Community challenge #24: Elements (closed)

Just like @WillAdams said, I downloaded the svg from the Carbide Elements. Then imported the file directly out of my downloads folder.

I then dragged the new svg to an area off my workspace to do the initial grouping and resizing, then dragged the result into my design (stock) area.

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LASER BIERDECKEL

Personal Favorites:




OK…I thought the German word “Bierdeckel” sounded cooler than “beer coasters”.

My new JTech 7W Pro spindle-mounted laser arrived a few days before this contest was announced, so a great opportunity for me to learn Lightburn. I’m loving the laser – highly recommended if you’re looking to branch out. There’s a bit of a learning curve, but lots of great video tutorials out there.

I for one did not know about the Carbide3D “Elements” Library prior to this contest, so thanks for making the community aware.

BUILD PROCESS

I bought these thin bamboo cutting boards: https://www.amazon.com/gp/product/B016OP6N3M/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1

I was able to squeeze ten 4-inch blanks out of them.


In the Carbide3D Design Elements, I selected ten images from the “US Armed Forces” category that would look good in a circular format.

I spent a lot of time learning how to tweak the vectors in Lightburn to redraw and close paths that I needed to “fill” (for example, the flag and cannonballs in the United States Army seal).

Example - Cannonballs before editing:

Example - Cannonballs after editing to close the paths:

On a scrap, I made a test grid of varying speeds (20/40/60/80 ipm) and laser power levels (20%/40%/60%/80%/100%), then selected speeds/power levels for the project and tested again before doing the final burn.

For lines, I settled on 50 ipm/80% power. For filled letters, I settled on 80 ipm/80% power. I bolted a fixture to my wasteboard for repeatability, and lightly clamped each blank to ensure it didn’t move during rapid movements.



LESSONS LEARNED

  • Bamboo machines beautifully (with sharp endmills), but it lasers a bit unevenly in terms of color. Many threads confirm that this is just part of bamboo’s charm. Burning at a higher power and making multiple passes doesn’t help – there will always be variations due to the inconsistent nature of the laminated strips of bamboo.

  • Every type of wood seems to have a different sweet spot for laser settings. Bamboo, maple and basswood are all light-colored, but testing showed they each need unique speed/power settings.

  • Smoke extraction is mandatory – lasers create a LOT of smoke when etching wood. I bought a Stinger vacuum:

  • and a sheet of carbon filter:

I cut it up, removed the cheapo Stinger filter, and zip-tied the carbon filter material in place. It removes 99% of the smoke, but not the smell of burning wood.

Carbon filter for Stinger vacuum. Note the smoke residue:

FILES & CUTROCKET

Bamboo Coasters.c2d (20.3 KB)

Example Lightburn File: Army.lbrn2.zip (215.0 KB)

Cutrocket Link: Laser Bierdeckel by ScottsdaleSteve

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I do wonder if the vacuum is over spinning the fan causing it to generate enough current to back feed the power board? I guess it wouldn’t be enough to cause damage. If the Vac is annoying to listen to you could always use a ducted fan with some lightweight ducting with the filter to do the same job with less power draw and sound.

I also see no noticeable difference between 80% and 100% so it’s smart to keep the diode current down as it reduces the heat that needs to be dissipated by 20% possibly prolonging the diode life.

Good point - I think I’ll block off the top half of the exhaust intake, so it doesn’t potentially interfere with the laser fan.

Ha. It’s incredibly annoying. It screams like a banshee, so I have to wear eye AND ear protection to use the laser.

Agree. I’ve read that 100% power is bad for the long term health of a diode laser.

This is the exhaust fan I meant to link

Cheap and way less noise!

1 Like

Here is my submission. It is a PG version of a wine holder that I’ve made in the past.
File used: HappyStPatricksDay_5.svg

I resized the file to fit my material and did some boolean operations to merge the image with an already created bottom section.
paddy wine holder

Toolpaths:
Detail- No-offset contour, depth of .005, 20 degree v-bit.
Inside and outside contours-1/8" compression bit at full depth.

Material: 1/4" MDF.

