New sub cab builds

RE: New sub cab builds, posted on April 21, 2024 at 15:20:25
Story Audiophile Posts: 11158 Location: NJ Joined: December 11, 2000	shipping from most places (not just amazon) has sucked pretty bad lately, hope you end up with the right part and don't have to go through this again. If you do, then go to your local Hardware Store. I wonder if Amazon makes anything whatsoever. They are just an intermediary like the local but far bigger and only make money

RE: New sub cab builds, posted on April 21, 2024 at 15:41:35

emailtim
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Yep, Amazon shipped one order to "my" home in another state even though I NEVER lived in that state (nor its surrounding states). They only have 1 decades old address on file which isn't where they shipped it and then they want me to verify the address they used 100 times before that never changed. The shipper blamed it on Amazon. Amazon blamed it on the shipper.

I used to get immediate shipments because I am close to a distribution hub. Now they artificially hold the order, then send me a shipping notice and the order arrives within an hour or 2 of the shipping notice (after they delayed it).

Local hardware stores and big-box stores don't have the specialty bits, else I would have bought it locally.

Will try Rockler, Woodcraft, Lee Valley, etc. specialty stores next purchase.
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the local may be able to order it so give that a try /nt , posted on April 22, 2024 at 03:38:41
Story Audiophile Posts: 11158 Location: NJ Joined: December 11, 2000

"Amazon" is some meth dealer in a white van. There is no "Amazon", posted on April 22, 2024 at 10:18:16
Chip647 Audiophile Posts: 2686 Location: The South Joined: December 24, 2012	Just buy parts from those who make them.

RE: "Amazon" is some meth dealer in a white van. There is no "Amazon", posted on April 22, 2024 at 10:25:33

emailtim
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Not every OEM does direct retail.
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Whiteside RU5200T

RE: New sub cab builds, posted on April 22, 2024 at 17:16:00
Pete B. Audiophile Posts: 72 Location: Central NJ Joined: January 26, 2001	My guess is that somebody bought it and returned it, but substituted the crappy piece and kept the good one. Amazon accept returns pretty easily, and I'm sure whoever received it at the warehouse had no way of knowing whether the contents were correct or not.

Correct replacement part arrived, posted on April 22, 2024 at 17:29:21
emailtim Audiophile Posts: 6090 Joined: July 2, 2017	Proper part number, proper packaging, new unused appearance, razor sharp, proper number of flutes, proper cutting length and diameter. . 2022/03/30 Historical Records CENSORED

RE: New sub cab builds, posted on April 22, 2024 at 17:44:21

emailtim
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The part # is printed on both the packaging and the part. The part numbers do NOT match.

Warehouse workers didn't need to know the difference between double and triple flutes, just compare part #'s.

New and used was obvious to anyone. Sawdust was inside he tube.

An employee at Costco told me they have scammers trying to return large panel TVs where they buy a new TV and put their old beat up TV (different brand and model) in the box. Then they try to get a refund on the new TV.

Costco now opens the boxes to compare make, model and serial numbers before issuing refunds.
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McMaster-Carr?, posted on May 7, 2024 at 09:34:59
Lew Audiophile Posts: 10961 Location: Bethesda, Maryland Joined: December 11, 2000	I don't say they make all that they sell, but they do fill orders and ship promptly, and they do carry nearly anything you can call hardware. I avoid Amazon as a matter of course.

RE: New sub cab builds, posted on May 23, 2024 at 11:11:28
Brad225 Audiophile Posts: 163 Location: Tampa Joined: December 25, 2006	Whiteside does make very high quality bits. They are my first choice for my wood shop. Amazon, that is a different story. I do purchase from them regularly, it is kind of buyer beware.

RE: New sub cab builds, posted on May 23, 2024 at 11:26:17

emailtim
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The Whiteside Upcut spiral bit is working out well.

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RE: New sub cab builds, posted on May 23, 2024 at 13:30:53
Brad225 Audiophile Posts: 163 Location: Tampa Joined: December 25, 2006	Nice job Tim. I would like to see other pics. My life has been antique restoration-reproduction furniture. Custom designed furniture, speakers or anything wild a customer comes up with.

RE: New sub cab builds, posted on May 23, 2024 at 15:27:58

emailtim
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This is a hobby for me.

This is the first time I have tried doing a stave and spline build. 10 x 9 degrees makes a semi-circle, 20 x 9 degrees makes a full circle.

The sub is a variation on a Ripole design with forwards and backwards facing U shaped wells.

The front well has a restriction which lowers FS, flattens response curve and increases velocity (higher output) over back well at the expense of reducing high frequency extension.

Splines are cross-grain to the slots for strength and alignment.

I used a combination of router jigs and a flush cut table saw fence to round the semi-circles. Rounding on the TS is sometimes frowned upon.

This project is giving me a chance to experiment with new fabricating methods and jigs.

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lotta work and looks really nice, posted on May 23, 2024 at 15:52:31
Story Audiophile Posts: 11158 Location: NJ Joined: December 11, 2000	my stepdad was my woodshop teacher in HS and he would say practice makes perfect!

Sausage making, posted on May 23, 2024 at 16:03:31

emailtim
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Here are some more picts of the sausage making.

Made a glue-up clamping form that doubled as a routing form.

Routed 2.25" down from both top and bottom ends which gave me a reference surface.

