HD800 Resonator Tweaks and Experiments a la HD800S

I'm decent at making 3D models, if anyone wants to draw up a few hand-drawn schematics, I can turn them into stuff people can order from Shapeways.

 

That's a great idea! If we can get the exact measurements and calculations, then a 3D printed option would make modding so much easier and less scary.

 

Right. The nice thing is we can print it out of a nonresonant flexible plastic that has a bit of give to it, like Elasto Plastic, or we can get highly precise with the ultra precise resin options, not a Shapeways sales rep here but the site is pretty addictive, I've spent about $10k there this year. Not a lot of limits to what we can do with it since it's printed a la carte, we may well be able to beat whatever Sennheiser is doing. I'm happy to print off the first round and send them to someone who wants to do hardcore measurements on them. Plastic pieces run 2-3 bucks each.

 

I think as a community here we can figure something out and keep testing until we perfect it. I didn't even think of 3D printing for this mod (or the previous anax mod) until now. We also have a member, Tak, who does 3D printing designs.

And it's nice to see you here Peter

 

@purrin nice approach I also tend to find with stock some tracks as harsh especially pop songs like the taylor swift stuff you mentioned
what do you think about the HD800S approach what do you think about the harmonic resonator thing there using(whatever its called)

 

The great migration has already started. Hunting season has been opened for hd800 in the wild.

 

I'm greasing my rifle.

Ali

 

Make sure you've got the ammo.

 

This little guy is 17mm diameter to fit the driver center, and 10mm high. Base is 1mm thick.
Would be fun to play with this some more, but no way of knowing exactly how the real one works...

 

Can perforate it, too.

 

Price came in at $2.78 per resonator plus shipping, printed from that semi-flexible Elasto Plastic. No idea if they'll sound good, but hopefully a step up from drinking straws. I shall ready the various foams to stuff into them. I've got 4 so I'll send Purrin 2 assuming they are semi-successful.

Edit: For just $25 per cup, you can print this little stinker out of aluminum.

 

Interesting design. Putting the perforated part at the top would allow the resonator to be tuned by plugging the holes with some sort of clay or the likes as this would change the effective port cross sectional area.

 

Plot twist: you can invert the resonator and still stick it down, then stick stuff in the holes.

Would be easy enough to make a locking ring that gets stuck permanently against the driver's center ring, the brave could superglue it. It would let you twist on compatible resonators.

 

Sure, can increase the volume by either making the whole thing taller, or attempting to thin the walls further, to the printing limits.

 

Here it is with the walls heavily thinned out and then spot repaired to have the minimum printable thickness. This is about as much tube volume as we can pack in. Also it's been extended to 12mm high. Bottom is sealed, no holes. Ordered 4 more of these ($12).

After this I can start over and go for longer ellipses too, to pack the maximum in.

 

Where can I get the material you used in the drinking straws (if you want to release that info)? I will try this out tomorrow if I can find the supplies.