Process: Carved, sanded, 2 coats of sanding sealer, spray paint, sand off the overspray.

I ended up deleting some of the detail in the face due to tear-out on the first 2 attempts (using 1/4" ply). I also deleted the text as it wasn’t visible with the wine bottle inserted.

Issues-The first attempt on plywood I had a lot of tear-out and chipping on the detail. On the second attempt, I slowed down my feed and it turned out a little better but when I sanded off the over-spray, I went through the top layer of plywood in some spots. Third attempt using MDF. I still had some tear-out (see the buttons on the vest) so I slowed down the feed more and the last button turned out like it should.

11 Likes

LASER BBQ SIGN

Back side with new brand

Brand closeup

OK, I hesitated to post this, but @gallionl set the tone with a humorous entry so here goes. Admittedly not my finest work, but this new laser is fun! I have a Treager pellet smoker, and you truly don’t need teef nor a fork to eat a smoked brisket off this thing.

I’ve always been interested in one of those branding irons to personalize projects, but never got one. With the new laser, I designed a small logo. This is my first project to get branded.

The grills and BBQ tools are straight from the “BBQ” category in the Carbide3D design elements.

The “smoke” above the grills is modified from the Flourishes_19.svg design element.

Basswood, JTech 7 Watt Pro Laser, 60 inches/minute, 60% power, .006” line interval.

Burn-in-progress:

Cutrocket Link: BBQ Sign by ScottsdaleSteve

10 Likes

Final day of the challenge, let’s see if we get a few last minute entries!

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Im a slacker and just started today. Thought we had longer to go. I am working on making some Halloween decorations for the yard.

This was my first try cutting foamular from menards. Here is progress so far. Hoping to get painted later today and post write up.

8 Likes

My wife and my mother in law have started putting out their fall decorations. I wanted to make something simple that they would both like. I have been looking for little simple projects to do for them that will get them to ask for other projects. I usually have a stack of the 20x20 Russian birch plywood panels from Menards for little projects like this. It is a simple and quick pumpkin cutout that can be decorated however you want.



I used a Amana 1/4 inch down cut bit, it is number 322 in carbide create. I ran the bit at 90 IPM with a 0.104 depth of cut. It cut great except it left a pretty frayed edge on the bottom. I think for doing simple cut outs in plywood I want to get a compression bit.



With it being 1/2 inch plywood and pretty thin it is lightweight. I was a little worried while removing the tabs and sanding because it is also very fragile feeling. I have uploaded the project to Cutrocket here. Its nice because it only takes about 10 minutes to cut so if you were wanting to batch out several of them it would be pretty easy.

8 Likes

Look up mooning monkey Aloha tattoo for a another adult wine rack. I couldn’t believe my buddy got one on his leg. I won’t link it for obvious reasons.

1 Like

I’ve been wanting to try out metal cutting for a while, but it’s pretty intimidating — a lot less forgiving than what I’ve tried before (wood, foam board, and plastic).

I decided to start out by carving some coins. At first I wasn’t sure if it was legal, but as far as I can tell, it’s only illegal to modify US coins to look like other currency — turning them into non-currency is fine.

I’m using nickels, because they’re thicker than any other common us coin. I took inspiration from this post for a coin vise: Work Holding Solutions: The Soft Vise for Engraving.

I modeled the vise in Fusion 360, with the diameter of the coin area slightly smaller than a nickel. That way I could use a flathead screwdriver to wedge open the gap, place the nickel in, and have it firmly stuck in there.

After a few prints to dial in the dimensions, I mounted it to the hybrid table on my Shapeoko Pro.

For this proof of concept, I wanted a simple design, and Halloween_JackOLanterns_1 from Design Elements was perfect. I used the default feeds and speeds for Aluminum in Carbide Create to face and pocket the design.

