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PostPosted: Fri Sep 01, 2017 8:05 am 
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Joined: Tue May 30, 2006 6:01 am
Posts: 46
Location: Guelph, ON, CA
I've F-ed'-up my tonearm beyond repair and have to replace it along with my original supporting armpod I made, .......please don't ask :oops:
I suppose messing up is an expensive way to learn.

I've included a photo of the plinth I've made and location of where the tonearm would be mounted (upper right). This time around since I need to get another tonearm & make another armpod anyways I thought I'd ask if anyone has had any experience on what has worked for them if they have mad an adjustable isolated armpod in regards to height and perhaps rotation.

Right now the plinth is set up for a 9" tonearm (originally a Jelco 750D) but I am debating whether to enlarge the hole to accommodate a 12" tonearm. That would mean cutting out some more slate in the top right corner of the plinth. My main cartridge that I am using is a dl103r.

One idea I have is to use something along these lines
https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=7518&pn=LPH100

Although expensive I could make my own top platform & bolt it onto the top with the necessary tonearm holes drilled while having the base secured as well. I should mention that I am not a machinist and would not be readily able to make my own stuff. Drilling holes is ok to do but shaping metal is not.

Any suggestions would be appreciated.

Thanks
Frank M


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PostPosted: Fri Sep 01, 2017 8:33 am 
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Joined: Sat Feb 04, 2006 10:35 am
Posts: 43
Location: Toronto, ON, CA
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A few years ago I built this one to use a 12" Nottingham arm with my (heavily) modified Technics 1200.

Bottom plate is 1/4" thick aluminum, then solid 4" dia. steel and MDF on top. All bolted tightly together. 3 point adjustable spiked feet. Works great.


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PostPosted: Sat Sep 02, 2017 9:44 am 
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Joined: Mon Mar 31, 2008 9:17 am
Posts: 13719
Location: Toronto, ON, CA
That's the thickest platter mat I've ever seen, Jerr. :lol:

For a quick and easy diy armpod, use a tin can and fill it sand or metal fillings. Height adjustment would have to be accomplished with the correct thickness of whatever wood tops the can.

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PostPosted: Sat Sep 02, 2017 10:28 am 
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Joined: Sun Mar 31, 2013 6:10 pm
Posts: 2929
Location: Toronto, ON, CA
@fmena..Op...
It looks like you could remove your existing arm platform and replace it with an equally measured piece of slate...no?
Drill the holes in it and Bob's ur uncle!

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"You don't know what you've got 'til its gone
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