The router bit left the middle section proud.

Used a flush trim table saw router fence (flushed against the top and bottom reference surfaces) to shave off the proud center band.

Final step was some light sanding.

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RE: lotta work and looks really nice, posted on May 23, 2024 at 16:30:28

emailtim
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I took shop in jr high and doubt they would be able to teach those classes today. Shop had drafting first, then metals, plastics and wood.

Had to take a test before doing the plastics so the kids did not screw up the machines. There was vacuum molding (magnetic signs), rotisserie molding (footballs with air valves), injection molding (golf tees) and compression molding (hard plastics like ash trays).

Metals included sheet metal, riveting, soldering using old fashioned soldering irons that were heated in open gas fired furnaces and sand casting with molten aluminum.

We made screw drivers by threading and shaping tool steel, heating it up and melting it into plastic handle stock and that was shaped on a lathe.

We had the choice of wood projects. We all had to make shelves first with a scroll saw before picking other projects. I made a folding chess board out of maple and walnut.

Today, kids would burn the place down and brand each other.
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RE: lotta work and looks really nice, posted on May 23, 2024 at 18:07:26

Story
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Posts: 11158
Location: NJ
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LOL my first project was a small bookshelf also, after that I made large woofer cabinets

There was one kid who was always making a pot pipe and my stepdad would let him get close to finishing it and then sneak up and break it in half.

I remember going up the hallway one day to wood shop class and all of a sudden my step Dad was coming down the hall holding his bloody hand going to the nurses office.

There was a trail of blood all the way there and all over his shoes which were always polished brand new, Korean Vet. What a mess, even he screwed up once in a while.

RE: lotta work and looks really nice, posted on May 23, 2024 at 18:33:44

emailtim
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Joined: July 2, 2017

It was fun to watch how many scroll saw blades were broken to cut a few inches of pattern for the shelf sides. We also had to hand cut dados with a hand saw and hand chisels.

Yep, always have to be on the lookout. There is a new law that may make existing table saws illegal. They are trying to force all new TS to be made with the SawStop technology which may make it impossible to sell used saws without it. It drives up the price of the saw and also prevents cutting aluminum.

My brother took shop in HS. He was able to make full size, floor standing long and handgun rack out of solid oak. It was 2 pieces. A chest with a vertical glass door show cabinet on top. It was over 6' tall and @ 4' wide. Oak was cheap back then. It turned out nice. Was quite impressed with his work.

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RE: New sub cab builds, posted on May 24, 2024 at 06:43:58
Brad225 Audiophile Posts: 163 Location: Tampa Joined: December 25, 2006	For your first stave and spline attempt that is quite good Tim. With the right jigs and a carful approach you can do a lot of things on your table saw. Your shop class sounds very much like mine in the 60's. I would have happily traded English and History class for 2 extra hours of shop class.

RE: "Amazon" is some meth dealer in a white van. There is no "Amazon", posted on May 24, 2024 at 06:49:45
Brad225 Audiophile Posts: 163 Location: Tampa Joined: December 25, 2006	I agree Chip but, there is usually a need for the item delivery of the part now. Not a week later. When you find what you thought would work doesn't. Planning ahead would solve that issue but my world usually doesn't work that way.

RE: New sub cab builds, posted on May 24, 2024 at 08:14:13

emailtim
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Shop class was fun. 2 weeks out of the year, the girls and boys swapped classes. The girls spent 2 weeks in the shop (don't know what they did) and the guys spent 2 weeks in Home Ec trying to cook. There was some sorry looking pancakes and pizza dough from the guys that never used a stove before. =)

I used an online stave calculator to get the right ID and OD.

I then tried it with a miter gauge in 2D with 3/4" stock before trying to do it in 3D with a tilt blade and long bar stock.

It is more difficult to do in 3D keeping everything square with no tilt or taper.

Also bought a relative zeroing Klein digital angle finder on sale that is supposed to be accurate to +/-0.2 degrees. Did test cuts to compare against the miter gauge.

Should have bought one of those a long time ago.

Learned a few things to improve upon next time.

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RE: New sub cab builds, posted on May 24, 2024 at 12:33:22
Brad225 Audiophile Posts: 163 Location: Tampa Joined: December 25, 2006	Funny you mention that. I remember being in Home Ec for a short time but I don't think it was related to shop. What part of the country were you in then? I was in Michigan at that time. Clearly every project makes for a new learning experience. Not sure I always remembered them when came around again.

RE: New sub cab builds, posted on May 24, 2024 at 12:56:18
emailtim Audiophile Posts: 6090 Joined: July 2, 2017	Wisconsin. Just did a search, the school was built in 1927 and demoed in 1999. It was 3 stories and a full basement. Shop and other classes were in the basement. Gym floor was in the basement with a running track above on the 1st floor. . 2022/03/30 Historical Records CENSORED

Subs are thump'in, posted on June 19, 2024 at 23:32:45

emailtim
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Here is a listening position THD plot from the other evening.

Subs are crossed over at 60Hz with a 6dB/octave OB/Dipole rolloff compensation low shelf filter.

F3 is 15 Hz.

Here are both channels sweeped together from the listening position.

Been experimenting with new room treatments. -24dB down in 8.7ms.

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Tweakers' Asylum

New sub cab builds

23.242.178.78