I need to make myself one of those signs
I wouldn’t mind posting up outside for a few hours and a few brews
I would rock it at an audio expo ....
I wouldn’t mind posting up outside for a few hours and a few brews
I would rock it at an audio expo ....
Made a template out of wood. I started with some pieces of aluminium but decided against it. Too dangerous for my current state of health 😉.
So wood it is.
Locking the driver in place:
Using old fashioned hand tools:
A hand-down from my father, no idea how old it really is, I remember him using it when I was just a kid some 45 years ago...
Much to my surprise I still could get new blades for it so I bought one specifically for non ferro metals (alu, copper etc.).
Not too much thinking, just doing 🙂. Not much heat or vibrations and easy enough to work.
That concludes this adventure. Very doable even with these old hand tools.
I just might opt to do all cutting this way. Save without any heat build up.
All it takes is some time...
So wood it is.
Locking the driver in place:
Using old fashioned hand tools:
A hand-down from my father, no idea how old it really is, I remember him using it when I was just a kid some 45 years ago...
Much to my surprise I still could get new blades for it so I bought one specifically for non ferro metals (alu, copper etc.).
Not too much thinking, just doing 🙂. Not much heat or vibrations and easy enough to work.
That concludes this adventure. Very doable even with these old hand tools.
I just might opt to do all cutting this way. Save without any heat build up.
All it takes is some time...
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Ronald,
Nice bit of work there! Your Dad's saw came in really handy for job - I like it. 🙂
Can you please share a more close up pic of the front side of the driver after modifying the frame?
Nice bit of work there! Your Dad's saw came in really handy for job - I like it. 🙂
Can you please share a more close up pic of the front side of the driver after modifying the frame?
As can be seen, the lip of the surround on the 10F is slightly larger than the one on the TC9. Making it an almost surgical cut to get it to the same dimensions 😉.
The cut is at 84 mm width.
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That's a very nice precision cut wesayso, bravo!
The truncated driver looks great... now 49 more to go... 🙂
The truncated driver looks great... now 49 more to go... 🙂
Indeed, that's tight!
The holes also are different.
Is the center hole position still close enough?
Small holes on the 10F, 3.8 mm against 4.3 mm on the TC9.
They share the same pitch though.
All in all there's a couple of small differences here and there. But it will fit like a glove.
That might explain my thoughts of doing the cuts by hand...
More control that way and less added temperature or vibration while cutting.
They share the same pitch though.
All in all there's a couple of small differences here and there. But it will fit like a glove.
That might explain my thoughts of doing the cuts by hand...
More control that way and less added temperature or vibration while cutting.
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The template makes it quite easy and repeatable 😀.
Due to drawing the model in 3D I was made aware of these tiny differences.
That made me even more careful to figure out how to center the driver properly on the template etc.
I took a little extra time thinking about it to make sure I can get repeatable results.
Due to drawing the model in 3D I was made aware of these tiny differences.
That made me even more careful to figure out how to center the driver properly on the template etc.
I took a little extra time thinking about it to make sure I can get repeatable results.
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Next up will be putting one of the 10F's in my test enclosure to get an impedance graph. Based on earlier research with published impedance plots I might need a few minor tweaks to my filters to get them to perform comparable or even a hair better than the current filters do for the array of TC9's. Just some minute changes in the top end. A couple of Vishay MKP1837 of 0,01uF value will do the trick.
Measuring the impedance in the test enclosure should confirm if they are needed. After that it's waiting for the batch of drivers to be made.
Measuring the impedance in the test enclosure should confirm if they are needed. After that it's waiting for the batch of drivers to be made.