www.StringRepair.com - Falling Down

DOUBLE BASS REPAIR

 REPAIR #8


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Falling Down...

When this nice basses owner fell down a flight of stairs...the bass was kind enough to take the hit in protection of it's owner.  The bass was in need of some attention in the bass bar area anyway, and the owner agreed that since so much was needed to repair the damage from the fall we might as well go all out and fully restore the whole thing.

All the old cleats and parchment patches were removed and the inside of the top, back and ribs were cleaned.  All of the old cracks were taken apart to be cleaned and re-glued, as well as all the new cracks needed to be addressed.  Diamond shaped spruce cleats were fit, as well as some eyebrow patches to reinforce the damaged ff hole wings.  For the top, neck and end-block doubling were needed to repair years of aggressive repairmen pulling off tops and a broken corner was replaced.

A new bass bar was in order, and serious deformation of the lower bout due to the weak old bar needed to be corrected.  The entire top underwent a plaster cast.  It took several months of daily attention to press the arching back into shape.  The area under the bass bar that was severely cracked received a large patch to both reinforce the crack and support the re-trained arching.

The neck was set significantly deeper into the new block to bring the string length from 45 inches to just under 43 inches.  Budget restraints did not allow for a neck graft which would have completely modernized the string length.

All of the new ebony accents were cut from the original board.  Some touchup and a complete setup capped off this 6 month restoration, and the owner is quite happy to be playing this monster double bass again!


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Serious top deformations... Again.  We will correct over the next few months with a plaster cast... Support pillars are spot glued in place to prevent the topfor distorting and/or collapsing under the weight of the plaster... Another view of the pillars... All framed in... Plastic will protect the top... Pouring of the plaster begins... and more plaster...over 100 lbs of dry plaster in all! the long curing process begins.  Hopefully all will be well under there! An eyebrow patch should strengthen this wing as it has been broken many times in the past... At least half of the original material hits the floor... The eyebrow patch ready to be glued...just waiting to make a plaster cast... Glueing in the eyebrow patch... Another view... Ribs off of the back... The ribs were removed to allow better access to graft a new button on. Can you see the new button in this blank? What we have to work with... All cleaned up... Fits like a glove... Glued in place... Top side... Part one done...now to carve away half of what I just created... Due to the many cracks, and the fact that the new button has no structural integrity, about half of the original thickness is carved away and a new piece of maple is inlayed... Chalk fit and ready to be glued in... Ready to be leveled and shaped... Carving away the old material to get ready for doubling...  The old wood was chipped away through the plate, so we had to fill it in and then re-level before the real doubling can begin... Weights applied to restore the deformed arching... Glueing in the last layer of neck plate doubling... Another view...     Hairline stress cracks starting on the E side cheek... Maybe a little flash will help to see it better... Tuners and finger board off...much lighter to work on! Polishing up the tuners... shinny and pretty! Jack planes the finger board... Sometimes every hand on deck is needed to meet deadlines... Eric makes some final adjustments... Note the restored arching...

Share your opinions on what this basses province might be!

View of the bench

The restoration is pictured in the chronological order in which we have been working, rather than re-sorting the pictures in an order to show the A-Z of each individual repair component of the restoration.   We have kept the photographs in this order so that you might get an idea of how we work.  Although we have a clear "map" of where we want to be, we find it works best to let the restoration "flow" and tackle the job in this artistic nature.

Upton Bass String Instrument Company © 2005