DL-44 ESB Blaster Discussion - Greeblies POST 208
- Thread starter Boba Debt
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I just got confimation from a guy who repairs and restores turntables and has seen a fair share of bearings.
The metal disc that was covered by the mystery knob is indeed a turntable bearing cap from a Thorens turntable or a turntable with similar bearing design. Both Lenco, Garrard and Thorens have that type of bearing.
And Lenco also supplied plastic dust caps for their bearings - meaning that mystery knob simply could be a dust cap for a Lenco bearing.
The metal disc that was covered by the mystery knob is indeed a turntable bearing cap from a Thorens turntable or a turntable with similar bearing design. Both Lenco, Garrard and Thorens have that type of bearing.
And Lenco also supplied plastic dust caps for their bearings - meaning that mystery knob simply could be a dust cap for a Lenco bearing.
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.If you talk to someone who repairs something else ... maybe vintage cameras, chances are that guy will swear it is 100% from a vintage camera.
My point is it is quite generic cover disc with 3 holes and they were used on all sorts of devices. Could be from a turntable could be from many other things.
My point is it is quite generic cover disc with 3 holes and they were used on all sorts of devices. Could be from a turntable could be from many other things.
Of course it could be a generic cover - and yeah, probably the same answer from a camera repair man.
But, with the information and other factors:
Since the screwholes on the middle brass tube lines up with the metal discs screw holes.
And that circular indenation on the metal disc which would be caused by a heavy turntable platter.
(the ones ive seen on the internet, has the same type of circular indenation)
I base that and the knowledge from the guy i spoke with as leaning more towards a turntable bearing cap, main bearing (the brass tube between the pistol and the scope mount)
Heck, the mystery knob could be a dust cap from a Lenco bearing.
We already worked through these ideas at least 4-5 years ago. A member was able to see the blaster in person on exhibit and the outside disc is 2-3mm thick and just flat. No indentation or bump, and the screws aren’t exactly lined up. The spacer is most likely solid metal because the nuts on the other side do not line up. We were able to rule out the Thorens thrust bearing plate this way.
So completely ruled out, just because of that? Why can't it be turntable bearing parts?
Even with the fact that there are two pieces that fits perfectly together - a turntable thrust bearing plate, and a turntable bearing.
And that a guy who's spent years restoring turntables, and saw that photo and said, yes, that is a turntable bearing plate.
Instead of using already existing parts, they machined a new metal disc and a brass rod that somehow ends up looking identical to a turntable thust bearing and bearing plate?
And thoose nuts, could simply be holding the bearing thru the pistol body, with two holes drilled into the bearing.
Or perhaps there were three holes drilled thru the pistol body where the scope bracket was mounted, and that the nuts on the other side is just there, for looks.
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I’d recommend reading through that discussion thread first, a lot of this information is already there, including the brainstorming. Try using the search bar above ^
In short, we were able to map out the fasteners, and the two nuts and the three screws don’t line up. The spacer is not brass, it’s silver metal with glue and crap all over it. Most likely these pieces were machined at the same time as the machined bracket, a solid spacer held to the other side of the gun, and three screws tapped into the solid spacer. Here is my build
In short, we were able to map out the fasteners, and the two nuts and the three screws don’t line up. The spacer is not brass, it’s silver metal with glue and crap all over it. Most likely these pieces were machined at the same time as the machined bracket, a solid spacer held to the other side of the gun, and three screws tapped into the solid spacer. Here is my build
As it was mentioned earlier in this thread - I also find it hard to believe that there are 2 items that are this similar.
And to back that theory up, i have asked and 5 individuals have said the same, that this disk is in fact a main bearing end cap from a Thorens turntable.
And, at #132 there was some measurements taken from an image and theese measured the disc to around 27mm + - ( if that is correctly measured, dunno the accuracy of the method used)
And that matches the measurements i just got from Riverside Audio, who told me that a Thorens bearing end cap is 27mm wide.
Ill probably stop now - im convinced its a bearing end cap from a Thorens TD124
And to back that theory up, i have asked and 5 individuals have said the same, that this disk is in fact a main bearing end cap from a Thorens turntable.
And, at #132 there was some measurements taken from an image and theese measured the disc to around 27mm + - ( if that is correctly measured, dunno the accuracy of the method used)
And that matches the measurements i just got from Riverside Audio, who told me that a Thorens bearing end cap is 27mm wide.
Ill probably stop now - im convinced its a bearing end cap from a Thorens TD124
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Believe what you feel comfortable with...but I own(ed) an actual Thorens cap and while being a REALLY close match, it is not what was used on the blaster.
Like written before...this community discussed this very topic many years ago, even based on actual reference pictures which only a few people have access to and the Thorens part is INaccurate. As a matter of fact, I strongly believe, it´s not even a "solid" disk, but a simple washer with the center hole filled with putty.
I have also had a thorens - it's too thin for the right match
I currently have a thorens on mine and think it looks great. Gonna keep it there untill the part is identified. Them ***** aint cheap if you can find one. Gonna get my moneys worth out of it.
What about this as a candidate?
There is a circle-indentation here too, but less pronounced on say the TD124 bearing cap. And, as its been written here, there is some sort of resiude in the middle of prop-disc, that might as well cover the faint identation.
The disc itself is thicker, closer or match the thickness of the disc mounted on the scope-bracket.
There is a circle-indentation here too, but less pronounced on say the TD124 bearing cap. And, as its been written here, there is some sort of resiude in the middle of prop-disc, that might as well cover the faint identation.
The disc itself is thicker, closer or match the thickness of the disc mounted on the scope-bracket.
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Il'l stop now.
What about theese screw on caps a possible candidate for the mystery knob, that fell off the DL 44 on Finse?
1. The SP220 scope was made in the UK.
2. The scope was used on the DH 17, making the caps an available item for the prop builders
3. The depth seems to accomedate the height of the screws.
Not sure of the width, ive asked a guy who's currently selling one such scope.
If its 27mm +- it would certainly fit.
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I think you should be looking for something that's around 22mm (20mm-24mm) in diameter and around 3-4mm thick. Likely rounded sides rather than such a cylinder-to-cut-cone shape and knurling looks unlikely too (but knurling may be lost in such a blurry reference if it is there especially when filled with snow). At least this is my best guess looking at it. Someone who can map and measure these things in software should be able to easily pick the right dimensions by using the MGC or the piston halves as reference.
Edit: lf i compare it to the piston half it is probably even smaller diameter at around 18mm
Edit: lf i compare it to the piston half it is probably even smaller diameter at around 18mm
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Shame there is no better images of that thing. I based the width on the metal disc measure, earlier in this thread, around 27mm
But that is if the "knob" covered the entire disk or not.
Yeah but you can tell it is not true. Just looking at it compared to the size of the piston halves I think the diameter is no bigger than the piston half length that makes it 18mm. Besides it only barely covers half of the screws it is certainly not as large as the disc.
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