My 2nd JVC M90 ** DISCO KING GHIDORAH ** Project JVC Strapped

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Cpl-Chronic

Member (SA)
Hey KIds & Mod FREAKS!!! The circus is back in town & presenting another Chronic Foundries first in boombox innovation...

For years, teens, parents & people all over were always pondering why the Mighty JVC M90 did not have the same strap & buckle hardware to accept JVC Factory issue buckle style straps. It seems odd that the 838, M70 & M80 had the clips on each top corner to accept a buckle style strap, but the M90 was without this really useful, really cool & really strong rugged option for carrying such a heavy unit....

I wanted to remedy that by homebrewing my own hack for JVC straps. I traded Blu_fuz some good condition M90 woofers for some straps & the strap clips that are installed into the M70 radios, for JVC straps.

He sent me 3 complete assemblies & a ton of extra screws which was a total bonus. I used nothing but a ruler, a 3/8" drill/bits & a set of small hand files to shape out the notches. It took about 3-4 hours of farting around to do it. If you want to be professional about it, I'm sure most guys here could bang out a crisp looking job but I wasn't overly concerned about looks. The main thing was it was the first go at it & I wanted it to work as a concept & try to polish up the finish & the details later.....

So take a look:

The screw on the back op the white plastic clip acts as an adjustable fulcrum so that the farther in the screw is, the sharper the angle of the tab has to be to release the buckle, hence the harder & farther you have to push with the screwdriver to unlock the buckle from the blaster.

You can clearly see the set screw on the reverse side of the clip. Out for looser & in for tighter, stiffer.

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So, it's good to adjust it for a balance between being too loose & sloppy or too tight & hard to use. The metal piece that all of the 3 cabinet screws use has all of the right anchor points to use on my M90. is perfect for anchoring the corners of the M90, as long as you drill your holes in the rear cabinet to line up right.

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Below, you can see the rear cabinet screw hole of the metal bracket...
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Here's how it looks with the rear cabinet screw installed It screws directly into the bracket & hold the corners tight together....


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More to come....

Cpl
 

blu_fuz

Well-Known Member
Staff member
FIRST!


I still can't believe you did it getting the JVC M70 strap mounts to work in a M90. Never would have thought! :cool:


I was thinking about the 'set' screw you mention to increase/decrease tension in the plastic clip for the strap hardware. This is entirely a coincidence because that screw is for holding the handle to the strap mounts. The more you tighten the screw, it makes the handle less floppy. Without the handle in place to stop the screw from going in so far, maybe it now just goes far enough to act as a clip tensioner!
 

trippy1313

Member (SA)
Way to go! Looks real good. I agree it's odd they made strap mounts for the other boxes but not for this, unless they thought it was "too big" to carry for long periods. Hence also the smaller handle which is also odd. Very cool Cpl.
 

Cpl-Chronic

Member (SA)
trippy1313 said:
Way to go! Looks real good. I agree it's odd they made strap mounts for the other boxes but not for this, unless they thought it was "too big" to carry for long periods. Hence also the smaller handle which is also odd. Very cool Cpl.
Thanx!! It's abit ugly & not perfect by a mile but it is functional now & the secret to the strength of these strap clamps are the mounting on the side panels with the corner rear case screw hole in each steel bracket...all 3 anchor points combine to make a really strong connection for the strap...The whole top of the M-90 could be cracked up & it will still support itself by the strap...but if the side crack, then it'll be weakened....

Cpl
 

trippy1313

Member (SA)
Cpl-Chronic said:
Thanx!! It's abit ugly & not perfect by a mile but it is functional now & the secret to the strength of these strap clamps are the mounting on the side panels with the corner rear case screw hole in each steel bracket...all 3 anchor points combine to make a really strong connection for the strap...The whole top of the M-90 could be cracked up & it will still support itself by the strap...but if the side crack, then it'll be weakened....

Cpl
Ugly or not, it looks strong and like it should work. If anything, it's also a good enough setup/idea to build off of and eventually come up with an even more factory look. Great work really.
 

Cpl-Chronic

Member (SA)
Thanx, yeah you could really adapt these clips to any blaster that has the room along the top corners.....

Cpl
 

SLO

Member (SA)
Genius I say! Who woulda thought the M90 would ever have a strap like that? Cpl-Chronic that's who! Good idea man, and great execution!
 
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