pictures on line, thought some might like to see them.
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File Type: jpg 4147425471_b6c3088818.jpg (108.5 KB, 841 views)
File Type: jpg 4147428009_54f1077086.jpg (90.9 KB, 829 views)
File Type: jpg 4147429751_08092925a4.jpg (102.8 KB, 811 views)
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Old 23rd April 2010, 12:56 AM   #55
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Quote:
Originally Posted by moray james View Post
Here is an interesting linear design by D. Mankovitz US Patent number 3006652
I haven't read through all the text yet and my initial reaction is how does this David Mankovitz design deal with horizontal movement. Is it riding on two balls? The drawing is confusing.

Thanks for sharing.

.
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Old 23rd April 2010, 09:15 AM   #56
Nanook is offline Nanook  Canada
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Location: Chinook Country.Alberta
Default on some balls...

if you read the text, yes, the horizontal movement (lateral) is permitted by 2 balls riding in a track, and on an arm "carriage" , AFAI understand the patent. I skimmed it only, so no one needs to jump on the band wagon and suggest I'm wrong (I may very well have mis-understood what the text was referring to).

Murray, the longer I look at the Cantus, and the longer I look at the drawing (a rough sketchup) we did last year, the more I am convinced a similar arm could be done, but with exterior rollers rather than internal (I don't know how to cut a slot into a glass tube without destroying it, I have saved a tube for possible use though)
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Old 23rd April 2010, 10:58 AM   #57
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Location: Batley, West Yorkshire.
Nanook....Bosse supplied a Glass Tube for a past customer who had smashed his.

He charged around 50.00 ($77.00Cdn).

I am sure that he would be delighted in the thought that some was attempting to "Run" with his original inspiration.

He told me, the other day that he has sold 1,000 Cantus, World Wide, and this for him is quite enough for the effort put into the developement.

Let me know if you want one and I will do the necessary leg-work to get one posted to you.

LUVP.
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Old 23rd April 2010, 02:06 PM   #58
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Join Date: Jul 2004
Location: Sweden
Hi guys
I have'nt read trough the hole tread, but I saw you methioned the Opus3 Cantus
I am using The Cantus arm, on Bos Continous TT, and it works great
The glas tube MUST be absolutelly horisontal though
But ones it is set, it runns fantastic for years without further adjustments
Ones in a while I remove the "wagon" and pull a Cotton buddy throug the tube, to remove some dust.
But otherwise no maintenance, what so ever
A friend of mine ones oiled the bearings in his Cantus arm.
Never do that! The bearings must be keept dry to run easy.
Bo is very keen on good customer support, and he often offer seperate parts for the Diy'er. Just sent him a mail through the Rauna website
I ones broke my tube, and had a new one two days later.
Here's a pic of my Cantus (concrete TT), Canus arm and ZYX R100H Cart.
Click the image to open in full size.
Reg
Pix
Sweden
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Old 23rd April 2010, 02:46 PM   #59
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Location: Batley, West Yorkshire.
Hi Pix,

Great to hear from you....Welcome to "Our World".

Your command for English is very good....considering that you are Swedish.

Bosse can also do a good job with English, but struggles a little with Grammer when writing. So, he often sends the message to me for "Proof-Read".

I am quite happy to help you too, if there is any feeling of difficulty expressing your thoughts.

Just jot the words down on an Email, I will check the spelling and proper use of the language, and then pop it back to you for final examination, before posting to the "World".

Everyone will think you are incredible, and you will be able to learn a little more on how to say things, whilst thinking like a Yorkshire-Man!

With GOD's Love,

And Kindest Regards,

Pentacone Peter.
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Old 23rd April 2010, 03:10 PM   #60
tvi is offline tvi  Australia
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Don't think anyone has posted this pic yet?

Rgds
James
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