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Renwick Gallery Connections Video

2017 June 21
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by Sebastian

This video was produced with the help of Alain Hain for Connections, the re-installation of the permanent collection of the Smithsonian American Art Museum’s Renwick Gallery. I was asked to select a work from the collections and speak about how I felt it connected to my own.

I chose Kathryn Clark’s Foreclosure Quilt.

Coincidentally, Kathryn Clark chose to speak about my work, Impressions, in her video:



2017 May 31
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by Sebastian

Unseen – 2017 – Montclair Danby marble – 30 x 16 x 4 in.

The vast majority of work created by artists goes unseen.

photography: Geoff T. Graham


2017 February 22
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by Sebastian
Latent 2017 4 x 16 x16 in.

Latent – 2017 – Montclair Danby marble – 4 x 16 x 16 in. – Private Collection

Often, the most exciting pieces I make happen when collectors say: “What do you really want to do next?”

This can be intimidating since you are being put on the spot and there is pressure to have an idea immediately. Luckily for me, my work takes so long that I will literally never catch up with the running and ever changing list of potential artworks in my head. Also, one of my favorite things about visual art isthat is speaks with out words, however sometimes you do need to be able to articulate an idea before actually making it. In this case I was very fortunate that they were interested in seeing my vision. Thanks, T & L.

photography: Geoff T. Graham

Doggie Drapery Diptych

2016 November 26
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by Sebastian
Doggie Drapery Diptych - 2016 - Carrara marble - 14 x 24 x 4 in. - Private Collection

Doggy Drapery Diptych – 2016 – Carrara marble – 14 x 24 x 4 in. – Private Collection

A really fun commission for a lovely couple with great love for art and pugs. Look closely–they’re there!

photography: Geoff T. Graham

Fine Art Connoisseur: Deceits That Delight

2016 October 8
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by Sebastian

FAC_July_2016Fine Art Connoisseur: Deceits That Delight by Max Gillies

Marble sculpture, Yours, Mine & Ours featured in and article about troupe l’oeil by Max Gillies.

Glove: Leather

2016 August 14
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by Sebastian

The only non-marble member of the Work Glove collection:

Glove: Leather Indiana Limestone 4 x 12 x 8 in.

Glove: Leather
Indiana Limestone
4 x 12 x 8 in.

Skilled Artisans: A feature for Alaskan Air’s in flight magazine

2016 July 8
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by Sebastian

Page 73, Skilled Artisans, for Beyond by Lora Shinn

Yep!  I & my stones are officially part of an in flight magazine. So if you find yourself traveling from Seattle to Juno with a dead iPhone– have look at Beyond, the Alaska Airlines Magazine!
Sebastian Martorana straddles the line between art and craft, utility and beauty. At age 21 he apprenticed with a company outside of in Washington, D.C., as an undergraduate student, under the lead of Tim Johnston. In addition to learning to carve, he polished stone, made granite counter tops, benches and bathtub surrounds . . . read more [see page 73].

This Is Not a Jacket

2016 February 24
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by Sebastian

It’s not . . .

This Is Not a Jacket 2016 Montclair Danby marble  33 x 15 x 4 in. Private collection


This Is Not a Jacket
Montclair Danby marble
33 x 15 x 4 in.
Private collection

Seasons Magazine – Russia

2016 January 26
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by Sebastian

2015-01-01 Seasons_mag_SpreadSo this is my first appearance in a Russian publication, Seasons Magazine— but not the first time I’ve shared article space with Alasdair Thomson! The article is Titled “Pygmalion,” and I understand that it is featuring the work of three contemporary stone sculptors in the context of the current design trend toward marble. Sadly, I can’t read it, of course, but the pictures sure are pretty– thanks to Geoff Graham & Alain Hain

Link to the full article in PDF form here.

How to Make Carving Tools on the Cheap

2016 January 25
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by Sebastian

Part 2: Chisels

 [see below for Part 1: Mallets]
So this portion of the post is less “How To” than “Where To…”


a whole mess’o ground & re-pointed chisels

As with a lot of specialized trades, just knowing where to get the right tools if half the battle– the other half is finding a lending company to take out the loan required to purchase trade specific equipment.

