Rega Arm Drawing and Position Details Required

fasterbyelan · 11th December 2009, 10:22 AM

I'm in the process of designing a turntable that will use a Rega tone arm (RB250). Does anyone have a CAD drawing they could send me of such an arm - Auto Cad 2000 or .dxf format preferably.

Also I know the distance from the spindle to the centre of the arm 's mount is 222mm but what is the ideal angular position? Visual it appears to be 45 degrees clockwise from the top (ie rear) but is this correct?

Thanks for any help given,

Karl

sq225917 · 19th December 2009, 06:23 PM

Karl it makes no difference where the arm sits, 222mm is 222mm regardless, you just locate it according to how wide/square/rectangular you want to make the plinth.

you'll find a full set of measurements on vinyl engine, or at least the arm length, the counterweight stub is about 30mm long and exits from a boss roughly 12mm from the bearing centre.

merlin el mago · 19th December 2009, 07:36 PM

ArcProtractor for Rega RB-250, "WARNING" First of all, you must be absolutely sure to have the same mounting distance on your turntable than on the ArcProtractor.
MAXIMUM error on this dimension must be within +/-0.5mm. Otherwise, it is useless trying to align.

Rega vs Baerwald

Calvin · 20th December 2009, 09:10 AM

Hi,

I´m doing the same as Karl at the moment, but with an Rega300B.
So if anyony has a CAD drawing or at least a good pic I could import to CorelDraw I´d be happy to receive a mail.

Thanks
Calvin

merlin el mago · 20th December 2009, 10:06 AM

Quote:

Originally Posted by Calvin

Hi,

I´m doing the same as Karl at the moment, but with an Rega300B.
So if anyony has a CAD drawing or at least a good pic I could import to CorelDraw I´d be happy to receive a mail.

Thanks
Calvin

The Rega ArcProtractor is to use in all Rega Tonearms from RB-250 till RB-1000, please send me a pm with your e-mail will receive both ArcProtractors in zip format.

Merlin El Mago

EUVL · 20th December 2009, 10:42 AM

Would also appreciate a copy. Just sent PM.

Thx,
Patrick

merlin el mago · 20th December 2009, 11:03 AM

Usefull pictures to check the axis in tonearms:

With photo-shop programm can do this:

Merlin El Mago

merlin el mago · 20th December 2009, 05:57 PM

Quote:

Originally Posted by Calvin

Hi,

I´m doing the same as Karl at the moment, but with an Rega300B.
So if anyony has a CAD drawing or at least a good pic I could import to CorelDraw I´d be happy to receive a mail.

Thanks
Calvin

Link with all ArcProtractors & setup: http://www.ls35a.com/

Merlin El Mago

merlin el mago · 20th December 2009, 06:00 PM

Quote:

Originally Posted by EUVL

Would also appreciate a copy. Just sent PM.

Thx,
Patrick

Sent.

Enjoy,
Merlin El Mago

planet10 · 20th December 2009, 07:34 PM

Quote:

Originally Posted by merlin el mago

Link with all ArcProtractors & setup: The Unofficial LS3/5a Support Site

Merlin,

Lots of LS3/5A info there, but i'm having trouble finding a link ti the protractors?

(does remind me i have to continue pursuing a crossover for a friends bastardized LS3/5A)

dave

11th December 2009, 10:22 AM	#1
fasterbyelan diyAudio Member Join Date: Oct 2009 Location: Towcester	Rega Arm Drawing and Position Details Required I'm in the process of designing a turntable that will use a Rega tone arm (RB250). Does anyone have a CAD drawing they could send me of such an arm - Auto Cad 2000 or .dxf format preferably. Also I know the distance from the spindle to the centre of the arm 's mount is 222mm but what is the ideal angular position? Visual it appears to be 45 degrees clockwise from the top (ie rear) but is this correct? Thanks for any help given, Karl

19th December 2009, 06:23 PM	#2
sq225917 diyAudio Member Join Date: Jun 2004 Location: sheffield	Karl it makes no difference where the arm sits, 222mm is 222mm regardless, you just locate it according to how wide/square/rectangular you want to make the plinth. you'll find a full set of measurements on vinyl engine, or at least the arm length, the counterweight stub is about 30mm long and exits from a boss roughly 12mm from the bearing centre. __________________ hoping to pick up some things.

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19th December 2009, 07:36 PM	#3
merlin el mago diyAudio Member Join Date: Sep 2009 Location: Blanes - Costa Brava	ArcProtractor for Rega RB-250, "WARNING" First of all, you must be absolutely sure to have the same mounting distance on your turntable than on the ArcProtractor. MAXIMUM error on this dimension must be within +/-0.5mm. Otherwise, it is useless trying to align. Rega vs Baerwald

20th December 2009, 09:10 AM	#4
Calvin diyAudio Member Join Date: Nov 2004 Location: close to Basel	Hi, I´m doing the same as Karl at the moment, but with an Rega300B. So if anyony has a CAD drawing or at least a good pic I could import to CorelDraw I´d be happy to receive a mail. Thanks Calvin

20th December 2009, 10:42 AM	#6
EUVL diyAudio Member Join Date: Oct 2003	Would also appreciate a copy. Just sent PM. Thx, Patrick

20th December 2009, 11:03 AM	#7
merlin el mago diyAudio Member Join Date: Sep 2009 Location: Blanes - Costa Brava	Usefull pictures to check the axis in tonearms: With photo-shop programm can do this: Merlin El Mago

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