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Vpi 3d Tonearm - Counterweight fitment

Question for anybody that owns a turntable with one of the 3d arms.

How well does the counterweight fit?

I have an issue... But not sure if it is an issue. The diameter of the hole on the counterweight is almost 2mm larger that the outside diameter of the back of the Tonearm. This means that the fitment of the counterweight is very loose since there is literally a 1mm gap all the way around. This makes setting tracking force and azimuth almost impossible.

The thumbscrew they included is useless, since you really have to crank it down through the insert just to make contact with the Tonearm.

Vpi sent me another counterweight but it is identical, same issue. Their solution was to send me a set screw with an Allen wrench so I can get more leverage to crank the screw down....

At this price point I'm having a hard time accepting this as a solution. Wondering if this is how these things are supposed to fit?
128x128sydbar81
jjss49's avatar
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jjss49
6,612 posts
 
yep firm fit as stringgreen says - friction lock

if they sent you two counterweights and its the same problem you better check if your arm is a genuine unmodified plastic arm
sydbar81's avatar
sydbar81 OP
5 posts
 
I bought this turntable with this Tonearm direct from vpi, not sure if I'm not explaining myself clearly enough to them or what...

The counterweights they sent don't even seem close to fitting properly, looking from the back of it when mounted you can literally see through the other side of the counterweight  through the gap.
slaw's avatar
slaw
20,602 posts
 
Either the tonearm or counterweight was not manufactured correctly. If you have a caliper, measure the diameter of the tonearm' end. Relay that info to VPI.
jjss49's avatar
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jjss49
6,612 posts
 
@sydbar81 and @slaw

that is what i was getting at as well

these 3d arms are ’printed’ off a computer program spec -- a small slip up in the entry of a diameter or some other dimension is easy to do, then what comes out of the resin printer is off

i have had stupid QC issues with VPI before... so not out of the question this happens
slaw's avatar
slaw
20,602 posts
 
Agreed @jjss49. I measured mine, it is 1/2" OD. (outside diameter).
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