I screwed up the zeroing on the first try, but the second try went really well :slight_smile:

surfacing

mouth

With that success under my belt, I wanted to try something more complicated. I moved over to Fusion 360, and pulled the center design out of Celtic_Shield_2 in Design elements. I started by pocketing the flat areas with the 1/16" flat end mill I used on the first design, then moved to a 1/32" ball end mill for the details. The simulations were looking great:

However, in trying to dial in the feeds and speeds in Fusion, I actually broke both of the 1/16" end mills I had, so that design is going to have to wait until I can get new ones delivered :frowning:

snapped

10 Likes

Got mine finished. [Cutrocket link](https://cutrocket.com/p/6147a17087b06/)

I used the tombstone from the Halloween design elements.

For material I used a 2" thick sheet of Foamular from Menards. It was around 27$ for a 4x8 sheet. The size of the tombstone I made was 12"x15"

The Gator clamps worked great to hold it down. Probably couldve used longer bolts if I had them.
For bits I used
-RC-2243 1" spoilboard to clear out the main recessed in area quicker.

  • 1/4" Endmill to make recessed area corners sharper (optional step)
  • RC-1148 60 Degree V bit
  • 1/4" Endmill to cut shape out. Mine was not long enough to cut 2" , needed to use jigsaw and clean up with flush trim router bit at router table.


Cut pretty well at 100ipm and the Makita router at lowest setting. The fuzzy’s in the lettering cleaned up good using a toothbrush.

For paints I used. Was limited to what was left in stock at Menards.

  • Rustoleum bonding primer (not best choice, eats in to material but also gives weathered look)
  • Rustoleum chalked aged gray ( was only gray paint store had, does provide nice contrast to primer though)

Overall I think it came out quite well for my first try. No one will be getting up close and it looks good while standing a few feet away. Now to figure a way to mount to the lawn.


9 Likes

Try a helical plunge and adaptive tool path as nickel is pretty hard and I don’t know if my eyes are tricking me but it looks like the coin starts to lift out of the clamp slightly.

1 Like

I would just get 2 little pieces of reward from menards. They have little 2 ft pieces. Drive them into the ground about a foot apart and a foot deep then you can push the foam down onto them. Should be fairly secure. I might test it on a scrap piece of the foam first though.

Yeah, the pinch force of the plastic isn’t quite enough to keep the coin from moving if the mill hits too hard. For the next version I’ll add a bolt that pulls the sides together.

There’s also a little bit of flex in the z and y axes. I need to beef up the plastic, or maybe use some metal stabilizing plates.

The end mill I was using had way too much flute length (I originally got it for foam board). The new mills I have coming are nice and stubby, so they should have less flex and be less likely to snap.

You could also sand 1 side flat and use the super glue painters tape method and not rely on plastic clamping surfaces. Or possibly spray the plastic clamp with hair spray and pop the coin in for extra hold. Then use rubbing alcohol to clean it between coins. You will need to get it kind of wet and let it dry a few minutes but it works on bike grips so maybe it will help here.

1 Like

Alright, finished-ish project first.


Quick background time, I live in a underwater themed apartment dubbed “Poseidon’s Grotto”, the bathroom window in said apartment is lacking some privacy and could use a boost to the airflow. Cue the new Shapeoko!


After a quick mockup on Shapr3D of the overall dimensions I went to work with the actual design.
My idea was to repurpose the insides of an old window fan into a custom frame on one side, and some faux stained-glass (epoxy) on the other. Thus fixing both the privacy and airflow issues.

Awhile ago I had picked up some old oak flooring off craigslist that I decided to use.


I processed it first by running it through the table saw to clean up the edges.

I then jointed it with with my Shapeoko. I used my Whiteside 6210, with some help from the advice given in this post (feeds and speeds).

The wood was then glued up, and then flattened on the Shapeoko.


I think it’s about time that I learn how to tram my machine…
While the glue was drying, and the wood was being prepped I put together my design on CC.

I used the Flourishes_18, Sunfish, and Wave_2 elements. Now for the actual process, I had got so caught up in my Linear Algebra class that I forgot to take pictures from this step onwards… anywho…
Step 1: Pocketed out the fish, and corner flourishes leaving 1mm of wood as a backing. Then fill with epoxy. (lesson learned: I need smaller tools for more detail obvi)
Step 2: Vcarve (60 degree for the added depth) out the wave_2 patterns knowing that they won’t get revealed on the backside. Then fill with epoxy. Vcarve (90 degree for the narrow path) the inner details on the epoxied sunfish with a shallow depth. I’m pretty pleased with how that turned out. Although I did need to go back in with a knife to clean up the epoxy.
At some point in this process some of the epoxy soaked through and needed to be removed from the backside.

