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Forums :: Ask Harp Tech Expert Kinya Pollard

Replacing reed

4 replies [Last post]
Tue, 09/01/2020 - 14:22
James Micarelli
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Joined: 04/03/2014

Hello Master Kinya.  If you had me on the short list for amateur brain surgery please remove my name.  When I forge weld in the blacksmith shop, if the welding gods are not with me nothing welds so I usually quit for a while and go weed the garden... Well, the harmonica gods were not with me when I tried to replace my first reed (Key of A draw 5).  I purchased the appropriate  tools, reviewed the "Master" again and went to work with complete confidence until I tightened the bolt a wee too much and stripped the screw.  Confidence went down several notches.  I don't have a larger tap or larger bolts (Is that the way to go and what size?) so I used a blacksmithing tech and set the bolt as I would a 1/4" steel rivet with marginal sucess.  So then I figured let me tune the reed.  I forgot to set the tuner at 442, I got confused as to which end to work on. (I now know which end and why) and ended up having a harp that playes a C# blow and a C# draw.  I should have done some weeding As the old joke punchline states, "Can you fix it?.  I assume I can start to increase the pitch to a "D" by removing metal at the free end but I would like the hear the "masters" words of wisdom first.  Damn, and I'm taking my Technician's Amateur Radio License in a week.  Hope that goes better then my first reed replacement project.  This is my practice harmonica.....good thing.  Mic 

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Tue, 09/01/2020 - 15:37
#1
Harp Tech Kinya...
Harp Tech Kinya Pollard's picture
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Joined: 02/07/2010
Hey Mic, I've always enjoyed

Hey Mic, I've always enjoyed metal work more than wood work, because you could always use a bigger and heavier hammer ;o)

First of all, I'm really pleased you made these "ba-boos" on your practice harmonica. Secondly, you got those mistakes out of your system--so next time, I doubt you will fall into the same rabbit hole.

In the event, another 0-80 machine screw breaks off inside your reed plate:

  1. use a sharp center punch and mark (divot) the center of the broken machine screw
  2. select a drill bit that will match the O.D. of the machine screw (1/16" or #52)
  3. chuck the bit into your drill press
  4. lay the "non rivet head" side of the reed plate onto a flat piece of scrap wood (hardwood best)
  5. run your drill bit completely through the broken machine screw 
  6. you will now have a clearance hole prepared for the next step, which you will learn by reviewing this past Forum: https://www.bluesharmonica.com/option_2_attaching_manji_reeds

As for the tuning, you may want to keep the 5 draw at C# (matching your 5 blow C#). This way you can amaze your audience with your sustained "circular breathing" technique!

After the laughing has subsided... your plan to remedy the issue is absolutely correct--removing weight from the free end of the reed will speed up the vibration and raise (sharpen) the C# pitch up to D. Stop at <-10 cents>.

As for the weeding, stay away from the Roundup spray, it could be dangerous to your health.

Your Harpsmith, Kinya

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Tue, 09/01/2020 - 16:51
#2
James Micarelli
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Joined: 04/03/2014
Yes, I'm still laughing.

Yes, I'm still laughing. Excellent forum reference.  I will be ordering hardware now.  Since we grow everything organically on the farm there is no worry about using Roundup.  I enjoy your humor and Masterful knowledge.  I will let you know how things turn out.  Thanks. Mic

 

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Wed, 09/02/2020 - 09:12
#3
Harp Tech Kinya...
Harp Tech Kinya Pollard's picture
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Joined: 02/07/2010
Sweet, the majority of fruits

Sweet, the majority of fruits and vegetables that my wife and I eat are (labeled) organic. Meats (grass fed) and poultry (free-range). Appears to be working 'cause my wife and I are 120 years old, but people say we don't look a day over 65.

Your Harpsmith, Kinya 

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Wed, 09/02/2020 - 11:59
#4
R3Dz
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Joined: 12/19/2018
lol this thread is gold ;P

lol this thread is gold ;P

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