nice, my http://ssguitar.com amp kit arrived
Show this thread
-
so my plan is to also repair the Ruby amp I built years ago, and design the cabinet so that I can swap out the amp circuit (using a jack to connect to the speaker instead of hard-soldered wires)
Show this thread
(I don't know why sketchup wouldn't let me draw a measurement across the whole diameter of the speaker opening, only the radius, but oh well.)pic.twitter.com/ru1GdJM5gV
-
-
because good ideas are for chumps (and because plywood end grain isn't pretty) my plan is for all the edge joints to be mitered (but because it's 1/4" plywood, I'm also going to drive screws into those triangular corner braces)
Show this thread -
This is the speaker, which is enormously overkill for these little amps, but I originally meant to build an LM3886-based ~40W circuit for it. It's 8 ohms, so with a 12V supply the Honey amp should push a max of about…0.85W of power.pic.twitter.com/pHs9ebHxPL
Show this thread -
-
instead of those triangle braces I could just do an internal frame…I'd have to modify the shelf design to fit inside it. (dimensions based on the actual thickness of the nominal 1/4" ply being 0.2", which I think is just about correct.)pic.twitter.com/6BieiXC6vZ
Show this thread -
what I have is an 8' 1x6, so I'm assuming I rip it down to four 1.25"-wide boards across.
Show this thread -
…it is also possible I'm making my life harder than it needs to be with those corner joints, but what's the point of a project like this if you just do everything the easiest way, anyway?
Show this thread -
I'm going to need another couple of TS jacks (I'm inclined to use 1/4" but I'm not sure it's necessary? 1/8" might be fine) and a patch cable, for connecting the amp boards to the speaker; and a 12V wall wart and socket for it, and some extra wire.
Show this thread -
Since I'll need to visit my folks and use my dad's tablesaw for this project, if I do the internal frame I'll have to wait for the 1st of June (or maybe the 1st of July) to cut the four vertical pieces.
Show this thread -
"why the first of the month, Scott?" Well, because those ends are double-rabbeted, of course.
Show this thread -
-
Also, I'm going to have to think about the clamping situation. I don't know if my dad has pipe clamps or just C-clamps.
Show this thread -
Maybe I should make a papercraft 1/4 scale model to make sure the whole design works
Show this thread -
on the other hand, those double rabbets might be hell to model at that scale. the good thing about the frame idea is that if I can get four boards across out of that 1x6, I only need about 38" of length, so I can fuck one up and still have plenty of material to do another.
Show this thread -
so if I make that internal frame, then screw the plywood sheathing to the frame (and glue and clamp the edges as well as I can), that should be pretty solid.
Show this thread -
but I do need to redesign the removable amp/controls shelf so that it fits inside the frame
Show this thread -
oh wait, I need to move the horizontal front piece of the frame down to sit below the amp shelf, too. that simplifies the rabbets on the top front corners, also.
Show this thread -
-
…might want to put some runners along the sides, though, for the shelf to rest on, or maybe just crosspieces? need to think about that more.
Show this thread
End of conversation
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.