Impressive, indeed! What amps and processor will you be driving them with?
Thank you! I have two SpeakerPower sp2-8000 amplifiers (the ones I modified earlier in this thread to add a remote turn on circuit). Processing will be a minidsp and the XMC-2
Things are moving along nicely today, with the repetitive lifting of these boxes over the last few days I woke up with my back being an absolute mess today. Because of that I am moving slow.
When I tried to do a makeshift diy circle cutting jig I messed up the cutout a bit. I got the jasper drilled out to fit the festool router and slopped a bunch of body filler in the void and re cut it.
Otherwise I put chamfer on the baffle for decoration
I hoisted these boxes under my drill press and got the cutouts for the speakon connectors taken care of.
The outside of the boxes are done, this afternoon I am going to glue the brace blocks in place and start sealing the grain for paint.
I lied, the outside of the boxes isn’t done. I ran a pencil tip bit along the joints and will fill them with joint compound to hide the joints under the paint.
I glued the brace blocks in place after re-cutting some of them.
I started with some joint compound, I will sand and re-apply tomorrow followed by some polyester resin to seal the wood.
I lied, the outside of the boxes isn’t done. I ran a pencil tip bit along the joints and will fill them with joint compound to hide the joints under the paint.
You didn't lie. A lie is: "To present false information with the intention of deceiving".
Maybe you misspoke, or misstated your intentions, you might have altered your course, modified your method, revised upon reflection, modulated the mode, the operation may have been obfuscated so you had to transmute the effort, adapt your previous determination, changed your mind, but you didn't lie.
Emotiva XMC-2/HC-1/XPA-4/BasX A-5175, Krell Duo 300 XD, Martin Logan 13A/IW (4)/1100X (8), Emotiva Airmotiv Vaulta ATL-6.5 (4), Earthworks M23R My mother used to say to me, Elwood, In this world, you must be oh so smart, or oh so pleasant. Well, for years I was smart. I recommend pleasant. (Elwood P. Dowd)
You didn't lie. A lie is: "To present false information with the intention of deceiving".
Maybe you misspoke, or misstated your intentions, you might have altered your course, modified your method, revised upon reflection, modulated the mode, the operation may have been obfuscated so you had to transmute the effort, adapt your previous determination, changed your mind, but you didn't lie.
I got the updated, simplified designs for the LCRs and the surrounds. I put the order in for the wood and will likely pick it up tomorrow.
I have never used mud for filling gaps on a project like this before. I like how it stands but with these deeps grooves it takes a long time to dry. I will probably go back to body filler. I just wanted to see if this would be easier.
I got the updated, simplified designs for the LCRs and the surrounds. I put the order in for the wood and will likely pick it up tomorrow.
I have never used mud for filling gaps on a project like this before. I like how it stands but with these deeps grooves it takes a long time to dry. I will probably go back to body filler. I just wanted to see if this would be easier.
I'm assuming drywall mud? Wouldn't that for sure crack quickly? I like the body filler idea, but wouldn't something like fiberglass resin be the best?
Emotiva Gear: RMC-1 XPA-5 Gen 2 XPA-Four Gen 3 (Stereo Modules) C1 T1s (3) Pair of A1s CX-6 Power Strip
Other Gear: Klipsch RF-83s with all matching speakers for 7.1 Surround sound. Marantz 8002 Receiver Rotel 1080 Amp MiniDSP 2x4 and Art Clean boxes (2) Class D Sub Amps (2) 12 inch TC Sounds LMS-R (4) 18 inch Subs - FI Audio IB318 (Infinite Baffle) HTPC (Jriver and MPC running MadVR) Xbox One X Visio 65 inch M series
I got the updated, simplified designs for the LCRs and the surrounds. I put the order in for the wood and will likely pick it up tomorrow.
I have never used mud for filling gaps on a project like this before. I like how it stands but with these deeps grooves it takes a long time to dry. I will probably go back to body filler. I just wanted to see if this would be easier.
I'm assuming drywall mud? Wouldn't that for sure crack quickly? I like the body filler idea, but wouldn't something like fiberglass resin be the best?
Polyester primer (which is really the same as fiberglass resin) will be used over the filler in either case. Drywall mud or plaster of Paris is actually excellent for being covered with resin because it is pretty porous once it dries so the resin penetrates it and bonds well.
All that being said, I have just seen this is a common method for finishing wood boxes but I have never used it before. I definitely won’t do it again. The ease of sanding this stuff is far outweighed by the amount of time it takes to dry. There is also the question still of whether it will crack or not under the polyester resin. Time will tell but like you I am skeptical. I’ll stick with body filler.
The fun continues. I have been slowly skim coating the subwoofers with body filler to seal the wood and level all the surfaces.
Sanding is probably one of my least favorite activities so I have been trying to do one side of the subwoofers per day then flip and repeat. After I get the filler on I break up the finishing work by cutting parts for the FCR speakers and surrounds.
I have 75% of the parts cut for the six surrounds and all the parts cut for the three front speakers. There are wood parts all over my shop right now.
I made some additional updates to the designs, this should be the last. I beefed up the bracing a bit and opened up all the chambers by making them look like swiss cheese.
