1 00:00:00,160 --> 00:00:06,200 Martin: - I am so happy because this is my favorite music instrument of all, my guitar, 2 00:00:06,400 --> 00:00:10,320 and I have Carlos Montoro here from Anjuda Guitars. Carlos: - Hi. 3 00:00:10,580 --> 00:00:13,300 Martin: - A guitar luthier. You actually build guitars. Carlos: - Mhm. 4 00:00:13,300 --> 00:00:17,640 Martin: - Carlos is going to help me repair this guitar, because we have an issue over here. 5 00:00:17,640 --> 00:00:24,120 Apart from the guitar being really dusty, there's a crack here under the fretboard. 6 00:00:24,480 --> 00:00:26,760 So Carlos is shining from the backside of the guitar 7 00:00:26,760 --> 00:00:31,340 and you can see the light goes straight through under the fretboard here. 8 00:00:31,340 --> 00:00:33,540 Martin: - How does it look? Carlos: - Looks bad. 9 00:00:33,780 --> 00:00:35,160 Martin: - Bad? 10 00:00:35,460 --> 00:00:39,960 Carlos: - We need to close the gap. Martin: - And then this string? 11 00:00:40,840 --> 00:00:46,020 Martin: - Yeah, so if you open it? It goes on this fret when you open it, 12 00:00:46,020 --> 00:00:47,780 and when you close it, it goes on the nut. 13 00:00:47,840 --> 00:00:52,560 Carlos: - The string is forcing the neck of the guitar to go in this way. 14 00:00:52,560 --> 00:00:56,840 So we need a thin strip of sanding paper. 15 00:00:57,380 --> 00:00:59,380 Martin: - Oh, sweet. 16 00:00:59,380 --> 00:01:01,680 [background music] [♪ unreleased/Work ♪] 17 00:01:01,780 --> 00:01:09,140 Carlos: - Now looking at the dust I made, I can see this clear sand here is from the binding, 18 00:01:09,420 --> 00:01:14,980 and this more darker is from under the fretboard. You can see the colour matches. 19 00:01:15,040 --> 00:01:21,040 Now hopefully we don't lose the lacquer. Martin: - Aw, doesn't matter. It tells the story. 20 00:01:21,100 --> 00:01:23,816 Carlos: - I always say that to my clients. 21 00:01:23,820 --> 00:01:28,800 "I got a ding in my guitar!" - Oh, come on, let the guitar tell the story. 22 00:01:28,820 --> 00:01:31,160 Carlos: - Let the... let the time break your guitar. 23 00:01:31,160 --> 00:01:33,500 Martin: - Ah, so they want you to just make it look old? 24 00:01:33,500 --> 00:01:34,600 Carlos: - Yeah. Martin: - Huh. 25 00:01:34,600 --> 00:01:37,040 Carlos: - Exactly. Martin: - Oh, that's cheating. 26 00:01:37,820 --> 00:01:39,480 Carlos: - Exactly. 27 00:01:48,360 --> 00:01:51,040 Martin: - Just what the doctor ordered. 28 00:01:51,280 --> 00:01:55,780 [music in foreground] 29 00:02:08,880 --> 00:02:12,760 Martin: - So Carlos explained to me that he wanna make a special clamping technique. 30 00:02:12,760 --> 00:02:13,700 Carlos: - Mhm. 31 00:02:13,700 --> 00:02:16,920 Martin: - That we don't want to clamp the fretboard down to the neck, 32 00:02:16,920 --> 00:02:21,960 but you want to clamp the neck up to the fretboard, to not bend the fretboard. 33 00:02:22,180 --> 00:02:29,040 Carlos: - Correct. So this way hopefully, with the zip ties, we will get that. 34 00:02:30,160 --> 00:02:32,960 Martin: - So I asked Carlos: "Do you have enough glue in there?" 35 00:02:32,960 --> 00:02:35,300 And he was like, "the glue is supposed to spread", 36 00:02:35,300 --> 00:02:38,080 and now it's spreading evenly everywhere. 37 00:02:38,080 --> 00:02:41,560 So I'm always using way too much glue on everything. 