Author Archives: Roman Chernikov

Hobo and Tramp Art Introduction

I saw a picture of a wooden box and I was intrigued by the unusual carving style. The picture showed a box decorated with the hobo and tramp carving style which is famous for simple geometric cuts combined with a layered design. I read the “Hobo & Tramp Art Carving: An Authentic American Folk Tradition” book that inspired me to learn more about the hoboes and their carvings.

The Hobo and Tramp carving style originated in the late 19th and early 20th century when a large community of migrant workers and homeless vagrants were living on the road, navigating the rails, crisscrossing the country, finding an occasional job, and making a few bucks here and there. The Hobo community was quite large – up to a several hundred thousand people; they developed their own lingo, special signs, and, fortunately, a unique wood carving style. This Wikipedia page describes the differences between hoboes and tramps.

Part of the picture frame where layered basswood boards are carved with triangle knotches
Layered Notches

Hoboes and tramps spent their spare time whittling with their pocket knives, and they assembled practical projects such as boxes and picture frames. Hobos sold their carvings or traded them for food. Hobos used any wood they could find to make their carvings and they often reused wood from cigar boxes found in garbage piles. Cigar boxes were commonly made from Spanish cedar, eucalyptus, yellow poplar, white oak, basswood, and some other wood. The hobo carving style is simple enough to apply to any available wood of different densities. Carving small incisions on thin boards is easy on almost any wood. Some hobos assembled very unique guitars from cigar boxes that you can see on this Wikipedia page.

Hoboes carved notches on flat strips of wood and nailed those strips in layers as a decoration to create unique 3-D looking pieces of art. Please google images to see Hobo projects.

I am currently working on the picture frame shown below. You may see some uncarved notches on the top layer of the frame. I drilled the holes in the corners to align the layers with thin dowels.

Picture frame carved in Hobo and Tramp style
Picture Frame

The frame is carved and assembled from three layers of basswood. The size of the frame is 3.5” x 4.5” (9 x 11.5 cm). See a ruler below the frame for the reference.

I am planning to add an easel back to the frame. I will share the finished piece a little later. I would invite you to find a book or two and learn more about the distinctive hobo and tramp carving style.

Picture of Hobo and Tramp books
Hobo & Tramp Art Books

Please let me know what you think about the Hobo and Tramp Art in the comments below. Thank you and happy carving!

Air Quality PM2.5

I was concerned about air quality during sanding of my wooden projects. I use N-95 respirators and HEPA air purifies for safety but I couldn’t quantify the air quality to see if my safety measures are adequate or not. Eventually measuring air quality became a topic of interest. Let me share my findings.

Winix HEPA Air Purifier on a floor

In addition to using a Festool dust extractor I have one of these Winix air purifiers near my wood sanding place. I noticed that it catches not only fine wooden particles but also some dust.

While cleaning the filters according the manufacturer instructions I was glad to learn that the caught dust ended up in the filters and not in the lungs so I placed quite a few of those HEPA air purifiers around my house.

This particular Winix model is two feet high (60 cm) and comes with a remote.

EG Air Quality Sensor showing PM2.5 = 367 and PM10 = 425

I also got an air quality monitor that measures fine particulate matter (PM, <2.5 microns in size — PM2.5) as well as formaldehyde, and TVOC (total volatile organic compound).

This particular model shows PM measurements using mg/m3 concentrations. The included instruction provides the PM2.5 Level Interpretation table based on the EPA standards.

The reported values in mg/m3 may be different from the “Air Quality Index” that may be calculated differently.

I found that HEPA filters help with smoke too: the current outdoor air quality in California is pretty bad due to the fires caused by recent thunderstorm and lightning. The outdoor air quality index reached “Very Unhealthy” and even “Hazardous” levels in September 2020. Even though doors and windows are shut closed in my house smoke traces still find a way inside especially during windy days. I noticed that having the indoor air purifiers running 24 x 7 keep the indoor air quality index almost always 1.

During windy and heavy smoke pollution days when the outdoor air quality index raises above 200, thanks to my air purifiers, the indoor air quality index never raises more than 5-7 which is still considered “good”.

The Sun is barely shining through the smoky air at 1:00 PM on 11 September 2020. Location: San Jose, CA.

