chyc Posted July 28 Share Posted July 28 This looks fab. Thanks for the design. I want to make this. One aspect of building these that I struggle with is cutting for the port. I spend ages on cutting a round hole, only to find it's not a great fit etc. How would I go about swapping out the drain pipe for something a little (IMO) nice looking and easier to work with such as this Tuff Cab Port Tube? I presume it's a trip to WinISD, but if someone has the dimensions to hand to see if it's a goer, I would be eternally grateful 🙂. 2 Quote Link to comment Share on other sites More sharing options...
tauzero Posted July 29 Share Posted July 29 You can get hole saws the right diameter, eg https://www.ebay.co.uk/itm/355897211872. Easy to use, just make sure that you've got the wood suspended otherwise you'll put a hole in your workbench. Gives a snug fit, just put some epoxy glue round it to secure it. 2 Quote Link to comment Share on other sites More sharing options...
Phil Starr Posted July 29 Author Share Posted July 29 8 hours ago, chyc said: This looks fab. Thanks for the design. I want to make this. One aspect of building these that I struggle with is cutting for the port. I spend ages on cutting a round hole, only to find it's not a great fit etc. How would I go about swapping out the drain pipe for something a little (IMO) nice looking and easier to work with such as this Tuff Cab Port Tube? I presume it's a trip to WinISD, but if someone has the dimensions to hand to see if it's a goer, I would be eternally grateful 🙂. As a serial builder you'll know the joy of self building is that you can adapt the design. I stick with drainpipe because it is going to remain available for a very long time and because as @tauzero says you can buy a cheap holesaw to cut the port. Cutting small holes is much trickier than cutting the larger radius holes if you are using a router or a jigsaw so the holesaw with just a drill is the 'easy build' solution. A bigger port would be nice with this cab but a 10cm port just won't fit, I did consider a slot port but it increases the complexity of the woodwork. As it happens a 75mm port is in the Goldilocks region for this cab and I'd already calculated for it 12.5cm is the length that port is just too short but changing the tuning by using it as it is wouldn't change the response by much. I wouln't be concerned if you used the port as it is and you could add the extra length by finding something to slide over the end of the tube if you care to improvise. I've a small stock of cardboard packing tubes I keep for this but I've seen people use tin cans and all sorts. I've also moulded whole ports out of papier-mache. 2 Quote Link to comment Share on other sites More sharing options...
chyc Posted July 29 Share Posted July 29 (edited) Thanks for that, both @tauzero and @Phil Starr. I probably should say some things for the defence of the lazy while I'm here: I do have a hole saw. It cuts very nice and precise holes. Unfortunately it's horrible to work with with a hand drill and, more importantly, drainpipes are not made to a precision that makes for a nice fit anyway. I was sanding down my hole to make it fit (pipe down Kenneth Williams). Unless you're building more than a couple of boxes, or unless you have spare drainpipe, buying a dedicated port tube will be cheaper. Edited July 29 by chyc Quote Link to comment Share on other sites More sharing options...
Chienmortbb Posted July 29 Share Posted July 29 8 hours ago, tauzero said: You can get hole saws the right diameter, eg https://www.ebay.co.uk/itm/355897211872. Easy to use, just make sure that you've got the wood suspended otherwise you'll put a hole in your workbench. Gives a snug fit, just put some epoxy glue round it to secure it. Just a small tip, it the hole is a tad tight when fitting the port, put the port in the freezer overnight. The temperature coefficient of the PVC mean the port will shrink but gradually expand into the hole as it warms. 5 Quote Link to comment Share on other sites More sharing options...
Chienmortbb Posted July 29 Share Posted July 29 1 hour ago, chyc said: more importantly, drainpipes are not made to a precision that makes for a nice fit anyway. Try not to drill the hole too large and if it is hard to get the port in, freeze the port overnight. Quote Link to comment Share on other sites More sharing options...
3below Posted July 29 Share Posted July 29 4 hours ago, Chienmortbb said: Try not to drill the hole too large and if it is hard to get the port in, freeze the port overnight. ^ This, plus cut small and open the hole out with small incremental adjustments (rasp, half round file). If you do go way too big, epoxy plus sawdust makes a useful filler. My weapon of choice is a router plus adjustable bar. Perfect holes every time (my fingers were crossed as I wrote that). 🫰 1 Quote Link to comment Share on other sites More sharing options...
JohnDaBass Posted July 29 Share Posted July 29 5 hours ago, 3below said: . Perfect holes every time (my fingers were crossed as I wrote that). 🫰 Great to hear that you've still got all your fingers to cross 🤣 1 2 Quote Link to comment Share on other sites More sharing options...
Phil Starr Posted July 30 Author Share Posted July 30 Possibly because I build more prototypes than finished cabs I deliberately cut my holes slightly loose and use a gasket to seal them (gaffer tape usually) Once I have a finished size I seal it with whatever sealant is in my mastic gun. So far nothing has ever moved but a tight fit would be better. I'm saying this because I want people to know that there is always a solution and it makes it easier to start a build knowing any minor errors are soon sorted 3 Quote Link to comment Share on other sites More sharing options...
bremen Posted July 30 Share Posted July 30 I got one of these: https://www.ebay.co.uk/itm/364786830824?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=k2lumud2szy&sssrc=4429486&ssuid=hNc7PDPYRJi&var=&widget_ver=artemis&media=COPY and made a bar to rotate the tool round a bolt in the centre. It's easier to manipulate than a grown-up router. 3 Quote Link to comment Share on other sites More sharing options...