38 00:02:41,700 --> 00:02:44,540 Carlos: - And you know what? We can't go with too much glue 39 00:02:44,540 --> 00:02:47,060 because the truss rod is just in the middle of the neck. 40 00:02:47,060 --> 00:02:47,760 Martin: - Okay. 41 00:02:47,760 --> 00:02:52,480 Carlos: - So we need the truss rod to keep moving so the guitar can be adjustable. 42 00:02:52,680 --> 00:02:54,740 Carlos: - I feel good about this. 43 00:02:54,980 --> 00:02:59,460 So now that we have the glue setting and drying, 44 00:02:59,460 --> 00:03:04,080 we are going to move the truss rod, often. 45 00:03:05,140 --> 00:03:11,520 And hopefully, the truss rod will not be glued with the fretboard and the neck. 46 00:03:11,520 --> 00:03:16,440 Martin: - Yeah, so the truss rod is like a long bolt that goes through the whole neck of the guitar. 47 00:03:16,440 --> 00:03:18,440 It goes all the way down here? Carlos: - Mhm. 48 00:03:18,480 --> 00:03:21,300 Martin: - And it can adjust the tension of the neck. 49 00:03:21,300 --> 00:03:23,340 So often when you repair your guitar, 50 00:03:23,420 --> 00:03:25,320 you always check the truss rod. 51 00:03:25,320 --> 00:03:29,970 Carlos: - You always check the truss rod, always, and you adjust the truss rod always. 52 00:03:29,970 --> 00:03:35,980 Carlos: - So this is a truss rod. There are several types but they all work more or less the same. 53 00:03:36,080 --> 00:03:39,340 As you can see, this is a neck, work in progress. 54 00:03:39,340 --> 00:03:44,120 This is just rough cut and here is a slot in the wood. 55 00:03:44,220 --> 00:03:51,720 So pretty easy to place the truss rod in the slot and then glue the fretboard on top of it. 56 00:03:51,840 --> 00:03:58,420 All the truss rods have some way to actuate them. In this case it's with this four millimeters allen key. 57 00:03:58,500 --> 00:04:05,840 So you insert it, turn it clockwise, and, as you can see, a bow is generated in the truss rod. 58 00:04:06,440 --> 00:04:10,520 So when the fretboard is in place, all the neck is forced to bow as well. 59 00:04:10,820 --> 00:04:14,600 Carlos: - Do you know, how do we call the truss rod in Spanish? 60 00:04:14,600 --> 00:04:15,620 Martin: - No. Carlos: - The soul. 61 00:04:15,620 --> 00:04:16,740 Martin: - The soul? 62 00:04:16,740 --> 00:04:18,940 Carlos: - The soul. Martin: - Wow, that's beautiful. 63 00:04:19,140 --> 00:04:21,780 Carlos: - Yeah, it's the perfect name for that, 64 00:04:21,780 --> 00:04:26,080 because indeed it's something that is hidden in between, 65 00:04:26,160 --> 00:04:30,900 and when the truss rod is not workable, you don't have guitar at all. 66 00:04:30,900 --> 00:04:32,520 It's like, dead guitar. 67 00:04:32,520 --> 00:04:35,420 Martin: - Happening with no soul. Carlos: - No soul. 68 00:04:35,600 --> 00:04:40,480 Martin: - But Carlos, it doesn't sound so good. Carlos: - Oh, it takes time. 69 00:04:40,780 --> 00:04:42,920 Martin: - The glue needs to dry first? 70 00:04:42,920 --> 00:04:46,260 Carlos: - How long hasn't you used making the MMX? 71 00:04:46,280 --> 00:04:49,200 Martin: - Don't rub it in! 72 00:04:49,200 --> 00:04:52,220 [playing a riff on muffled and detuned guitar] 73 00:04:54,580 --> 00:05:01,480 Carlos: - You know you are in front of a musician when they can do music with just anything. 