I should say that, as a professional user of chisels, I am spoiled. I only use carbide tipped chisels. In my opinion, straight-steel chisel for anything other than alabaster and talc are a waste of time. I want to spend more time carving and less time sharpening. Anyone that has ever been an apprentice has spent plenty of time sharpening chisels… so I’m over it. I have always been happy to spend the money on a chisel that will hold it’s edge for a decent period of time–particularly with marble and limestone, with granite– all bets are off; break out the bench grinder.

However, if one finds themselves in need of lots of such tools for educational programs with no budget, as I recently have, then this issue of expensive tools can be a real problem– especially if you want “good” tools.

For doing workshops on letter carving, which requires a small but very precise edge, I wanted to have a set of chisels for the entire class that would stay sharp. This would cause less frustration for beginners, who are given to frustration with processes that do not include a touch-screen… So I needed to do some hunting.


1/4″ Carbide Tipped Tile Chisel from Kraft Tool [pre-grinding]

The main thing was to find chisels that had “carbide” tips. I have played with the process of making my own chisels from scratch, but I’m not a blacksmith and I don’t have the proper set up for that kind of metal work. So I needed something that already had carbides at a price that wouldn’t make me seize. Obviously, I went online, but even the cheapest carbide chisels for hand hammers (meaning without turned shanks for use with air hammers) were pretty expensive both individually and in packs.

Eventually, I found an affordable price on “Superior Tile Cutter” carbide-tipped-chisels on Grainger’s site, with has a location near my shop. So I ordered a couple and picked them up few days later. Turns out they were just what I was looking for– with a few idiosyncrasies. But, having gotten the chisels in their original manufacturer’s pacaging was key. Turns out that they are made by the Kraft Tool Company in the good old U-S-of-A, specifically–Kansas. Kraft (like the dinner, but not) has a website where I found the same chisels being sold for a few bucks less each!


[post-grinding] more acute and symmetrically angled point

The kind of chisels I wanted for the relatively small letters I’d be focusing on were the 6″ Carbide Chisel w/1/4″ Wide Tip, Product #: ST030, currently priced at $7.90 a piece. This is at least 3 times less than a chisel of a similar size from a carving specific store or [shudders] an “Art Store…”

To Kraft Tools great credit, their customer service is awesome and when I called them and explained why I needed to buy in bulk, because I was doing a workshop with a non-profit, public school in Baltimore, (and provided all of the relevant documentation, of course) they worked with me to get an even better deal. Thanks, Kraft Tool!

The rub– these chisels do require a bit of “after-market” modification to be made ideal for stone carving. They are intended for tile work, so for reasons that I don’t fully understand the carbide tip is inserted into the steel shank at an angle, instead of directly in the middle, as with a stone carving chisel. This is odd, but, since only the very edge of the carving blade is used when carving, this really doesn’t matter as long as the proper angle away from the edge of the blade can be achieved. So this means a fair bit of time with the bench grinder and a bluestone wheel (I’m still using the set that came with the bench grinder, so nothing special there).

So, as long as you are wiling to put in a little elbow grease, tapering the tips of the relatively blunt “tile” chisels– then you an make a real nice point that can be honed with a diamond block. Remember to douse your chisel in cool water periodically when grinding to prevent over heating! Also, for comfort, you could lightly ease the lengthwise corners along the 1/4″ shank. (the larger sizes, 3/8″ & 1/2″ chisels are made from hex-stock) This relatively small amount of work yields a very passable, novice-grade chisel at a student grade-price.



1/4″ chisel ground down for use with a pneumatic air hammer

Modifications– I will probably be buying a lot more of the chisels soon, since I do a lot of making my own chisels profiles too, I rarely buy a chisel that is anything other than flat bladed. I make the rounds and cut the teeth myself as needed. This allows me control over the final shape of the blade and thus the texture. I have to say, when trying to make the proper profile for a texture I am working on, I would be a lot more comfortable experimenting with a chisel that chisel cost less than ten dollars that one that cost 40… Also, if you wants to make these chisels work for a pneumatic hammer, the 1/4″ stock can be milled down by just grinding off the corners of the lower 2 inches of the chisel.