Step 3: I broke the design up into 4 quadrants to create a small ridge the ran top to bottom, and another left to right to give it a look of being held together with metal (as stained glass is). I Advanced Vcarved the four sections, and plan to paint the background a deep sea blue with black or copper for the “metal” ridge. (staining the rest of the exposed wood too for the full window into the sea effect)

Step 4: I flipped the bad boy over and pocketed out the epoxy allowing light the shine through (too lazy to re-measure everything, so I just made a large rectangle. I finished it all off with a quick sanding with the orbital sander, 80 grit to help diffuse the light, and to remove any over flowed epoxy. I did my best to stay away from the display side though (didn’t want to have to re-polish it).


Although it isn’t finished (hope that’s okay), I’m really pleased by how it’s turning out. I just need a little more free time…

Thanks for reading,
Wyatt

Sunfish Window.c2d (732.9 KB)

Cutrocket Link

11 Likes

Hi all! Got our Shapeoko Pro up and running Friday night after several issues. This was my very first project and went horribly wrong, but I learned a lot. I’ve been following the threads and see a bunch of first projects that are amazing, so I figured this might be a pick-me-up for anyone else out there struggling to learn how to use a CNC. Hope it’s ok that I’m posting a project that is going to be completely scrapped and restarted tonight!

I used the TX_Detailed.svg file to create the outline of TX, then out 2 Offset Vectors in the center so I can create a depression and to remove the inside. The goal is to have a picture frame of sorts that I can glue together. Inside of the outline, I am going to be making a Stained Glass piece of the MD state flag (my husband is from TX and I’m from MD).

Here’s a picture of it in-progress. As you can tell, everything went a bit haywire resulting in uneven lines, not everything being cutout, burn marks and lines in random places. On the bright side, I learned how to zero the machine and what to do if you pause or have to stop your project in the middle of it cutting out!

Here’s the “finished” project that will be repurposed for something else.

I’m going to try again tonight and will update if it goes smoother!

7 Likes

Hey guys! So I’d like to submit this entry, but, forewarning: I destroyed the project in the very last step… :confused:

My idea was to use the Carbide 3D vectors to make a clock design with a slightly different skull on every hour… I happened to have an old clock laying around with a neon blue backlight and a 245mm diameter piece of circular glass.

I used the Skulls category in the design elements page & picked my favorite ones. I recently purchased the Mc Etcher 120/90 degree dragbit pack, and was excited to find a fun use for them. I started by taking the clock apart, and masking the neon light with tape. I’m a spray painter by trade, so this was pretty easy.




I used rustoleum flat black to repaint the clock face. I used Carbide create to position 12 skulls at 30 degree increments. (360/12…) I’ll include plenty of pictures :wink:





I had a hard time using the default svg’s from the design elements page… I had to use the node editing function to make sure everything was closed & contained…


IMG_8808

Then I painted the clock hands silver for more contrast, and made sure my tool paths were alright.



I finished my design in carbide create, and used my pen-holder to do a test run on some posterboard to make sure the vectors looked alright. The pen holder design is actually what’s available on CutRocket: Simple Pen Holder by thefrenchwickler





I used my test run to position the glass face of the clock and started etching with the 120 degree drag bit:



I made sure to flip my image horizontally by 90 degrees so the etching would be on the backside. It looks better that way, trust me. :ok_hand:

After the etching was complete, I reassembled my clock.



However, I cracked the glass when re-tightening the screws.

Ughhh so annoying!



The project would have been “perfect” if it weren’t for the glass cracking. :frowning:

Oh well. Lesson learned? I still think this was an improvement to the original design! Now I just need to find another piece of glass with a 250mm diameter… :sweat_smile:

then it’ll be good to go! :metal:

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