74 00:05:02,400 --> 00:05:05,800 Martin: - Do you call it music? Carlos: - It can be. 75 00:05:06,280 --> 00:05:11,220 We let this dry for today, so I think it's time to untie it. 76 00:05:11,300 --> 00:05:14,160 Martin: - During these days, I got to know Carlos better, 77 00:05:14,160 --> 00:05:17,380 and Carlos told me that when you meet a customer, 78 00:05:17,600 --> 00:05:22,560 you focus more on the relationship between the customer and the customer's guitar, 79 00:05:22,580 --> 00:05:24,120 than the guitar itself. 80 00:05:24,120 --> 00:05:28,760 Carlos: - Yeah, you're a musician and you know that musicians can get very close to their instruments, 81 00:05:28,980 --> 00:05:35,340 and they feel like very personal for them. For them is like to go to the doctor. 82 00:05:35,340 --> 00:05:36,220 Martin: - Yeah. 83 00:05:36,340 --> 00:05:39,940 Carlos: - You know, do you have your doctor that you are confident with? 84 00:05:39,940 --> 00:05:41,660 Martin: - Yeah. Carlos: - It's the same with luthiers. 85 00:05:41,660 --> 00:05:46,560 Martin: - Yeah. Even if it's a cheap, kind of bad guitar, 86 00:05:46,560 --> 00:05:52,300 you treat it with the same respect as if it's a vintage hundred year old guitar, 87 00:05:52,300 --> 00:05:56,740 because of the emotions that the customer has for his instrument. 88 00:05:57,120 --> 00:06:01,552 Carlos: - The price is not of the instrument. It's not in the money. 89 00:06:01,552 --> 00:06:04,420 It's in the customer's relationship with it. 90 00:06:04,540 --> 00:06:08,940 Martin: - That's beautiful. It's exactly how I feel with this guitar, 91 00:06:08,940 --> 00:06:14,340 because now when I see it on the operating table, I realize how much it means to me, 92 00:06:14,440 --> 00:06:16,880 and that I've been taking it for granted, 93 00:06:16,880 --> 00:06:20,840 and putting it just against walls and letting it fall. 94 00:06:21,200 --> 00:06:23,500 [testing strings with clear tone] 95 00:06:23,600 --> 00:06:26,720 Carlos: - Yeah. It seems we did it. 96 00:06:27,480 --> 00:06:31,100 Now it's time to give love to this thing. Martin: - Okay. 97 00:06:31,340 --> 00:06:34,260 Carlos: - Before the love, there's always the fight. 98 00:06:37,000 --> 00:06:42,020 [music in foreground] [♪ unreleased/Helping Out ♪] 99 00:06:50,240 --> 00:06:52,420 Carlos: - Secret formula. 100 00:06:52,820 --> 00:06:54,800 - Mhm. 101 00:06:58,780 --> 00:07:01,280 Martin: - Mhm, oh my... 102 00:07:02,820 --> 00:07:05,220 Carlos: - Alright, isn't it? Martin: - Oh wow. 103 00:07:09,480 --> 00:07:12,460 Martin: - I didn't know it was black. [laughs] 104 00:07:15,160 --> 00:07:17,240 [music fades] 105 00:07:17,280 --> 00:07:22,620 Martin: - I mean, who does this to his guitar, when you can just buy a strap lock? 106 00:07:22,620 --> 00:07:24,620 [chuckles] 107 00:07:25,600 --> 00:07:27,820 [strums guitar strings] Martin: - Check out this guitar! 108 00:07:27,820 --> 00:07:31,980 Carlos built this beauty. It has a bookmatched... maple? 109 00:07:32,000 --> 00:07:34,480 Carlos: - Maple, yeah. Martin: - Why is it so cool? 110 00:07:34,660 --> 00:07:40,980 Carlos: - Because this is actually the figurine of the wood itself. 111 00:07:41,080 --> 00:07:46,040 Martin: - It looks like a blue tiger. Carlos: - Yeah, it's called flame maple actually. 