Friday, February 19, 2021

A Victorian Fretwork Archway turned Wall Hanging!


















 

Again, here is the original fretwork piece in my Mom's house.  It depicts the sun, wind, rain and snow.
All things from which a home protects you.
Here I am determining where I will place the oak rounds. To achieve accurate lines so that holes drilled to accept the rounds will line up, I use a square and mark appropriately.
Here I am determining the path of each ray of the sun.
Here I am drilling the holes.
Putting it all together after the holes have been drilled.
All the oak rounds have been cut to fit and the appropriate amount of oak balls have been slid onto each round. Everything fits and now its time to glue it all together.
The staining process.
The drying process.
The finished piece hanging on my living room wall!
I added a bell design I found online and hung it where Mom and Dad hung a cowbell on the original. Somebody or somebodies in the early days of my families ownership of this house kept bumping into the bottom right corner of this archway cracking it in several spots. In order to prevent this from happening, a cowbell was hung at about the same spot as my bell so that visitors would 'steer clear'.
Here it is along with several of my past projects to the left of my fish tank ðŸ˜‰

Friday, July 10, 2020

Valve Casing Replacement YHR-314


Hello

This is the inside of the first valve casing of a Yamaha YHR-314 student model single French Horn in F.  As you can see it has been marred.


Here are the three main components of this replacement:  The marred valve casing at the left, the rotary valve(also marred) at center and the bearing plate at right.


This is the new assembly to replaced the damaged part.  $202.78 straight from the manufacturer.


First, I have to remove key cradle bar.  It's needs to be out of the way.


Next, I remove the bumper plate from the damaged casing


Next, I proceed with the removal of the first rotor outer tubes.  With a permanent marker, I label each with L and R to ensure that they are properly positioned at reassembly.  I use a tube expander to grip the tube's inner diameter and safely maneuver it from it's fixed position as I warm the soldier joints with the torch.



Here, I removed the connecting cross braces.


Both first tuning slide outer tubes have been removed.


Now it's time to remove the damaged first casing.  I again use a tube expander to grip a knuckle of the casing.  


And, it's off!


Here, I am using a steel slide mandrel to round a connecting knuckle from the second valve casing.  This has to be done to ensure that the new first valve casing being installed inserts easily into the knuckle.


In with the new!


Reassembly with new first valve casing.


I've inserted the first valve tuning slide to help with proper placement and alignment of the tubes and new casing.  


This is the new assembly after cleaning off some of the heat varnish at the buffer wheel in the buffer room. 





As I do more of this, I will learn how better to control the heat from the torch and hopefully not create so much varnish in the disassembly/reassembly processes.  In order to take off as much varnish as I can, I decided to use a dremel tool fitted with a small buffing wheel and some Tripoli buffing compound. 
 

There!  That's better.






After dent removal and another trip to the sonic cleaner, four hours later she's finished.  
The proof is in the playing!  
All good!  
Into the case and out into a store for rental somewhere in America.


Lathe work: Brass Valve Caps