technodanvan
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A relatively minor thing I noticed but didn't see in this thread - the fantastic crossover boards @wineds created use slightly different numbering schemes for the capacitors from those shown in the first post. In this case, C2, C3, and C4 are mixed up a little. I'm sure other users noticed this because they aren't terribly interchangeable due to the physical size difference. That or they were smart and just referenced the nice layout wineds provided in their readme.
github.com
For some reason I was referencing the first post.
In any case, I recevied the rest of the crossover components yesterday and mocked up the Bevenbi caps from Cinergy and the Mundorf resistors from Madisound. They fit! Some of the caps are a little tight (I seem to recall the 3.3uf one being a bit 'long', as was the 18uf cap) but they'll work. One thing to point out though if you go this route, some of the inductors would be a bit tight. If you go with other brands of inductors that are thicker you might run into issues. I just went with the Solen coils for this one so it'll be fine (they aren't shown because the leads are very long and I didn't want to cut them or bend them too much).
Note: There is nothing wrong with going all-Solen here. I was just trying to find alternatives in the U.S. in case international shipping+duties/tariffs remain costly. If you're ordering Solen coils it'd be kind of silly to not just buy the rest of the parts from them as well since they are competitively priced.
In other news I'm almost done with the prints I'll use for testing. The baffle was straightforward since I'll use the chamfered one I had previously designed but only printed as a test run in PLA. This one is PETG, 6 wall loops, 25% gyroid infill. Woofer fitment is a little tighter than I'd like and I'm waiting on final hardware, but this is it. Printed face-up, this printed with no supports required. I'm not a huge fan of the top surface finish, the 'final' baffle might be printed face down to get some texture, though that would require some supports to do.
Rear of the cabinet was slightly redesigned and printed face-down to test the aforementioned textured finish. No matter which way this was printed it would require supports so it seemed a good test subject. I chamfered the corners slightly to break up the hard edges a bit (this is purely for aesthetics) and added a place on the 'inside' for installation of the THD board. As with the baffle, this is PETG with 6 wall loops and 25% gyroid infill.
Finally, the first cabinet wrapped up after nearly 3.5 days and 2.2kg of filament. Also PETG, 6 wall loops and 25% gyroid infill. I started the 10% version immediately (it'll take about 2 days and 1.7kg of filament, IIRC).
Front:
Back:
I have started redesigning the cab, baffle, and rear a bit to simplify the prints. First, someone mentioned that some might prefer a cleaner look on the front, and since the rear is removable too we could just run bolt through the backside of the baffle to attach it to the cab. I initially disagreed because I like the look of hardware, but I'm now thinking a bit differently. This also impacts the spacing of the bolts on the rear since they originally matched the front - this is no longer a requirement so they can be spaced out further. I also added a cross-brace to the front because the box prints face down, so why not (I'm still thinking about making this brace removable, similar to the other braces). Lastly, I removed the groove for the TPU seals, at least temporarily, if not permanently. I'm thinking about these junctions a lot and may introduce some new pieces. We shall see.
By the by, I'll be making several baffles available. Baseline (as shown below), roundovers on vertical edges, chamfers on all edges, and faceted vertical edges with chamfers on top/bottom. Just want to give builders a choice. I will try to take measurements of each eventually.
Mechano23-xover/README.md at main · wineds/Mechano23-xover
Mechano23 xover. Contribute to wineds/Mechano23-xover development by creating an account on GitHub.
github.com
For some reason I was referencing the first post.
In any case, I recevied the rest of the crossover components yesterday and mocked up the Bevenbi caps from Cinergy and the Mundorf resistors from Madisound. They fit! Some of the caps are a little tight (I seem to recall the 3.3uf one being a bit 'long', as was the 18uf cap) but they'll work. One thing to point out though if you go this route, some of the inductors would be a bit tight. If you go with other brands of inductors that are thicker you might run into issues. I just went with the Solen coils for this one so it'll be fine (they aren't shown because the leads are very long and I didn't want to cut them or bend them too much).
Note: There is nothing wrong with going all-Solen here. I was just trying to find alternatives in the U.S. in case international shipping+duties/tariffs remain costly. If you're ordering Solen coils it'd be kind of silly to not just buy the rest of the parts from them as well since they are competitively priced.
In other news I'm almost done with the prints I'll use for testing. The baffle was straightforward since I'll use the chamfered one I had previously designed but only printed as a test run in PLA. This one is PETG, 6 wall loops, 25% gyroid infill. Woofer fitment is a little tighter than I'd like and I'm waiting on final hardware, but this is it. Printed face-up, this printed with no supports required. I'm not a huge fan of the top surface finish, the 'final' baffle might be printed face down to get some texture, though that would require some supports to do.
Rear of the cabinet was slightly redesigned and printed face-down to test the aforementioned textured finish. No matter which way this was printed it would require supports so it seemed a good test subject. I chamfered the corners slightly to break up the hard edges a bit (this is purely for aesthetics) and added a place on the 'inside' for installation of the THD board. As with the baffle, this is PETG with 6 wall loops and 25% gyroid infill.
Finally, the first cabinet wrapped up after nearly 3.5 days and 2.2kg of filament. Also PETG, 6 wall loops and 25% gyroid infill. I started the 10% version immediately (it'll take about 2 days and 1.7kg of filament, IIRC).
Front:
Back:
I have started redesigning the cab, baffle, and rear a bit to simplify the prints. First, someone mentioned that some might prefer a cleaner look on the front, and since the rear is removable too we could just run bolt through the backside of the baffle to attach it to the cab. I initially disagreed because I like the look of hardware, but I'm now thinking a bit differently. This also impacts the spacing of the bolts on the rear since they originally matched the front - this is no longer a requirement so they can be spaced out further. I also added a cross-brace to the front because the box prints face down, so why not (I'm still thinking about making this brace removable, similar to the other braces). Lastly, I removed the groove for the TPU seals, at least temporarily, if not permanently. I'm thinking about these junctions a lot and may introduce some new pieces. We shall see.
By the by, I'll be making several baffles available. Baseline (as shown below), roundovers on vertical edges, chamfers on all edges, and faceted vertical edges with chamfers on top/bottom. Just want to give builders a choice. I will try to take measurements of each eventually.
