SOLD - BC808 3D printed horns

Going to print and sell some of these horns to sustain the 3D printing "R&D" activities. ;)

BC is for @oldhand whose question started the horn. 808 is for 8 cells and crossing at 800Hz or higher. So, it's the BC808 horn. Standard Altec 1" driver 2-hole and 3-hole mount. Pictures of the actual horn pair. Took a bit over 110 hours printing time using PETG filament. These horns are 3D printed and DIY. They are not cosmetically perfect; But, as good as I can make them. Each horn is a little over 5 lbs. Asking $420. Shipping will be around $55 - $65 USPS priority mail. Shipping to Canada is around $85 or a smidge higher.

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rogerfederer

Junior Member
now that you are selling these wonders would you be willing to make a TCB version for a set of foster 10T3 drivers (a fostex FE103 variant) i have sitting around? do you have options re the color you print?
 
now that you are selling these wonders would you be willing to make a TCB version for a set of foster 10T3 drivers (a fostex FE103 variant) i have sitting around? do you have options re the color you print?
I did some calculations for the coupling chamber and modeled up a 3" TCB enclosure. The speaker would be a little over 19" tall - too high for my 3D printers. Would you be interested in a CNC cut baltic birch plywood version? I was going to make a pair anyway. Let me know.
 

rogerfederer

Junior Member
I did some calculations for the coupling chamber and modeled up a 3" TCB enclosure. The speaker would be a little over 19" tall - too high for my 3D printers. Would you be interested in a CNC cut baltic birch plywood version? I was going to make a pair anyway. Let me know.

send you a DM
 

ejfud

Junior Member
I did some calculations for the coupling chamber and modeled up a 3" TCB enclosure. The speaker would be a little over 19" tall - too high for my 3D printers. Would you be interested in a CNC cut baltic birch plywood version? I was going to make a pair anyway. Let me know.

Not sure what a TCB enclosure is, but I’d be interested.
 
ot sure what a TCB enclosure is, but I’d be interested.
TCB is tongue-in-cheek name for one of a speakers in my silly 3D printed speakers experiment.

Now that it has out performed the field, it's time to scale up to CNC 3" and possibly 4" cabinets.

Also, perhaps TCB should now stand for "The Champ" Bruce. ;)
 
I want to thank all who have shown supports and encouragements for my 3D printing experimentations, learning about horns, speaker theories and having a little fun along the way. The people on HFH are the best!

I really struggled in setting the price. It's a lot of money for an untested and unproven design using yet an unproven production technique. Really appreciate @Redboy for stepping up. It is my wish that this little hobby gets to the point where it can cover it's own expenses so that I get to do more "experiments". At the same time, reproduce these marvelously engineered horns so that they are within reach of our enthusiasts community.

I was planning on building three sets. The first one is sold. The second one in light grey should be ready next week. The third set was already "horse traded" with @Gabe.
 
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StevenZ

Pending Gold Star Member
I did some calculations for the coupling chamber and modeled up a 3" TCB enclosure. The speaker would be a little over 19" tall - too high for my 3D printers. Would you be interested in a CNC cut baltic birch plywood version? I was going to make a pair anyway. Let me know.

Could you PM me a price? I'm assuming these would work with Coral Holey baksets, right?
 

ICTWoody

No longer a junior member
I'd be interested in a black set if one should become available. I might have some interesting trade fodder too. But let me know. They would look spectacular on top of my 614 cabinets.

- Woody
 
Could you PM me a price? I'm assuming these would work with Coral Holey baksets, right?
Sorry, don't have a price since I don't have a product. The Coral Holey baskets are different. I tried modeling the cabinet for it once. It needs a chamber volume of 8.43 liters according to WinISD. Scaling TCB up would make a pretty good size speaker. Not sure I want to go there.
 

ejfud

Junior Member
Have you modeled any of the Mark Audio drivers for a TCB?

Let me know what you’re going to do, I’d love to play with a pair. I like the one with the opening on the bottom.
 
Have you modeled any of the Mark Audio drivers for a TCB?
No, I have not. The specs for them look outstanding.

The plan was to CNC out an enclosure for a Fostec 3" driver. We'll see if the design can scale up and perform and go from there. But, it's way in the back as for priority. I want to model up the KS-6368 and build a prototype - possibly from carbon fiber or fiberglass. At the same time, get the CoreXY printer to be able to print faster so I can scale up and build a much bigger printer. My poor VDCH kept getting pushed back to the end of the line. :)
 
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