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PassingInterest 03-23-2012 04:40 PM

Haha! Thanks guys!
You're right, the Curvomatic made this build go much easier.
Plus, the sides can be curved and veneered in a single step, which helps speed things up.

I waited until I got the sides on the cabs, before saying much about the Curvomatic, because I wanted to see how it went.

I like it. It makes cab assembly a breeze. The great thing about the Curvomatic is you can change the curves at any time, just by making new, simple forms to mount the Curvomatic to. And, you're not limited to simple curves, you can go wavy or whatever. Check the videos at the Curvomatic site. It's worth a look.

lowpolyjoe 03-23-2012 05:54 PM

It really is looking great PI. Is that the Bubinga from the Howitzer build? Fantastic look to that veneer.

PassingInterest 03-23-2012 06:03 PM

Joe--It's the same kind of Bubinga, but from a different lot. These sheets were too small to use on the larger Howitzer cabinets.

PassingInterest 03-26-2012 08:50 AM

My friend hasn't had a chance to pick up his cabs yet and I thought I'd like to see the size contrast between these.

Straps off and Widow Makers on Mini-Guns.

Thanks for the name suggestion, dbldare!

PassingInterest 03-26-2012 09:12 AM

Trim some waste.

Getting set up.

PassingInterest 03-26-2012 10:08 AM

A few years ago I read a warning in a woodworking magazine about breathing MDF dust. It said that in addition to urea formaldehyde and glue particles, the actual fibers in Medium Density Fiberboard are particularly bad for your lungs.

When I later mentioned this to a friend who builds houses on the side, he said it made sense to him. His main job was at a disposable diaper manufacturing plant and he said they had very strict health rules in parts of the plant, because of the air-borne fiber particles.

Play it safe and protect your lungs.

I wanted to try this along the front edges.
The curved cabinet can rock and ruin the edge, but as long as I keep it angled enough throughout the cut, I can sand it the rest of the way later and avoid building a one-time use carriage or trimming jig, which most people won't want to build anyway. This seems easier.

The front went well enough that I decided to do the back the same way.

lowpolyjoe 03-26-2012 11:56 AM

Originally Posted by PassingInterest View Post

Play it safe and protect your lungs.

+100. that dust is nasty. i don't even go into my garage without a mask these days if i'm going to be in there more than a minute or two. hoping to put up some plastic sheeting soon to keep that fine MDF dust from filling both bays of my garage during future builds.

Originally Posted by PassingInterest View Post

Unless my eyes deceive me, looks like you got the same dent from the router bearing edge that i got in my recent curved build doing a similar trim. Are you going to use the iron-and-water approach or something else to get that out? Or are you going to fill it and veneer over it? My cabinets were small, but you have a much longer line to deal with. Very curious how you address it.

PassingInterest 03-26-2012 02:16 PM

Joe--By the time I finished sanding, the bearing-dent line was nearly gone. I puttied what remained of it.

I can grind things down pretty fast with the Bosch set to Agressive mode.

I can finish it with the Bosch, but the Festool is pretty nice.

lowpolyjoe 03-26-2012 02:21 PM

Definitely jealous of your tool collection

petew 03-26-2012 05:33 PM

and skill (gift)!

Woodfiend 03-26-2012 07:04 PM

I am jealous of your veneer. I had veneered some boxes with raw waterfall bubinga but hadn't trimmed the overhanging edges.... well apparently the boxes were in my wife's way. She moved them and stood them up on the ends and broke off and cracked the veneer up into the sides of the speakers themselves ...... needless to say I haven't touched them since. I don't have the heart.
I have started new boxes though....

Nice work all around. I enjoy following your threads.

Audiophile34 03-26-2012 07:23 PM

@woodfiend.. where is she buried?

@passinginterest.. phenomenal build, absoluty pristine.

PassingInterest 03-27-2012 06:15 AM

Thanks guys. You are way too kind.

Woodfiend--sorry to hear about the veneer getting wrecked.
You're right, sometimes you just have to set it aside for a while.
If you find that you can't repair it satisfactorily and need to remove it and start again, a heat gun will soften most glues enough that you can scrape it off easily. You probably know that already, but others reading this might find it helpful.

Waterfall Bubinga was my first choice for this project, but the few leaves that I have on hand are not wide enough to cover a side without stitching and I didn't want any seams in the sides, except at the front baffle.

djkest 03-27-2012 06:39 AM

I was wondering how I was going to get the back of my curved cabinet build flat. I think you have the right idea! I'll flush trim it as close as I can get, and then use a wide sander to flatten it out. Awesome. I do also have a 12" plane that I used a lot, works OK but planes take actual skill so not real good for me.

