Archive for December, 2018

More Scroll Progress

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More Scroll Progress

Final carving tasks

I had removed most of the rough wood, in the last post, and had smoothed the outside of the turns of the scroll.

Now it is time to undercut the turns of the scroll so that they have a more delicate look, and are physically a little lighter.

Carving the volutes.

Carving the volute and neck.

 

Completing the volute and pegbox.

Completing the volute and pegbox.

 

So, at this point the one scroll is essentially done, and the other will soon be done as well. I will complete the purfling on the two instruments before setting the necks, so that is next.

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Scroll Carving

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Scroll Carving

Rough wood removal

In the last post, I demonstrated how I use a thin saw, to cut to the layout lines, so as to facilitate removal of the rough wood, preparing to carve.

Now I complete the removal of the rough wood and begin to carve.

Removal of remaining rough wood.

Removal of remaining rough wood was quite easy, because of all the saw-cuts.

Scroll-Carving

I begin to incise the outline of the eye, and carve to volute to size.

Next, I begin to incise the outline of the eye, and to carve the volute to size.

 

Trimming the scroll to the layout lines, before beginning to undercut the turns of the scroll.

Trimming the scroll to the layout lines, before beginning to undercut the turns of the scroll.

 

Starting to look like a scroll...barely.

Starting to look like a scroll…barely. I planed the cheeks of the scroll to the layout lines.

 

It is always nore encouraging when the scroll begins to take shape.

It is always nore encouraging when the scroll begins to take shape.

 

I want to complete the two instruments side by side. I have to stop and work on the other scroll.

I want to complete the two instruments side by side. I have to stop and work on the other scroll.

 

Carving the pegbox.

Carving the pegbox.

 

One scroll is nearing completion, the other is just begun.

One scroll is nearing completion, the other has just begun to take shape.

 

The next web-log post should include two completed scrolls, the installation of two fingerboards, and the setting of two necks. But perhaps that is too ambitious. The holidays seem to be a difficult time during which to get things done. (sigh…)

However, along with the graduation of both back plates, removal of the inside forms (molds) and the final assembly of the instruments, that is pretty much all that is left to do. Oh, yes, and purfling both plates on both instruments. I used to install purfling before completing the arching of the plates, but it frequently resulted in uneven plate overhang (with which I was quite disappointed) just because the purling had locked in the shape of the plates, and so, if the rib garland had changed shape at all, I was stuck. When I began purfling after assembly, the overhang problems pretty much went away.

Anyhow, that is how the project is progressing.

 

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Back Plates and Scrolls

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Back Plates and Scrolls

Progress

Here are the back plates: the arching is complete, but the graduations are not begun…inside surface is still flat. The two scrolls have only been cut out, for the rough profile. I did lay out and drill pilot holes for the tuning pegs. That will make it easier than trying to drill them after the outer shape is completed. At this point the sides are relatively flat.

Two back plates, nearly complete: two scrolls, just begun.

Two back plates, nearly complete: two scrolls, just begun.

 

Then I began cutting out all the rough outlines of the two scrolls, using a saw:

Beginning to cut out the neck/scroll combination, using a saw.

Beginning to cut out the neck/scroll combination, using a saw.

 

Removing the excess wood from the sides.

Removing the excess wood from the sides.

 

Cutting to the layout lines, all around the scroll, from both sides.

Cutting to the layout lines, all around the scroll, from both sides.

 

Continuing around the first turn of the scroll.

Continuing around the first turn of the scroll.

 

Cuts completed around the first turn.

Cuts completed around the first turn of both scrolls.

 

Excess wood removed from first turn on both scrolls.

Excess wood removed from first turn on both scrolls.

 

Back view with first turn wood removed.

Back view with first turn wood removed.

 

 

Completing the scond turn of the scroll, using a fine-toothed pull-saw.

Completing the scond turn of the scroll, using a fine-toothed pull-saw.

 

Second turn cuts completed.

Second turn cuts completed.

 

The remaining wood will be removed using gouges, planes and scrapers, There is still a long way to go, but it does look more encouraging, this way.

Next time we will be carving the pegboxes and scrolls.

 

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Beginning The Back Plates

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Beginning The Back Plates

Planing the Plates to Proper Profiles

Maple is a lot tougher to carve than Spruce is, and European Maple is tougher than the domestic maples. But it has to be done, so, we get going on it. I chose to carve the back plate for the Titian model violin, first.

Beginning Planing, using a toothed plane.

Beginning Planing, using a toothed plane.

Later, as I came nearer to having the plate correctly shaped, I switched to a smooth, curved-sole finger plane. I have two main toothed planes, to which I have affixed wooden handles, so as to distribute the force across my palm, instead of concentrating it on my fingers and thumb. I don’t need the handles as much, using the smooth planes, because I am usually making shallower cuts.

 

Checking relative curvature with a straight bar.

Checking relative curvature with a straight bar.

The arching is still pretty rough, but it is beginning to take shape.

The arching is still pretty rough, but it is beginning to take shape.

After the shape is nearly complete, I switch to scrapers, and try to accurately match my arching templates. Finally, I use a flexible scraper with which to smooth all transitions, and leave a finished surface.

Arching is nearly finished.

Arching is nearly finished.

 

Completed Titian back plate with Plowden plate just begun.

Completed Titian back plate with Plowden plate just begun. (Using a smaller toothed plane.)

It is interesting to see the different wood colors. I bought both from the same source, but they are certainly not from the same tree. That is OK. Both are good European Maple, and will work very well.

Both plates nearly complete--Plowden still needs work.

Both plates nearly complete–the Plowden plate still needs work.

 

I was getting too tired to go further this evening. My hands were beginning to hurt, so it was time to call it a day. After I finish the scraping and shaping of the Plowden back plate, it will be time to begin the interior arching (graduation). Also, I ordered a different pair of neck blocks, because I realized that the pair of neck blocks I had were actually Viola neck blocks, and I hated to waste them. So, when the new blocks arrive, I will also lay out and begin carving the two necks and scrolls.

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