I'm working on my first amp and while drilling the 3/8" hole for the amp knob (and one for the effects knob) I split my lid!

I can fix this with glue and clamps, but I'm wondering if this was common and how to prevent it. I know one mistake was drilling the lid just supported by the box, I should have opened it and supported with a junk wood underneath. I was also using a spade bit, not a round one. (I was also having trouble getting the center one to bite so I was pressing down a bit.)

Just bad technique here?

Views: 516

Reply to This

Replies to This Discussion

The lid is obviously old and brittle, even if the bit was the biggest contributor to it's demise, after repairing it, hang it as a memento, piece of art, make a new lid from scratch add whatever design you wish. Just a suggestion, even after repair, it may not hold up well to other work on it, or use after the fact with string tension etc.

This is for the amp, not a guitar, so there shouldn't be any tension... 

Still need to drill more holes, but I think I just might not drill through the crack. The knobs can go anywhere. Maybe I'll just put a hubris-bolt in the hole that caused the split...

Yeah, mostly technique I'm afraid.  Fear not, I'm sure you can salvage the lid, but once you get it back together, absolutely use a backing board and a sharp bit, go light on the pressure, can't wait to see pictures of your end result!

Hole saws also work better than spade bits, again as long as you have some scrap underneath to support it.

I had just cut a 3" hole with a hole saw and it went fine! The good news is I got my father-in-law's forstner bits this weekend.

The forstner bits will make a nice clean hole.  Use a backup board, don't spin the bits too fast, and take your time.

Drilled my first holes today, not on this amp, but on a maple headstock. Sweet bits!

RSS

The Essential Pages

New to Cigar Box Nation? How to Play Cigar Box GuitarsFree Plans & How to Build Cigar Box GuitarsCigar Box Guitar Building Basics

Site Sponsor

Recommended Links & Resources


Forum

crossover guitar.

Started by Timothy Hunter in Other stuff - off topic, fun stuff, whatever. Last reply by Timothy Hunter on Wednesday. 14 Replies

Tune up songs

Started by Ghostbuttons in Building Secrets, Tips, Advice, Discussion. Last reply by Timothy Hunter Mar 9. 5 Replies

Duel output jacks

Started by Justin Stanchfield in Building Secrets, Tips, Advice, Discussion. Last reply by Taffy Evans Mar 8. 6 Replies

How to Get Your Own Music on Spotify

Started by Cigar Box Nation in Feature Articles. Last reply by Southern Ray Feb 21. 2 Replies

Latest Activity

Matthias Bichsel left a comment for Moritz Voegeli
"www.cbguitars.ch auf FB This Bichsel"
13 hours ago
Matthias Bichsel left a comment for Moritz Voegeli
"Hallo, ich bin aus Solothurn. Lisa Stearns hat mich gefragt ob ich Dich kenne. Ich baue cbg. Gruss…"
13 hours ago
Matthias Bichsel liked Moritz Voegeli's profile
13 hours ago
BrianQ. left a comment for John Herrick
14 hours ago
BrianQ. left a comment for Daniel Cook
14 hours ago
BrianQ. left a comment for Skip Novakovich
14 hours ago
T-Gripped liked David Woodman 's photo
14 hours ago
Profile IconJohn Herrick, Daniel Cook and Skip Novakovich joined Cigar Box Nation
15 hours ago
A.D.EKER commented on A.D.EKER's video
Thumbnail

The Blues riff a Tutorial BCB 2024

"Yup Doug ! standart tuning for the four that el be missing the E's ADGB ,on the 3 Tree String…"
17 hours ago
Max commented on Max's video
Thumbnail

My second guitar

"Thanks everyone, yes well and truly hooked haha. If I ever put this one down it's to make…"
yesterday
Southern Ray replied to Moritz Voegeli's discussion Joseph J. Rogowski about Current Based Pickup Design
" A few years later... Thank you."
yesterday
Doug Thorsvik commented on Doug Thorsvik's video
Thumbnail

Jesus Thank You: 3D Printed Cigar Box Guitar

"Monday was Faith Night; today was Faith Afternoon at the church (a 90 minute jam with some…"
yesterday

Music

© 2024   Created by Ben "C. B. Gitty" Baker.   Powered by

Badges  |  Report an Issue  |  Terms of Service

\uastyle>\ud/** Scrollup **/\ud.scrollup {\ud background: url("https://storage.ning.com/topology/rest/1.0/file/get/963882636?profile=original") no-repeat scroll 0 0 transparent;\ud bottom: 25px;\ud display: inline !important;\ud height: 40px;\ud opacity: 0.3 !important;\ud position: fixed;\ud right: 30px;\ud text-indent: -9999px;\ud width: 40px;\ud z-index: 999;\ud}\ud.scrollup:hover {\ud opacity:0.99!important;\ud}\ud \uascript type="text/javascript">\ud x$(document).ready(function(){\ud x$(window).scroll(function(){\ud if (x$(this).scrollTop() > 100) {\ud x$('.scrollup').fadeIn();\ud } else {\ud x$('.scrollup').fadeOut();\ud }\ud });\ud x$('.scrollup').click(function(){\ud x$("html, body").animate({ scrollTop: 0 }, 600);\ud return false;\ud });\ud });\ud \ua!-- End Scroll Up -->