Dust particles in the air are very small but they still differ in size greatly. Measuring a number of particles of 2.5 and 10 micrometers is a standard practice but other sizes of particles can be measured too by using a particulate concentration sensor designed by relying on the laser scattering method. Such sensors are capable of continuous acquisition and computing the number of suspended particles in per unit volume which is also the particulate concentration distribution.

Device shows count of particles of different sizes
M5Stack PM2.5 Air Quality Kit shows particle count of 6 different sizes. The device is 2 x 2″ (5 x 5 cm).

I got a M5Stack PM2.5 Air Quality Kit that is based on the ESP32 micro-controller and a sensor (PMSA003) from Plantower. This device can measure 0.3, 0.5, 1.0, 2.5, 5, and 10 microns (micro meters). It can be used to monitor the air quality as is or can be programmed using Arduino (or other platforms) to extend its functionality.

Some other sensors are available for DIY integrations with various micro-controllers.

Equipped with this knowledge, sensors, and air purifiers I can quantify the air quality and make decisions to reduce my family exposure to harmful PM air pollutants. Measuring air quality with my own sensors on demand allows me to get more accurate and more up to date readings compared to weather apps and online websites that show air quality data; also it gives me flexibility of measuring and comparing the air quality indoor, in the garage, and outside.

I think it is important to be mindful about indoor/outdoor air quality, to avoid going outside during bad days, and to ventilate homes during good days. Stay safe. Search about air pollution online to learn more about the topic. I would recommend starting with this article: Why is PM2.5 often higher than PM10?

Board Warping (Cupping and Twisting)

Wood is natural material that sometimes moves unpredictably when moisture in the wood changes unevenly. Chip carving thin boards may release the wood internal stresses on one side of the board and that may lead to board warping, especially cupping.

Probably a half of my chip carved coasters noticeably cup as they are only 1/4″ (6 mm) thick. Let me share what I do about that issue. In most cases I don’t try making them flat as I enjoy using them as is. I like to see how my cup of tea rocks a little on a table. Of cause, it is not very convenient to use a tall wine glass with a cupped coaster. I use that pictured coaster with my morning cup of tea.

Example of a basswood chip carved coaster affected by the board warping. The thin board cupped.
Board Cupping of a Chip Carved Coaster

A few factors make thin boards to cup: moisture content before carving, air moisture level, sometimes heat or direct sunlight. Carving angle and chip sizes may also affect that as the air moisture may penetrate the wood from the carved side much faster.

To make the coasters straight I would suggest a few things.

Before carving:

  • Pick the wood with the straight grain without any defects. Those pieces have minimal internal stresses.
  • Keep the recently acquired wood near your carving place for at least 2-3 weeks before carving where humidity doesn’t change much (home), so the wood moisture level would balance with the environment (acclimatization). Some boards warp (cup or twist) during this stage.
  • You may try submerging the new wood (after acclimatization) in the water for a few (5-20) seconds and let it dry before sanding and/or applying the pattern. If the board warps, it would have been definitely warped after carving. So it is better to detect the warping potential before carving.
  • Carve on the side of the board that was close to the bark when it was inside the log. The reason is that the wood tends to shrink around the pith more than in the outer rings. Also wood tends to shrink around the removed chips. So, carving on the “outer” side of the board may compensate the tendency to cup “inwards”.

While carving:

  • Avoid moving the wood between places with different moisture levels: living room – garage, home – wood carving club, etc.
  • Keep the carving covered with a thick piece of cardboard in between carving sessions to prevent easy access of moisture from the air through the carved chips.
  • Be extra careful and/or avoid using too much water or a mix of water/alcohol to fill the undercutting gaps. One drop of water may be enough to cover an undercutting mistake.

After carving:

  • If the carving is still flat finish it right away. Note that finishing with oils may introduce cupping as the oils penetrate the wood and may mess with the wood a little. I finish my coasters with spray acrylic or refined walnut oil.
  • If a coaster cups very little, sanding the bottom side flat is enough. Even though the carved side will not be completely flat, nobody will notice that most likely.
  • If the coaster heavily warped put it under a heavy stack of books for a month or so before applying a finish. It may be flat or lightly curved after all that weight. You may even experiment and putting a coaster under books in a place where moisture changes a lot, such as garage or even outside.