Last Edit: Apr 20, 2020 20:13:10 GMT -5 by trevordj
It was recommended on another forum that I add some additional bracing along the back panel of the subwoofer. Sounds relatively simple and straight forward. Here is the plan:
The trick will be getting the braces in since the box is already complete. This doesn’t have to be anything fancy so I can rework it if necessary.
Progress continues slow and steady. Life has taken some unexpected turns in the last week so I am dealing with that. I had put in my notice to quit my job 4 months ago as I was hired at a new job with more money and fewer hours. It is standard in my field to give three months notice to voluntarily quit. Well, I was terminated from my old job early when everything started to tank from the virus, no worries I just looked at it as a month long vacation.
Well, my new job told me two days before I was set to start that they were terminating my contract. Now I am without a job for the first time in my life. I found out about that a week ago so I have been scrambling to figure out what to do since. I am going to be starting my own business instead so all my energy has gone to that. Things are happening quickly and I think going this route will be a better move for me long term anyway.
I got some garage time today. I am carefully cutting dados for the LCRs on the router table.
I also had to assemble a miter station. I wanted a proper stop block so I cut. It all the baffles at an identical 38.5”.
Some of the dados have to have a blind stop. I used the router table for these, it wasn’t as bad as I thought.
I had to take yet another detour, I am building a vacuum for glue ups and veneers. I designed the case with fusion 360 and am cutting it out on the CNC. It is a project EVS vacuum.
I just have to cut the front and rear panels.
I’ll be using the CNC to do the cut outs for the tweeters. I’ll use the vacuum to glue up the baffles.
Sorry you are going through such turmoil. Hope things work out for you quickly enough.
My company shut down, so I was "furloughed" in March, signed up for unemployment, then a few weeks later learned that I was being reinstated (so canceled the UI) per the SBA PPP, but it still hasn't funded so I haven't been paid in six weeks - but it's coming supposedly, hopefully this coming week. I know I'm very fortunate. I know too many who are not. It's a small gesture, but I frequent local business more than usual to help even though my resources have been stymied.
I wish only good tidings.
Emotiva XMC-2/HC-1/XPA-4/BasX A-5175, Krell Duo 300 XD, Martin Logan 13A/IW (4)/1100X (8), Emotiva Airmotiv Vaulta ATL-6.5 (4), Earthworks M23R My mother used to say to me, Elwood, In this world, you must be oh so smart, or oh so pleasant. Well, for years I was smart. I recommend pleasant. (Elwood P. Dowd)
Sorry you are going through such turmoil. Hope things work out for you quickly enough.
My company shut down, so I was "furloughed" in March, signed up for unemployment, then a few weeks later learned that I was being reinstated (so canceled the UI) per the SBA PPP, but it still hasn't funded so I haven't been paid in six weeks - but it's coming supposedly, hopefully this coming week. I know I'm very fortunate. I know too many who are not. It's a small gesture, but I frequent local business more than usual to help even though my resources have been stymied.
I wish only good tidings.
Oh man, it is such a rough and strange time. I am glad you are hanging in there. Many could not go 6 weeks without a paycheck and still have any money. Like you, I consider myself fortunate. I luckily have enough savings to last 1.5 years, longer when I win a lawsuit against my employer who broke my employment contract.
I finished milling out the vacuum cabinet. I’ll glue the base and screw the sides and top (for serviceability) and hopefully I will use this to laminate the baffles tomorrow.
Last Edit: Apr 26, 2020 3:32:24 GMT -5 by trevordj
Sometimes bad things turn into good things. Kudos for making lemonade out of lemons and best wishes for success with your new company! Start ups can be fun, but intensive and I hope you still have time to enjoy hobbies and other activities that feed your soul!
I got the dados cut for the LCRs and spent the day dry fitting the boxes together. There are lots of dados and the MDF ranged in thickness from .74 inches to .78 inches so I had to adjust some of the gaps. I got everything together nicely. It’s always a good sign when the box dry fits together square and securely.
Tomorrow I am going to work on cutting about 100 holes in the braces and I am going to set up an alignment jig on the cnc so I can start cutting out the holes in the baffles. I decided I am going to wait to glue up the baffle until after I assemble the box so I can flush trim the sides to the birch sub-baffle.
I glued up and screwed the enclosure for the vacuum but I am still waiting on some parts before I can get it functional.
Some more incremental progress. Most of my weekdays are dedicated to getting my business up and running right now but I am able to sneak some time in here and there.
I got several of the holes cut in the braces and made a cutout so the woofer will clear. One of these days I will get back to prepping the subwoofers for paint. I want to get the front stage and surround speaker cabinets assembled first so I can tackle measurements for the crossovers.
The rest of the holes are cut, the relief for the speaker is cut and the cutout for the tweeter is done. I thought I was going to have to do that with the cnc but it was easier to cut a template on the router table and transfer that over.
Everything is nice and square, I will let the clamps sit overnight and glue up the other two tomorrow.
I also flush trimmed the box I glued up yesterday and vacuum pressed the baffle in place. I will do the same to the other two boxes tomorrow and get the speaker and port cutouts taken care of.
