Yoneyama

Professional
#1
I thought I would share today's project.

I have mounted my Gamma Progression 602 FC II turntable, and a Wise 2086 tension head onto a Seville 6 door tool trolley. This was inspired by some photos I saw posted here by another member in an older thread.

What I used to do this:

- Seville UltraHD 6 Door Tool Trolley (you could use any mounting surface you like really)
- 25mm Linear Bearing with a Flange mount, and cap screws to suit
- Wise 2086 Tension head, with the regular dropweight bracket
- 6 MDF wooden craft coasters (to space the flange mount such that I could retain 360 rotation)
- Self-adhesive measuring tape

I have also ordered a much more heavy duty flanged bearing, as I am not too confident in the item I used for a few reasons. Firstly, the mounting bolts are only 5mm. Secondly, I hate the idea of using these MDF wood spacers. The heavy duty item I have ordered is naturally high enough to retain 360 rotation. And thirdly, there is a bit of play in the current bearing so there is a tiny bit of turntable wobble (not much more than the original Gamma base). Unfortunately there is no set screws in this bearing to compensate for the wobble, however the heavy duty replacement I have bought has these adjustments.

Anyway here is some phone pictures.







The MDF spacers allow me to raise the turntable high enough.





Self-adhesive measuring tape. Awesome stuff and will make measuring string much easier. It came in a 2 meter reel, so I will use the rest to make a balance board next I think.



Here is a picture of the heavy duty flanged bearing I have ordered. As soon as it comes I think I will swap out the first item used. This new one has much bigger mounting holes and adjustment to limit shaft movement.

 
#3
Looks sweet! So that wood top is rigid enough on its own, or is there metal from the cabinet underneath as well? And I dig the self adhesive measuring tape, but my OCD ways has trouble reconciling with the fact that "0" doesn't start at beginning of the tape/edge of table, since they chose to make "0" centered under the marking line.
 

Yoneyama

Professional
#4
looks very clean :) nice work!
Looks sweet! So that wood top is rigid enough on its own, or is there metal from the cabinet underneath as well? And I dig the self adhesive measuring tape, but my OCD ways has trouble reconciling with the fact that "0" doesn't start at beginning of the tape/edge of table, since they chose to make "0" centered under the marking line.

Thanks! The benchtop is hardwood so it is quite rigid and I don't see it having any issues with the items mounted on it. The turntable bearing mount is definitely the weakpoint purely due to the tiny bolt size, but when I replace it with the heavy duty item it will be much more peace of mind.

I agree, it drove me up the wall that the measuring tape didn't start at 0 as well! Oh well
 
#5
It looks great and having all those drawers handy means you won't be having tool tray issues but I am wondering about the distance you will be leaning. I just measured the distance from the middle of my turntable to the front edge of my machine. It's just 7-1/2". Yours looks to be about twice that if you include that rail/handle.
 
#6
It looks great and having all those drawers handy means you won't be having tool tray issues but I am wondering about the distance you will be leaning. I just measured the distance from the middle of my turntable to the front edge of my machine. It's just 7-1/2". Yours looks to be about twice that if you include that rail/handle.
Looks great! Yeah the distance would also be problematic for me. I like having the turntable right up next to me, sometimes to support it from turning away.
 

QuadCam

Professional
#7
Nice work. I jut realized that I forgot to respond to your question about my similar setup. I'm glad you worked it all out!

here's mine:

 
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Yoneyama

Professional
#9
It looks great and having all those drawers handy means you won't be having tool tray issues but I am wondering about the distance you will be leaning. I just measured the distance from the middle of my turntable to the front edge of my machine. It's just 7-1/2". Yours looks to be about twice that if you include that rail/handle.
Looks great! Yeah the distance would also be problematic for me. I like having the turntable right up next to me, sometimes to support it from turning away.
I did consider that and given my height and the height of the trolley, I actually won't be leaning over at all. But I guess I will find out once my string order arrives! If it is problematic I will just mount the new bearing flange closer to the edge but hopefully it's not!

this is how I spaced mine up to allow for 360 degree rotation. It's through bolted and nutted under the wood top.

That's a good idea too. Your spacing solution is better than my current version I think. I think the Alpha turn mechanism is a bit different to Gamma (yours looks easier to work with). The Gamma is literally just a shaft that you slide into a bearing/bushing, so it was a bit of a gamble when I bought my first flange.
 
#10
Wow. I had been looking at what are described as “medium duty” bearing assemblies for mounting a 602FC turntable and Wise to a 6061 aluminum rectangle for a portable, light, modular solution. It is a small thing, but I do like a nice bearing rotation. Am very interested in your results. Beautiful work!
 

Yoneyama

Professional
#11
Wow. I had been looking at what are described as “medium duty” bearing assemblies for mounting a 602FC turntable and Wise to a 6061 aluminum rectangle for a portable, light, modular solution. It is a small thing, but I do like a nice bearing rotation. Am very interested in your results. Beautiful work!
What sort of bearing assemblies did you find? Feel free to link them here.

This is the sort of assembly that I have used at the moment.



The rotation is just as smooth as the Gamma bearing, however there is a tiny bit more wobble/play than I would like. It may not bother some people. I will update this thread when the heavy duty item I bought arrives. The set screws in the HD item should allow me to eliminate any wobble.
 
#12
I recall seeing that one somewhere. Amazon has the below, used, for $12. Your shaft may be different. It would be a lot better if it was 3 inches tall, like above. The sleeve that holds the shaft looks like it is only about an 1 1/2 inches in length, which may not be enough. My last Revo had a very silky bearing assembly. The plastic sleeve 602fc seems like it would be adequate, but not much joy in it. It is a very light solution, though.

https://www.amazon.com/gp/offer-listing/B007RHBCYW

 
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Yoneyama

Professional
#13
I recall seeing that one somewhere. Amazon has the below, used, for $12. Your shaft may be different. It would be a lot better if it was 3 inches tall, like above. The sleeve that holds the shaft looks like it is only about an 1 1/2 inches in length, which may not be enough. My last Revo had a very silky bearing assembly. The plastic sleeve 602fc seems like it would be adequate, but not much joy in it. It is a very light solution, though.

https://www.amazon.com/gp/offer-listing/B007RHBCYW


Yeah that is the type I have bought to trial next. My turntable is a 602FC and has a 25mm shaft. The shaft length I am hoping is not an issue as there will be an amount of shaft exposed below the flange. I am hoping that the two set screws will pick up any wobble. I got mine new from China for like $20 so it wasn't too expensive of an experiment.
 
#16
I am wondering about these flange bearings you guys are posting pictures of.

My only experience with this type of bearing is inside the tension head of my machine where they are smaller and used to support a rapidly rotating lead screw. They are designed to rotate but more importantly they are designed to swivel in the housing. In other words, they aren't limited to being perpendicular to the flange. They can reposition in the same way that your eyeballs can swivel up, down and sideways. In a high speed application this I believe compensates for vibration and wobble. As a support for a turntable vise, well, I hope your flange bearings are different than the ones I got. You don't need swivel.

 
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Yoneyama

Professional
#19
The reach is ok?
Do you mean the reach of the strings to the tensioner? If so, then the distance between the turntable and diablo is the same as it is on the Gamma base.

If you mean the reach to the turntable, as in my arms, then it appears to be excellently positioned. My string order should come this week hopefully, or next, and I will report back after.
 
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