Pea Turgh Posted July 30 Share Posted July 30 I cut my port hole with a jigsaw, very very slowly. The port is friction fit. I was surprised, but seems it is possible. Quote Link to comment Share on other sites More sharing options...
stevie Posted July 30 Share Posted July 30 1 hour ago, bremen said: I got one of these: https://www.ebay.co.uk/itm/364786830824?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=k2lumud2szy&sssrc=4429486&ssuid=hNc7PDPYRJi&var=&widget_ver=artemis&media=COPY and made a bar to rotate the tool round a bolt in the centre. It's easier to manipulate than a grown-up router. I bought one of those as a backup because the price was just ridiculous. It works fine, except that you can't use it for rebates because the depth setting doesn't lock properly. It's fine for trimming and cutting holes. And, as you say, it's much easier to use that a full-size router. Quote Link to comment Share on other sites More sharing options...
FirstBass Posted July 30 Share Posted July 30 Still using mine on a regular basis Great little monitoring / practice cab. 4 Quote Link to comment Share on other sites More sharing options...
nekomatic Posted August 19 Share Posted August 19 Cool to see the plans ready, thanks to Phil, Bert and Sam for making it happen. I plan to build one as soon as I’ve got a couple of other projects off the books (so don’t hold your breath). I vaguely remember a video in which Phil demonstrated how to assemble a speaker cabinet without having to use a million sash clamps. I assume this cab can be built the same way? Can anyone take pity on my search incompetence and remind me where to find it? Quote Link to comment Share on other sites More sharing options...
tauzero Posted August 19 Share Posted August 19 Possibly this: 2 2 Quote Link to comment Share on other sites More sharing options...
Chienmortbb Posted August 19 Share Posted August 19 1 hour ago, nekomatic said: Cool to see the plans ready, thanks to Phil, Bert and Sam for making it happen. I plan to build one as soon as I’ve got a couple of other projects off the books (so don’t hold your breath). I vaguely remember a video in which Phil demonstrated how to assemble a speaker cabinet without having to use a million sash clamps. I assume this cab can be built the same way? Can anyone take pity on my search incompetence and remind me where to find it? It is designed that way. If you look at the drawings, there are battens listed. Quote Link to comment Share on other sites More sharing options...
nekomatic Posted August 20 Share Posted August 20 11 hours ago, tauzero said: Possibly this: That’s the bunny - thank you! 10 hours ago, Chienmortbb said: It is designed that way. If you look at the drawings, there are battens listed. I should clarify that my search incompetence is rivalled by my woodworking incompetence*, so knowing that there are battens doesn’t equal fully understanding how to most easily assemble the thing. * exaggeration for comic effect, but only a bit 1 Quote Link to comment Share on other sites More sharing options...
tauzero Posted August 20 Share Posted August 20 3 hours ago, nekomatic said: I should clarify that my search incompetence is rivalled by my woodworking incompetence*, so knowing that there are battens doesn’t equal fully understanding how to most easily assemble the thing. * exaggeration for comic effect, but only a bit Phil's video does give thorough guidance on the assembly. 1 Quote Link to comment Share on other sites More sharing options...
Stub Mandrel Posted October 13 Share Posted October 13 Thanks to @Phil Starr for today's demo. It must have sparked a lot of interest as it seems to have triggered Blue Aran's dynamic pricing... 1 Quote Link to comment Share on other sites More sharing options...
Chienmortbb Posted October 14 Share Posted October 14 The video of the cab build is uploading as I type. I will post the link this afternoon. 3 Quote Link to comment Share on other sites More sharing options...
Chienmortbb Posted October 14 Share Posted October 14 OK it is up, no editing just the raw footage as it happened. 8 1 Quote Link to comment Share on other sites More sharing options...
Phil Starr Posted October 15 Author Share Posted October 15 Thanks John, though I don't think anyone wants to live through that again I think we need a bass filter though, the bass is definitely too far forward in the mix 🤣🎵😂 4 Quote Link to comment Share on other sites More sharing options...
Richard R Posted October 15 Share Posted October 15 12 hours ago, Phil Starr said: Thanks John, though I don't think anyone wants to live through that again But those of us who missed it can now experience some of the warm thrill of confusion, that space cadet glow. Thanks both. 4 Quote Link to comment Share on other sites More sharing options...
Chienmortbb Posted October 16 Share Posted October 16 On 15/10/2024 at 07:15, Phil Starr said: Thanks John, though I don't think anyone wants to live through that again I think we need a bass filter though, the bass is definitely too far forward in the mix 🤣🎵😂 Yes we know that the room is very boomy. Quote Link to comment Share on other sites More sharing options...
Phil Starr Posted October 16 Author Share Posted October 16 58 minutes ago, Chienmortbb said: Yes we know that the room is very boomy. I was thinking that the random bass playing from the hall was louder than I was for some of the time 1 1 Quote Link to comment Share on other sites More sharing options...
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