112 00:07:46,160 --> 00:07:52,520 [guitar music] [♪ unreleased/Jamming with Carlos ♪] 113 00:08:23,720 --> 00:08:25,580 [ends with pronounced bass note] [laughing] 114 00:08:25,640 --> 00:08:27,860 Martin: - I love it, it's nice! 115 00:08:29,640 --> 00:08:34,440 Martin: - I can't believe, you... you built something like this. 116 00:08:34,440 --> 00:08:36,080 Carlos: - You tell me? 117 00:08:36,840 --> 00:08:38,660 Martin: - Ah, yeah. 118 00:08:39,420 --> 00:08:43,120 Martin: - Ok, should I try if the guitar is finished? 119 00:08:43,120 --> 00:08:45,040 [strums chords] 120 00:08:45,040 --> 00:08:46,740 Oh wow, new strings! 121 00:08:46,940 --> 00:08:48,240 Honey, I'm home! 122 00:08:49,240 --> 00:08:50,240 Ooooh! 123 00:08:50,460 --> 00:08:57,800 Carlos: - I didn't make any adjustment, but I think it is good as it is, like this. 124 00:08:59,640 --> 00:09:02,920 [Martin playing a blues line] 125 00:09:06,440 --> 00:09:08,380 Martin: - It's so beautiful! 126 00:09:08,980 --> 00:09:12,100 [playing rhythmical chords] 127 00:09:12,320 --> 00:09:14,680 I can only play bossa nova, apparently. 128 00:09:14,680 --> 00:09:16,680 [laughing] [jamming ends] 129 00:09:16,680 --> 00:09:17,860 [background music] [♪ unreleased/Helping Out ♪] 130 00:09:17,860 --> 00:09:22,440 Martin: - Ok, so Carlos is now adjusting the bolt that goes through the whole neck 131 00:09:22,440 --> 00:09:25,100 and you're going to go to an extreme position? Carlos: - Mhm. 132 00:09:25,100 --> 00:09:27,440 Martin: - ...where the strings are too low? Carlos: - Too low. 133 00:09:27,440 --> 00:09:29,820 Martin: - and then we go up until it's playable. Carlos: - Yeah. 134 00:09:29,820 --> 00:09:30,800 Martin: - Ok. 135 00:09:30,920 --> 00:09:34,540 Carlos: - So, we are going to check the straightened of the neck. 136 00:09:34,740 --> 00:09:36,800 Martin: - And how does it look now? 137 00:09:37,040 --> 00:09:39,840 Carlos: - This, it look a little bit bad. Martin: - Ok. 138 00:09:39,840 --> 00:09:43,240 Carlos: - So it seems that we can straighten the neck a little bit. 139 00:09:43,240 --> 00:09:46,540 Martin: - Ok. So now you're going clockwise 140 00:09:46,540 --> 00:09:50,520 to get the ramp to force the neck down towards the table here. 141 00:09:50,600 --> 00:09:52,820 Carlos: - Mhm. Martin: - So bend like that. 142 00:09:53,640 --> 00:09:58,740 Carlos: - So, you know that you have gone too far with the truss rod tightening 143 00:09:59,000 --> 00:10:02,620 when it starts to buzz on the first frets. 144 00:10:02,620 --> 00:10:05,140 [guitar makes buzzing sounds] 145 00:10:08,440 --> 00:10:09,700 Not good. 146 00:10:09,760 --> 00:10:13,120 Martin: - Okay, so then you have to give more relief? Carlos: - Yeah. 147 00:10:13,120 --> 00:10:16,829 Martin: - So it's a compromise between easy to play and no buzz. 148 00:10:16,829 --> 00:10:18,520 Carlos: - Yeah, exactly. 149 00:10:18,520 --> 00:10:20,520 [much less buzzing] 150 00:10:20,560 --> 00:10:25,640 Still a little bit of buzz, but it is something that some players can handle good. 151 00:10:25,760 --> 00:10:27,360 Martin: - Can I try? 152 00:10:27,580 --> 00:10:31,420 Martin: - Does it work for bossa nova? Carlos: - Yeah, smoothly. 153 00:10:31,660 --> 00:10:34,120 [jamming] 154 00:10:34,320 --> 00:10:35,900 Martin: - This feels better. 155 00:10:42,940 --> 00:10:44,680 Carlos: - You see the buzz there? 