I heard about this technique but have never tried it yet: wet only one side of the board and let it dry, the cupping will decrease. Repeat until the cupping disappears. Wet the right side of the board 🙂

Overall, moisture makes the wood to move… actually CHANGES in the moisture levels and temperature fluctuations make the wood to move.

All my coasters are 1/4″ thick, 3.75 x 3.75″, basswood. Thicker boards warp (cup or twist) significantly less but thinner coasters look nicer. Please visit the READ N TRY Online Store to review available boards with the coaster patterns that are ready to be carved

Embellishment

Let me share my favorite embellishment technique with you:

Woodburning tip: Skew

I like using a wood burning tool to outline the pattern borders before coloring. That helps me to achieve two things:

  • Emphasize perimeter lines by making them dark/black. Accenting coloring with black lines is a popular technique that some painting artists use (especially water-color and pastel painters).
  • Prevent paint bleeding across the borders. Outlining with a wood-burning tool works similar to scoring borders with a sharp knife. The idea is to cut/separate wood fibers so the paint does not bleed across the borders.

Strawberry Bowl

The “Strawberry Bowl” project was turned from basswood and embellished using the described technique. The bowl is 4” (10 cm). It was painted using felt-tip markers. The finish is acrylic spray.

The markers are very bright and fit the Christmas season very well. Other seasons I like using acrylic paint (heavily diluted with water): it is much easier to handle and it may look bright or soft as needed. I apply at least two coats of diluted acrylic paint to achieve better color-particle distribution that is thin enough to keep the wood grain still visible through.

Turned Bells

These bells were turned from maple and were embellished with diluted acrylics and finished with Tung oil. You may see the grain through the painted leafs. The pieces of maple wood were almost white but after applying oil it darkened the wood a little and exposed the before-non-visible grain.

The embellishment ornaments were drawn, burned, and painted freehand (no stencils used). It required a steady hand, time, and magnifying glasses. Using good paint brushes helps a lot.

Happy Carving & Turning,
Roman

Coloring Book

I am glad to share my free coloring book that was inspired by chip carving – an ancient craft that combines geometric shapes into intricate patterns. The book includes coloring patterns of trees, flowers, nature scenes and mandalas.

Coloring Pattern Preview

You may download this free coloring book using a link at the end of this article and you are encouraged to donate to READ N TRY if you can. Every dollar counts. I would appreciate your support!

This coloring book is good for both kids and adults; the patterns are grouped by “Easy”, “Medium” and “Hard” levels. The book contains 11 never-published-before patterns and I hope to add more patterns over time; bookmark this page, you will find more coloring patterns here soon. Aside from coloring, most patterns in this book could also be used as chip carving patterns.

Chip carving most often uses triangles and less often lines, rectangles and other shapes. Repetition of triangles of various shapes and sizes generates an unlimited number of entangled elements that can be used to decorate flat surfaces such as benches, cutting boards, spoon handles, coasters, etc.

Rosettes and rings — circular combinations of triangles — play a major role in chip carving. Rosettes are similar to mandalas — they have a center point and usually round but rosettes can also be any shape, even rectangular.

Rosette Examples

Coloring patterns is a relaxing and rewarding activity. Print the patterns on your favorite paper and enjoy your coloring time. You may also print the patterns on vinyl and make colorful stickers, coasters, gift cards or picture frames.

$0.00 | Free Coloring Book — email delivery or download it here: Coloring Book (PDF)

Please consider donating to READ N TRY (learn@readntry.com) so I could design and share more coloring patterns in the future. Thank you for your support!

You may send photos of your colored pages to learn@readNtry.com. I would appreciate your comments and feedback.

Thank you!
Roman

Special thank you goes to my friend Tianhao who suggested similarities between coloring and chip carving patterns. That was a wonderful idea. Thank you!

Boards with Chip Carving Patterns

You may buy the highest quality basswood boards with applied chip carving patterns; they are ready for chip carving. These basswood boards are smooth but not sanded. A computerized system is used to apply the patterns with a regular mechanical pencil (0.5 mm) for easy clean-up.

The board size is 1/4 x 4 x 8″ (0.6 x 10 x 20 cm). The patterns are applied with narrow margins so the carved and finished square coasters will be 3.75″ (9.5 cm) in size.


Basswood board with applied pattern: Dandelion
Board Size: 1/4 x 4 x 8″ (0.6 x 10 x 20 cm)
$18 | Free Shipping within the US

Board with Dandelion design; it includes two chip carving patterns.

