FH3-inspired Foam Core Mini Build

No rush and thank you for your Xmas present to the DIYA community!

What 3D CAD software did you use to model this? If you post the 3D model, people with know-how can also modify the holes to their liking saving you time of having to make the mod yourself. Usually, an IGES file is readable by most packages. if you don’t want to post this that’s ok and we understand.

Thanks.
 
The datasheet is here but it’s not very clear what the hole diameter is based on the sheet.
What is the mounting information for the TC9FD18-08?
Cutout Diameter: 76 mm.
Overall Diameter: 93 mm.
Mounting Depth: 45 mm.
Bolt Hole Circle: 85 mm.

Sound Imports at least gives the mounting bolt circle diameter.

Hang on - I quickly went to measure mine (not very accurate), but it's mounted in a mini Karlsonator and looks more like 89mm. Someone will have to confirm the correct measurement. Sorry.

Btw - I really loved the sound of the TC9FD in a mini Frugal Horn I built for someone else. It was not exactly the same plans as the one in this thread, but very close.
 
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I found that peerless makes the driver. the bolt pattern is 89.50. the cutout I used is based on XR suggestion using ScanSpeak 10F/8424, so the cutout I made 79.5 mm diameter and has the same bolt pattern, I also put a big chamfer on the back edge of the cutout. the screw holes are 3.0mm, you can tapped them for a m4 but the drivers usually come with self tapping screws. also the walls of the BLH is 12mm thick not the 15mm, my mistake. I did IGES files as well but the site will not let me see the files to post, I'm assuming that type of file are not allowed to be posted? also I posted a picture of the cement that I used to bond the 2 halves. the cement melts the surface some and will fuse the 2 surfaces. it sets fast too. Merry Christmas everyone!



https://products.peerless-audio.com/transducer/193

519R4dCyUVL._AC_SX679_.jpg
 

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