Dave A Posted October 24, 2020 Share Posted October 24, 2020 Working on the first 2" throat wood mid horn today. This one is being cut for that yummy N314X Eminence driver and will be using the aluminum 1.4" to 2" adapter Eminence sells for mounting to the horn. I doubt this will be the last prototype but at least there is one to begin testing with. Hope to get the K-400 replacement cut next week. With the adapter this one is 7" deep with a tractix like shape. Oh no steps and very minimal finish sanding required here and it turned out pretty darned smooth. 6 Quote Link to comment Share on other sites More sharing options...
Dave A Posted October 24, 2020 Author Share Posted October 24, 2020 Lets try this picture as the first ones are not so hot. 1 Quote Link to comment Share on other sites More sharing options...
rockhound Posted October 24, 2020 Share Posted October 24, 2020 Oh yummy is right! looking great as expected! Really looking forward to the progression of this Dave. Quote Link to comment Share on other sites More sharing options...
OO1 Posted October 25, 2020 Share Posted October 25, 2020 , not sure if it's the picture and I understand this is not the K400 REPLACEMENT ---------but it looks deeper in length than any other elliptical horn , seen so far Quote Link to comment Share on other sites More sharing options...
windashine Posted October 25, 2020 Share Posted October 25, 2020 .. o O ( how much did the plywood core weigh, before cutting into it ? ) also, it'd be cool to see a picture from the inside looking out, into a large 5 acre field.... Quote Link to comment Share on other sites More sharing options...
Dave A Posted October 25, 2020 Author Share Posted October 25, 2020 50 minutes ago, RandyH000 said: , not sure if it's the picture and I understand this is not the K400 REPLACEMENT ---------but it looks deeper in length than any other elliptical horn , seen so far The overall depth is just a hair under 5" and it is the perspective that may be deceiving to you. 28 minutes ago, windashine said: .. o O ( how much did the plywood core weigh, before cutting into it ? ) also, it'd be cool to see a picture from the inside looking out, into a large 5 acre field.... The stack-o-wood was appx 12.83 pounds and for you I will see about a picture. Quote Link to comment Share on other sites More sharing options...
sootshe Posted October 25, 2020 Share Posted October 25, 2020 Very nice work. Is that cut from a solid piece or made up of individual segments? If it's segments, there sure are a lot of them. Quote Link to comment Share on other sites More sharing options...
carlthess40 Posted October 25, 2020 Share Posted October 25, 2020 DaveGreat work as always Question, what wood is best to use for a horn? Either a mid or high range horn.Are a soft wood like Cedar-wood or for a horn lens ? I live the smell and easy to carve Thanks and great workSent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Pete H Posted October 25, 2020 Share Posted October 25, 2020 Great to see this Dave! Will be following closely. Quote Link to comment Share on other sites More sharing options...
Dave A Posted October 25, 2020 Author Share Posted October 25, 2020 6 hours ago, sootshe said: Very nice work. Is that cut from a solid piece or made up of individual segments? If it's segments, there sure are a lot of them. 5 pieces of 25mm Baltic Birch stacked and glued. 5 hours ago, carlthess40 said: Dave Great work as always Question, what wood is best to use for a horn? Either a mid or high range horn. Are a soft wood like Cedar-wood or for a horn lens ? I live the smell and easy to carve Thanks and great work Sent from my iPhone using Tapatalk So far the best wood I have cut is Black Walnut though that can very a lot depending on northern or southern grown. Northern wood seems to be more dense and smoother cutting. Basically any dense hardwood with a small growth ring pattern will do fine though I believe. Soft woods would tend to tear more I think and really don't intend to try them anyway. The mill does not care how hard the wood is since it was designed to cut metal. 1 Quote Link to comment Share on other sites More sharing options...
carlthess40 Posted October 25, 2020 Share Posted October 25, 2020 Thanks Dave I only asked because I wanted to try with my lathe and make some round hornsBut I can only make them up to 10” roundThanks and keep them comingSent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Dave A Posted October 25, 2020 Author Share Posted October 25, 2020 50 minutes ago, carlthess40 said: Thanks Dave I only asked because I wanted to try with my lathe and make some round horns But I can only make them up to 10” round Thanks and keep them coming Sent from my iPhone using Tapatalk Here is something to think about then. I used the BB so I would not have to worry about cracks later. A solid chunk of wood would be nice but I have been warned they are prone to splitting. I do intend to make some out of hardwood but they will be done with 1" thick layers glued together to as to eliminate the splitting problem. What you do for yourself can be out of anything since if it does not work try again or if the finish is splintery you can take the time to sand. With a lathe and good SHARP tools you should be OK. Milling brings different problems to cutting than you will have to deal with. 3 Quote Link to comment Share on other sites More sharing options...
Marvel Posted October 25, 2020 Share Posted October 25, 2020 Very nice Dave... Will be nice not having to sand so much. I think the finishing labor kept a lot of people from getting Dave Harris' horns. How wide is the mouth on these? Do you have a calculated or estimated Fc? Bruce 1 Quote Link to comment Share on other sites More sharing options...
Panelhead Posted October 25, 2020 Share Posted October 25, 2020 Think these will keep your CNC running non-stop. A drop in K400 has thousands of potential customers. Quote Link to comment Share on other sites More sharing options...
Mr. Bissness Posted October 25, 2020 Share Posted October 25, 2020 I will require a set in Chattanooga please. These look awesome! Quote Link to comment Share on other sites More sharing options...
brians7 Posted October 25, 2020 Share Posted October 25, 2020 Dave. Now we need a replacement for the K500 Quote Link to comment Share on other sites More sharing options...
OO1 Posted October 26, 2020 Share Posted October 26, 2020 47 minutes ago, brians7 said: Dave. Now we need a replacement for the K500 and a K700 -k600--k400 Quote Link to comment Share on other sites More sharing options...
Panelhead Posted October 26, 2020 Share Posted October 26, 2020 You will be busier than Santa and his elves in December. Quote Link to comment Share on other sites More sharing options...
MookieStl Posted October 26, 2020 Share Posted October 26, 2020 52 minutes ago, brians7 said: Dave. Now we need a replacement for the K500 Might not need a 500. This one might fit into the Belle just fine. Just a guess, haven't measured Quote Link to comment Share on other sites More sharing options...
Fido Posted October 26, 2020 Share Posted October 26, 2020 This is exciting and add these to your Lmahl tweeters and these could be magical Quote Link to comment Share on other sites More sharing options...
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