Basswood board with applied pattern: Supernova Square
Board Size: 1/4 x 4 x 8″ (0.6 x 10 x 20 cm)
$18 | Free Shipping within the US


Basswood board with applied pattern: Supernova Round
Board Size: 4 x 8 x 1/4″ (10 x 20 x 0.6 cm)
$18 | Free Shipping within the US



Read more about the chip carving patterns in my post about Coaster Patterns. Let me know if you would like to get more patterns ready to carve on the high quality basswood. If you comment below please specify the pattern name you tried. Thank you!

Find more boards with chip carving patterns in the READ N TRY online store.

Rosette Chip Carving Practice Board

The highest quality basswood is used to manufacture these chip carving practice boards. This board includes several different rosette patterns and it is great for advanced as well as for expert chip carvers. We pre-carve examples so you could see how different chips should be carved. Click on the image below to enlarge the pattern.

Rosette Chip Carving Practice Board

$17 | Free Shipping to US & Canada


We transfer the patterns using our computerized system to achieve the ultimate precision. A regular mechanical pencil is used for drawing the chip triangles (so it is easy to clean-up) and a red pen is used for highlighting the middle dash lines.

The board features mostly 3-corner chips arranged in circles and rings to form rosettes; these are standard chips with all three facets carved with the same angle. One rosette features 4-corner chips; those chips are carved by using vertical cuts on two sides.

Board Size: 4 x 8 x 1/4″ (10 x 20 x 0.6 cm). The board is 1/4″ (6 mm) thick; it is designed for carving with the angles up to 65 degrees. With the steeper carving angles and/or deep undercutting it is possible to cut through the board; use solid material under the board while carving to avoid accidents. We found that the board thickness is perfect to avoid/unlearn a heavy undercutting habit/mistake.

The board surface is flat but not polished; you may see some very minor tool marks from a thickness/surface plainer on the board. If a surface is sanded the wood fibers will keep some abrasives from sand paper that may dull a chip carving knife faster; therefore we don’t sand the boards. Please contact learn@readNtry.com if you would like to get a sanded practice board as a custom order.

Don’t forget to sign and date your practice board; it may be helpful when you find your carved board decades later. Read a story about how the chip carving practice board project started, tips, feedback, comments and see examples of carved practice boards.

4 Corner Chip Carving Practice Board

The highest quality basswood is used to manufacture these chip carving practice boards. This board includes multiple classic Old-World-Style chip carving patterns that require vertical cuts on two sides of a chip. This board can be carved using both modern and old styles of chip carving with your regular chip carving knife. This board is great for advanced and for experienced chip carvers. We pre-carve examples so you could see how different chips should be carved. Click on the image below to enlarge the pattern.

4 Corner Chip Carving Practice Board


$16 | Free Shipping to US & Canada

The board features mostly 4-corner chips arranged in various ways; these are traditional chips used in old-world style of chip carving where vertical cuts are used on two sides of the chip. The board also includes standard 3-corner chips on top, so you could “feel” the board. The last pattern on the left shows an example of how 3-corner chips and 4-corner chips may be nicely combined.

Notice how we draw the chips with vertical cuts: the dash lines are placed very close to the solid lines of the chip borders on the internal side of the chip to indicate vertical cuts. These cuts are done by holding a chip carving knife vertically about 90 degrees to the board. Experiment with the vertical cuts by holding the knife at 85, 80, or 70 degrees, so they become almost vertical, to achieve different effects.

The third row of patterns features an interesting kind of chips: three corner chips where two sides are done using vertical cuts. These traditional chips are relatively easy to carve; they have a unique play of light and shade. Not sure what is the right English name for those chips but the translated name from Russian is “Splitters” (“Сколыши”).

Board Size: 4 x 8 x 1/4″ (10 x 20 x 0.6 cm). The practice board is 1/4″ (6 mm) thick; it is designed for carving with the angles up to 65 degrees. With the steeper carving angles and/or undercutting it is possible to cut through the board; use solid material under the board while carving to avoid accidents. We found that the board thickness is perfect to avoid/unlearn a heavy undercutting habit/mistake. The board includes a grid area at the bottom right. You could repeat some existing patterns there or draw a new design or two to practice more.