For a pneumatic air hammer to accept the shank of a chisel it doesn’t need to be perfectly round. It just needs be small enough in width & depth to be inscribed within the inner radius of the opening of the hammer. For instance, a ground down 1/4″ Kraft Tool chisel fits the Trow& Holden Bantam Air Hammer. If I had a lathe this would be very easy– but I don’t… so I have to eyeball it on the bench grinder. Grinding the corners evenly, giving it radial symmetry, doesn’t need to be done perfectly, but it improves stability and makes the chisel easier to control while carving. So again, if you are willing to put in the time, you can make a pile of carbide tipped, pneumatic compatible chisels for dozens rather than hundreds of dollars.


Part 1: Mallets

IMG_2700So, for the last few years I’ve done several stone carving workshops and demonstrations. This led me to think a lot about the tools I used and their accessibility—or lack thereof. The truth is that carving tools cost—a lot.

This is one of the things that make interactive demonstrations cool, because people can use the tools and materials, briefly, and get a taste for the craft. No commitment, no cost. However, when contemplating a class, the issue of tools and materials looms large. Anything purchase from an “art store” or any craft-specific source tends to be pricey, stone tools are no exception. They are particularly expensive not only because they do need to be made of quality materials so that they last—also the relative short list of stone-specific-tool-makers keeps the prices high.

So when I decided to do a periodic workshop with a local public school in my neighborhood, cost was one of the first issues. I wanted to be able to provide the students with tools that were as close to professional grade—with no budget. Since all cost would be on, I had to get creative.

One of the most unique and important tools is the mallet/hammer. The only kind of hammers that people are going to find cheap and easy at a hardware store are the standard framing or claw hammers—not good for carving. I use both flat and round hammers to carve with depending on the size of the details and the type of stone.

Many dual directional masons hammers from stone specific suppliers, though beautiful, top $50 bucks. Many carvers favor round mallets, like the kind I use for wood carving. Cost is anywhere from $15 to $50 + shipping.

Technically one could just use a piece of wood, but wood gets chewed up pretty fast when striking a harder material. The wood needs metal jacketing. But most of the mallets sold are actually on the heavy side for small carving anyway, especially for beginners, especially if you are focusing on small lettering.

The most important factor is not really weight but velocity and efficiency, a two small but strong pieces of metal striking one another produces A LOT of force. This is why I like a wood AND metal mallet rather than just wood.

Here’s how I made enough mallets for a class of 15 for under $30. It wasn’t super efficient at the first attempt, but it was realtively quick and easy. And while they are not fancy, but I quite like them and have been using them myself for a while now. It doesn’t hurt that the shopping list is two items long (I shopped at Lowes).


What to Get:

3  oak dowels (36″long x 1″ diameter) — about $5 each

1 galvanized pipe (24″ x 1″ inner diameter) – about $12

How to assemble:

1. Cut wooden dowels to 7.25″ lengths.


2. Cut threaded ends off of pipe. This leaves approx. 22″ Cut remainder to approx 1.375″ lengths.


I made a jig because I didn’t have a metal blade for my chop saw.


They were pretty close to even . . .










3. Place the pipe around the end of the cut dowel.




Drive in screws or nails to expand end of wood agains the interior of the pipe. You can add adhesive (resin or glue), both to in interior of the pipe and around seams/cracks after driving the nails to lock everything in.

Let set over night.





4. Sand off any splinters/burrs or excess glue. Wax or oil the whole thing to seal & prevent oxidization.


I used a sanding disc on an angle grinder


I used beeswax dissolved in mineral spirits–but butchers wax would be just as good


Bake at 350 degrees for 2 hours . . .


Makes 15 mallets. Total cost: $27. Cost per: approx $1.80



Note: just kidding about that– PLEASE DO NOT BAKE MALLETS!



Modifications– if you want more power—you could use larger size dowel and pipe and turn the dowel for ergonomic grip. Or make handle longer for better swing/velocity. Or add and additional jacket of 1.25″ pipe on top of the 1″ pipe for more weight. But the 6.75″ x 1″ mallets should be fine for soft stone and detailed work and after several months of some serious abuse, they have held up extremely well.