Soundpost repair and a fake Stefano Scarampella label / old violin 

A scraper does a better & more accurate finishing job than sandpaper.

If you sand, use compressed air to blow out the sawdust. This works well for me.

+Steve Oromaner Normally one put the grain counterwise. I f there is a crack in the spruce top you strenghen it by crossing the grain of the patch, thus avoiding the crack to open again.

That 'hunk of wood' is fitted into the hollowed out plate for a reason. Since the belly will bulge at the sound post a veneer does not prevent that. Ideally the patch to be physically effective would be external, but that would look ugly, so the next best & only decent way to repair a sound post crack is to carve the original would out close to the external surface & fit a new piece to fit it internally. However, to maintain the shape a plaster mould of the belly is made (with separating material like aluminium foil, while being careful not to let the curing heat affect the varnish etc) & that then supports the belly while carving & gluing in the patch. As he has shown, the 'hunk of wood' patch is then carved back to original thickness, although leaving it slightly thicker may not be such a bad thing either.

That's the way it's usually done, for sake of strength.

+Wellington Amancio .... try to use heat and steam ...

+JB Violins (JosBIGnightout) , thank you very much.

+Wellington Amancio Padim A hair dryer works well also.

+Gunnar Bergvall Well seems I found the answer in the comments. It was a crack that had to be patched.

They are block that go in the corners. Look up violin corner blocks on google. I'm sure you'll find photos. Strad, Amati, Del Gesu, they all used them.

Don't use Paypal! "The British Violin" book, Early British makers used through necks, and no corner blocks or linings, and integral bassbars, and that Urquhard set the ribs in a groove in the back. It's worth noticing that these makers were also viol makers. The Pamphilon section notes that he set the ribs into the back, too--the place to look for this if you haven't seen it yet, is right at the ends of the points of the corners vs the back, where often a bit of the rut that's cut for the ribs shows in the back, sticking out past the rib corners. Another hint that this is going on is if the margin of the ribs against the back is absolutely perfect--since it's in grooves, it can't move around.) the book also notes that these makers are "following a Brescian style", which the book later notes was totally dropped by 1720 or so. The general idea currently is "Lack of corner blocks (or fake corner blocks) is almost always a hallmark of a German, 19thC trade fiddle." A "pro" as you put it, makes the decision to add these blocks according to the violin you are working on, if structure is needed.My Pamphilon does have corner blocks and linings (in spite of the recessed ribs) so these I attribute to later additions because the violin has been opened for repair in the past.The 'zero mould' tradition of violin making was actually more widespread than is often supposed. It is mainly seen in 17thC instruments and comes from the viol construction methods. It is typified by complete lack of corner blocks and ribs recessed into grooves in front and back plates. Just a little info for you

@@Candelaresearchcenter Thanks! Very interesting! Why didn't he build a new better bass bar? Is that taboo in the violin world. Certainly there are a million of these types of fiddles around. I can understand not re-graduating the top, but the bass bar looks so crappy!

Next time

If a 'genuine Strad' was cracked at the sound post it would need a similar patch, but done with a plaster cast support to maintain shape. Sure it would devalue the instrument, but a cracked belly at the sound post has already done that.

He had to remove the top of the violin to repair a crack in the wood. In a simple soundpost repair it can be done without removing the top. This was more complex due to tge crack and the need for a wood patch to be glued in place.

rockabillygone he removed top to repair soundpost damage and cracks to top table please note contents before talking crap

Yeah, I am really not sure if you are knowledgeable in the field of sarcasm? What is the title f the vid? Oh, nevermind. If you didn't get it, I really can't explain it.