Who is interested in a groupbuy of Mark Kelly's DC controller PCB and related parts - Page 19

superhkm · 11th May 2006, 10:36 PM

Quote:

Originally posted by JRags

I vote one size fits all. We then can see how many members will sign up for the pulley. This was essentially the approach that was taken on the motor.

I suggest we go with a bronze, crowned pulley with a diameter Vinyl-Addict and Mark agree on. The quarter mounting plate could be optional but the pulley design would accommodate it. Then see how many members sign-up. If the number is sufficient to make it worthwhile for Vinyl-Addict, or some other machinist someone knows, then its a go. If not then we are on our own.

My two cents.

Second seconding.

superhkm · 11th May 2006, 10:55 PM

To those of you who want to order motors, you have to send me an email, or I'll have more work on my hands sorting you out..

Since Mark is already dividing components into bags , I guess it's time to set a last date for Motor orders.

I won't order any motors that are not paid for so, I'm giving you all until midnigth gmt , may 16 . to make and pay your orders.

Everyone that have made orders should now have recieved a payment request. Email me if not.

( a note on the side; 1 US $ now worth 5% less compared to the norwegian "krone" than it was when I calculated the $90 price !
If I withdraw the cash from my paypal account after the motors are sent , I stand to lose $100 , at the least. The solution is of course to keep it all in the account and spend it on mailorder gear, kits and components. I'll have no problem doing that ! )

Vinyl-Addict · 11th May 2006, 11:10 PM

Quote:

Originally posted by JRags

I vote one size fits all. We then can see how many members will sign up for the pulley. This was essentially the approach that was taken on the motor.

I suggest we go with a bronze, crowned pulley with a diameter Vinyl-Addict and Mark agree on. The quarter mounting plate could be optional but the pulley design would accommodate it. Then see how many members sign-up. If the number is sufficient to make it worthwhile for Vinyl-Addict, or some other machinist someone knows, then its a go. If not then we are on our own.

My two cents.

I guess I forgot to mention choice of material. I would be willing to offer brass or aluminum, sorry, no bronze.

JRags · 11th May 2006, 11:25 PM

Quote:

I guess I forgot to mention choice of material. I would be willing to offer brass or aluminum, sorry, no bronze.

My mistake, I meant to type brass. Looking back on previous posts I see I have said bronze on more than one occasion.

Thanks for highlighting what is possible. From my experience and from what I have read, brass is the metal that reduces resonance transfer through the platter and tonearm. Aluminum tends to ring.

Bas Horneman · 11th May 2006, 11:40 PM

Quote:

$90 price !

Indeed the dollar has gone down quite a bit against the euro as well. How much extra would you like me to send to you?

Mark Kelly · 12th May 2006, 01:08 AM

Vinyl Addict made me an aluminium "pulley" with grub screw attachment which I am using on the prototype motor (an 110191).

I can detect no runout at all, nor can I detect any change in the (incredibly low level) motor noise when the pulley is attached or removed. I could detect a change in the motor noise when I relubricated the bearings with synthetic oil (Mobil 1).

I said "pulley" because this is not being used in a belt drive system, it's driving a Garrard 301. For those interested, with the heavy Garrard platter and the stiff grease bearing the motor pulls up to speed in less than two seconds. It has more power, more torque and a better speed / torque curve than the original Garrard motor, despite being about one fiftieth the size.

superhkm · 12th May 2006, 05:23 AM

Quote:

Originally posted by Bas Horneman

Indeed the dollar has gone down quite a bit against the euro as well. How much extra would you like me to send to you?

I now realize that the "note on the side" in my last post may have looked like request for more cash. This was not my intention.
I'll finish the order, calculate my losses, and we will take it from there.

Bas Horneman · 12th May 2006, 06:46 AM

Hallo All,

Just a little note. If you are still interested in a pcb but have not given your name. Just post in this thread and Mark Kelly will get back to you.

"anyone who wants to be on the wait list for PCBs or kits should post to the thread and I will contact you through asylum email asking for your email / paypal address"

http://www.diyaudio.com/forums/showt...498#post911498

hov · 12th May 2006, 07:58 AM

mark kelly controller
Mark; Do you have 1-PCB and parts to populate still available? Thanks, Trygve

kevinchampion · 12th May 2006, 08:12 AM

I agree, one size fits all should be the way to go. In terms of specification i would be happy with the consensus.

11th May 2006, 10:55 PM	#182
superhkm diyAudio Member Join Date: May 2005 Location: oslo	motor orders To those of you who want to order motors, you have to send me an email, or I'll have more work on my hands sorting you out.. Since Mark is already dividing components into bags , I guess it's time to set a last date for Motor orders. I won't order any motors that are not paid for so, I'm giving you all until midnigth gmt , may 16 . to make and pay your orders. Everyone that have made orders should now have recieved a payment request. Email me if not. ( a note on the side; 1 US $ now worth 5% less compared to the norwegian "krone" than it was when I calculated the $90 price ! If I withdraw the cash from my paypal account after the motors are sent , I stand to lose $100 , at the least. The solution is of course to keep it all in the account and spend it on mailorder gear, kits and components. I'll have no problem doing that ! )

12th May 2006, 06:46 AM	#188
Bas Horneman diyAudio Moderator Emeritus Join Date: Apr 2002 Location: The Netherlands Blog Entries: 18	Hallo All, Just a little note. If you are still interested in a pcb but have not given your name. Just post in this thread and Mark Kelly will get back to you. "anyone who wants to be on the wait list for PCBs or kits should post to the thread and I will contact you through asylum email asking for your email / paypal address" http://www.diyaudio.com/forums/showt...498#post911498 __________________ Boatanchor amps forum My "adventures" in audio

12th May 2006, 08:12 AM	#190
kevinchampion diyAudio Member Join Date: Sep 2005	pulley group buy I agree, one size fits all should be the way to go. In terms of specification i would be happy with the consensus.

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12th May 2006, 01:08 AM	#186
Mark Kelly diyAudio Member Join Date: Feb 2006 Location: Geelong	Vinyl Addict made me an aluminium "pulley" with grub screw attachment which I am using on the prototype motor (an 110191). I can detect no runout at all, nor can I detect any change in the (incredibly low level) motor noise when the pulley is attached or removed. I could detect a change in the motor noise when I relubricated the bearings with synthetic oil (Mobil 1). I said "pulley" because this is not being used in a belt drive system, it's driving a Garrard 301. For those interested, with the heavy Garrard platter and the stiff grease bearing the motor pulls up to speed in less than two seconds. It has more power, more torque and a better speed / torque curve than the original Garrard motor, despite being about one fiftieth the size.

12th May 2006, 07:58 AM	#189
hov diyAudio Member Join Date: Jun 2004 Location: Bg	mark kelly controller Mark; Do you have 1-PCB and parts to populate still available? Thanks, Trygve