The board surface is flat but not polished; you may see some very minor tool marks from a thickness/surface plainer on the board. If a surface is sanded the wood fibers will keep some abrasives from sand paper that may dull a chip carving knife faster; therefore we don’t sand the boards. Please contact learn@readNtry.com if you would like to get a sanded practice board as a custom order.

We transfer the chip carving patterns using our computerized system to achieve the ultimate precision. A regular mechanical pencil is used for drawing the chip borders (so it is easy to clean-up) and a red pen for highlighting the middle dash lines.

Don’t forget to sign and date your practice board; it may be helpful when you find your carved board decades later. Read a story about how the chip carving practice board project started, tips, feedback, comments and see examples of carved practice boards.

EZboard 3-Corner Chip Carving Practice Board

Green EZboard material from EZcarving.com is used to manufacture these chip carving practice boards. This popular board includes multiple classic 3-corner chip patterns and it is great for beginner as well as for experienced chip carvers. The EZboard material is very soft — it is softer than basswood and does not have grain — it is ideal for kids, first-time carvers, and carvers who experience sore hands. We pre-carve examples so you could see how different chips should be carved. Click on the image below to enlarge the pattern.

3 Corner Chip Carving EZboard Practice Board


$18 | Free Shipping to US & Canada
Out of stock. Coming soon.

We transfer the patterns using our computerized system to achieve the ultimate precision. A regular mechanical pencil is used for drawing the chip triangles and a red pen or pencil for highlighting the middle dash lines.

The board features mostly 3-corner chips arranged in various ways; these are standard chips with all three facets carved with the same angle. The board includes a grid area on the bottom right. You could repeat some existing patterns there or draw a new design or two to practice more.

Board Size: 4 x 8 x 1/4″ (10 x 20 x 0.6 cm). The board is 1/4″ (6 mm) thick; it is designed for carving with the angles up to 65 degrees. With the steeper carving angles and/or undercutting it is possible to cut through the board; use solid material under the board while carving to avoid accidents. We found that the board thickness is perfect to avoid/unlearn a heavy undercutting habit/mistake.

Two rows on the bottom left of the board feature a different type of chips for you to try — we pre-carved those chips as well. Those chips are carved by using vertical cuts on two sides of a chip.

Don’t forget to sign and date your practice board; it may be helpful when you find your carved board decades later. Read a story about how the chip carving practice board project started, tips, feedback, comments and see examples of carved practice boards.

3 Corner Chip Carving Practice Board

The highest quality basswood is used for manufacturing these chip carving practice boards. This popular board includes multiple classic 3-corner chip patterns and it is great for beginners as well as for experienced chip carvers. I pre-carve 3 chips so you could see how different chips should be carved. Click on the image below to enlarge the pattern.

3-corner chip carving practice board features traditional chip carving patterns.
3 Corner Chip Carving Practice Board

$18 | Free Shipping to US & Canada


I transfer the patterns using a computerized system to achieve the ultimate precision. A regular mechanical pencil is used for drawing the chip triangles (so it is easy to clean-up) and a red pen for highlighting the middle dash lines.

The board features mostly 3-corner chips arranged in various ways; these are standard chips with all three facets carved with the same angle. The board includes a grid area on the bottom right. You could repeat some existing patterns there or draw a new design or two to practice more.

Board Size: 1/4 x 4 x 8″ (0.6 x 10 x 20 cm). The board is 1/4″ (6 mm) thick; it is designed for carving with the angles up to 65 degrees. With the steeper carving angles and/or undercutting it is possible to cut through the board; use solid material under the board while carving to avoid accidents. I found that the board thickness is perfect to avoid/unlearn a heavy undercutting habit/mistake.

The basswood board surface is flat but not polished; you may see some very minor tool marks from a thickness/surface plainer on the board. If a surface is sanded the wood fibers would keep some abrasives from sand paper that may dull a chip carving knife faster; therefore the the boards are not sanded.

Two rows on the bottom left of the board feature a different type of chips (4-corner chips) for you to try — I pre-carved those chips as well. Those chips are carved by using two vertical cuts on two beveled cuts.

Don’t forget to sign and date your chip carving practice board; it may be helpful when you find your carved board decades later. Read a story about how the chip carving practice board project started, tips, feedback, comments and see examples of carved practice boards.