Sunday, August 27, 2017

Turned beaded moulding.

 I needed to make a beaded moulding for a clock I am restoring.  But before I spend the 10 mins of joy making the beaded moulding there is a list of things that must get done first.

The beaded moulding that is attached to the back of the clock door needs to match this exactly. I was able to trace the profile and match the diameter with one of my chainsaw files.

But before I can turn the bead I need to create a mounting plate and two wooden rings that are oversized in diameter.

The first step is to layout center and scribe the desired circle on a piece of plywood and mahogany. Pay attention to the grain direction in the mahogany to ensure it matches.  Once the circles are scribed I cut them out on the bandsaw. Again everything is over sized.

 After the plywood and mahogany are cut I than make a paper joint glued with hide glue. The reason for adding American kraft paper is for ease of removing the moulding from the plywood. The glue up sequence went baltic birch plywood, kraft paper, mahogany. I also used Old Brown Hide Glue for its  open time. With the glue spread I clamped everything together and added wax paper just in case any glue squeeze occurs.

Clamping even inch I could to ensure everything is clamped properly. The last thing you need is the wood to fly off. 

Getting ready for gluing. Often I span my glue ups between the jaws of my vise. This allows proper support as I clamp.

Next came the grinding of the cutter necessary to make the bead. The tool of choice is the tip of an old file. This is a common technique in the restoration world and one that should be remembered. 

Here I am filing the tip of the file to match the moulding. The file I used was a 1/8 diameter chainsaw file. Hand files are made from mild steel so modifying them is quite easy. 

The tip of the file shaped. 

This is the view of the first beveling on he bottom of the cutter. 

After the primary grind has been establish I than use a a chainsaw file, or a small grinding wheel, or dremel to grind as much metal away. I often compare this to a complex moulding plane iron. By removing as much metal as possible I can than hone the cutter with slipstones to ensure a quality cut. 

Once everything has dried and the cutter has been made its time to turn. But first I need to bore a center hole in the plywood so I can screw it to the treaded center of the Carey lathe. Side note: The  W. W. Carey lathe was made in the end of the 19th century in Lowell, MA and an amazing lathe to say the least. 

The screw center. 

Center bored
Before I can start turning the bead I must first remove the necessary material to ensure the lathe and the turning are true and balanced. This is the reasoning for leaving everything over sized. Once everything is close to true, I can than turn the thickness and width down to size. I used a parting tool to do all the lathe work necessary before introducing the customer cutter.

I tested the cutter before reaching final thickness. I wanted to make sure I understood how the tool would cut. 

Where I engaged the the tool to the wood. 

Here you can see I am reaching final width and depth. 

The turning wasn't 100% balanced and true but it was close enough. 

The end result was a success.

There was a lot work involved just to get ready to turn. But boy those 10 mins of turning was fun.

I hope you found this interesting and remember in case you need to make a custom cutter someday.

Sunday, August 20, 2017

Furniture Hardware. Keeping track.

When restoring furniture often this means taking pieces apart. But like taking a car engine apart, I am not just going to do grab all the hardware and put them in a box or a glass jar. Instead I am going to have holder laying out exactly where each piece of hardware came from. Often I use a piece of cardboard and just make a series of holes with a knife or an awl. Than I place the screws, nails, escutcheon pins, locks, handles, hinges, or whatever in a sequence that allows me the reassurance that everything goes back exactly where they came from. The holder can be made from cardboard or plywood or even hardwood. Lastly I make notations on the holders so that not only I can I install the hardware exactly, but that my subs can too. For example I will label a series of screws with the word left (L) and right (R) to make certain I don't flip the screws around. If L & R isn't enough I even label from what position I am looking at the piece when I wrote L & R. 

While this may be a simple tip it is amazing how useful it can be in the shop or onsite. 


Wednesday, August 16, 2017

Screws that won't budge. What to do.....

As a restorer  I often am taking something apart and reassembling it. Often the screws that I am removing are slotted. I know, I know. Most of you hate slotted. But I on the other hand love them. So what do you do when a screw doesn't want to budge? Well a long time ago I learned by heating the head of the screw with a soldering iron you can make the wood pull away from the heat. Also if you heat the screw hot enough, once the metal cools it shrinks just enough for the screw to  be loosen. The soldering iron tip I find the most useful is the one that tapers on all four faces and fits into the screw slot.  

Once the screw has been heated a very important too you will need is a proper screw driver that fits properly in the screw slot. Another great tip is to bevel the corners of the screw driver tip so it doesn't ruin the slot.  We restorers like to keep things nice and tidy. Lastly once you've heated the screw and everything is cooled down, make sure to first twist right to break any bond and than rotate left to remove the screw. 

The next blog post will be about keeping track of your hardware. So stay tuned for that.