156 00:10:44,680 --> 00:10:47,300 Martin: - It's only on that note actually. Carlos: - Yeah. 157 00:10:49,360 --> 00:10:51,820 Martin: - I don't like F anyway. 158 00:10:51,940 --> 00:10:55,400 Can we make a tiny adjustment to higher, 159 00:10:55,400 --> 00:10:59,700 because this is very, very easy to play? It feels very good though. 160 00:10:59,700 --> 00:11:03,240 Carlos: - I'd say that we should loosen a little bit more. 161 00:11:03,480 --> 00:11:05,840 Martin: - Yes. Here we go. 162 00:11:10,160 --> 00:11:11,120 Yes. 163 00:11:13,220 --> 00:11:16,660 Carlos: - When you have this set up, in guitars, 164 00:11:16,660 --> 00:11:23,540 and then it's... at that point is when it's important to check out the guitar in winter and in summer, 165 00:11:23,540 --> 00:11:25,940 because now it will be affected by the weather. 166 00:11:26,060 --> 00:11:29,620 Martin: - Ok. Because it's so tight. Carlos: - Because it's so tight. 167 00:11:29,820 --> 00:11:33,460 Martin: - But how can I learn to play something else than bossa nova? 168 00:11:33,460 --> 00:11:35,660 Can you solve that for me? Carlos: - You tell me! 169 00:11:36,080 --> 00:11:39,449 Martin: - I actually asked Carlos... I want the strings lower, 170 00:11:39,449 --> 00:11:41,920 and I thought I was having to put this down. 171 00:11:41,920 --> 00:11:43,300 Carlos: - Yeah. Martin: - But you didn't touch this. 172 00:11:43,300 --> 00:11:48,340 Carlos: - Yeah, it's the first thing that people should suggest: to touch the bridge, 173 00:11:48,500 --> 00:11:53,160 and actually it's more important to touch the truss rod and have it in the right position 174 00:11:53,160 --> 00:11:56,260 and then you can go to the bridge if needed. 175 00:11:56,540 --> 00:11:59,668 Martin: - Carlos, an amazing experience 176 00:11:59,668 --> 00:12:04,300 seeing you work with my baby guitar. Thank you so much! 177 00:12:04,360 --> 00:12:07,980 Carlos: - Thank you! Thank you so much for bringing me here 178 00:12:07,980 --> 00:12:12,400 and work here with the bass and the MMX. It was just wonderful! 179 00:12:12,400 --> 00:12:19,840 Martin: - My pleasure. It's so fun to have expertise company in the workshop 180 00:12:19,860 --> 00:12:25,800 and as I've said a lot of times, I learn so much more seeing someone work in real life 181 00:12:26,060 --> 00:12:30,840 than just trying to find information on the internet. So, that's lovely. 182 00:12:30,900 --> 00:12:35,500 And, it feels like, I've been building for like three years, 183 00:12:35,860 --> 00:12:39,880 and a little bit this feels like a little start for my music again. 184 00:12:39,880 --> 00:12:41,560 So it means very much to me. 185 00:12:41,560 --> 00:12:45,660 [intense music] [♪ unreleased/My Dream Snare Sound - Full ♪] 186 00:12:49,460 --> 00:12:52,940 These videos are brought to you by our backers 187 00:12:52,940 --> 00:12:55,300 through youtube channel memberships or Patreon. 188 00:12:55,340 --> 00:12:58,660 Thank you so much everyone who are supporting and thank you 189 00:12:58,660 --> 00:13:03,031 for believing in this crazy dream that is the Marble Machine X. 190 00:13:03,040 --> 00:13:05,860 Thank you so much for watching. See you on the next one! 191 00:13:05,860 --> 00:13:08,680 Martin: - You're not happy yet. You want to tweak it more. 192 00:13:08,740 --> 00:13:11,460 Carlos: - Yeah. Martin: - Ok. Love it!