Might take me a while to sand 35"...
Layers are all 1/8", Baltic birch plywood, MDF, and then 1 layer of HDF on top. I am going to paint mine I think, since I am scared of veneer.

PassingInterest 03-27-2012 07:26 AM

djkest--My cabs are small enough that I went a different way, but since you have four 35" edges to contend with on the backs alone, you might want to consider another approach to make things go faster and easier for you. The trimming jig shown in my Howitzer build might work well for you. Just adjust the size of the bottom plate to suit your needs. Adjust your depth of cut to leave just a little to sand off.

Taken from the Howitzer thread:

Perhaps you'll veneer a future cabinet when you're ready.
Hey, how about a link to your build? It's looking really good.

lowpolyjoe 03-27-2012 08:09 AM

Originally Posted by Woodfiend View Post

She moved them and stood them up on the ends and broke off and cracked the veneer up into the sides of the speakers themselves ......

oh man - that is a tragedy

djkest 03-27-2012 11:34 AM

Originally Posted by PassingInterest View Post

Perhaps you'll veneer a future cabinet when you're ready.
Hey, how about a link to your build? It's looking really good.

You are too kind! I am a hack woodworker but I know someone with a CNC router so that helps with some of my challenges.

Here's the build thread-

And here's the direct link to my album:

PassingInterest 03-27-2012 12:10 PM

djkest--I looked at your build thread and your photo album and it really does look great! Very nice touch on the front. After looking again, I realized that you don't have a whole lot of material to remove on the backs, so sanding is not a bad way to go, if you prefer it. You should be fine as long as you keep your sander flat and level.

Cut some veneer for the backs.

This is what I meant about the bearing dent lines--they nearly completely disappeared during the sanding operation. They weren't very deep, but they were there.

Since the backs are only 4.5" wide and 17" tall, I decided to try some 5 minute epoxy. You have to move fast, but it can be done on such a small area.

PassingInterest 03-28-2012 12:59 PM

One step closer.

filtor1 03-28-2012 01:16 PM

8 Attachment(s)
If I give you my address, will you send those to me. Killer job PI!

PassingInterest 03-28-2012 03:24 PM

Haha! Thanks, Filtor1.

Veneered both tops.

mjaudio 03-28-2012 06:21 PM

1 Attachment(s)
Now that's what I like to see, a Dusty Shop Floor and your workshop resembling mine during a build! Now I don't feel so bad when it takes me awhile to clean up

Square88 04-01-2012 02:55 AM

Looking forward to your next update.

PassingInterest 04-01-2012 08:43 AM

Thanks guys.

MJAudio--I kind of miss my old friend Dusty ShopFloor. I think of him sometimes when I fire up the shop vac. (For those who don't know already--Dusty ShopFloor was a screen name that I used briefly).

I got hit with a nasty cold, so I am taking some time off until I get better. This one is dragging on like it doesn't know that I have better things to do.

My next step is to trim the tops and veneer the bottoms.
Then comes the front baffles.
Somewhere in there, I still need to make the crossover boards, which I meant to do earlier, but things came up and that part got set aside.
I also need to make stands.

What you see in the last photo is exactly where things sit right now.
Stupid colds.

BeerParty 04-01-2012 12:24 PM

Originally Posted by PassingInterest View Post

I got hit with a nasty cold, so I am taking some time off until I get better.

Hope you feel better soon, PI.

That veneer on the curved cabinets is looking fabulous. Don't rush the finishing; if you are not feeling well and push yourself you are more likely to make a mistake.

PassingInterest 04-01-2012 01:49 PM

Thanks, Chris. I am definitely taking it easy until this cold is gone.

PassingInterest 04-04-2012 10:53 AM

I'm still not 100% over this cold, but I'm back in the saddle again.

Trim the tops.

Veneer the bottoms.

PassingInterest 04-05-2012 06:46 PM

Plane some Ash.


Trim one edge.

I ran some errands and ran out of time, so that's as far as I got and I just now realized that I neglected to take any shots of the cabs as they are now, after sanding the tops and bottoms. I'll get a shot or two of that tomorrow.

tuxedocivic 04-05-2012 07:00 PM

6 Attachment(s)
You must have a bunch of Ash stored up. Making stands?

LTD02 04-05-2012 08:23 PM

have you considered making an instructional video or two? seems like each step could be made into a short vid. there is just so much wisdom in your work, a pic or two just doesn't seem to do it justice.

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