Spooky Season

Well, September is here and my wife has declared it’s officially spooky season and time to start decorating for Halloween. Last year I had offered to cut some tombstones for her on my LR4 but we never had time to actually do it. This year she looked at the offerings at various stores and decided she wanted me to move forward with doing some for her.

We started by tapping my daughter to design them. She’s really artistic and we wanted to get her involved. She came up with some nice designs…but they were bitmap - she’s not very experienced with vector art yet:

I used a free bitmap to vector tool (don’t remember exactly which one - most didn’t work or gave terrible results or weren’t actually free) and fired up Estlcam.

Got to try a few new things. I had never done pocketing with islands before, and I’ve never done toolchanges - took me a bit to figure out the process for islands but eventually I had previews that looked accurate. So time to dust off the machine and get it going again.

I had planned ahead by turning on the AC in the office the night before - it’s still in the low 100f range here and humid now as well so the garage isn’t a lot of fun. But thankfully letting the AC run over night it was actually cold in there by morning. By 11AM it was uncomfortable again and we decided to be happy with the 3 we had finished instead of digging in on the next 3 which are considerably more complex (I’ll share them later if we finish them)

Some of you may remember me reporting some issues with my LR4 recently. So first thing I did was some snugging of screws. Which seemed to make a big difference. Except…once I got the wobble out of the beam I found that the core IS loose on the rails now :frowning:

I tried snugging up the adjustment bolts but it wasn’t able to take all the slop out. Looks like I may need to print a new core. Probably in PET-CF this time due to the heat here in Southern AZ.

But for artistic foam - I figured it was good enough. These don’t have to be super accurate and foam is really soft and easy to cut.

So full send:

First one went well! No issues at all really! Well, ok one issue and it was my own fault I noticed that the vacuum wasn’t getting the “chips” up and my vortex was sitting crooked - and when I tried to make sure the lid on the bucket was tight sawdust went flying everywhere. It was then that I realized I had apparently hooked the hose to the exhaust on my shopvac instead of the inlet. Whoops…that’s a mess I could have lived without :frowning: With the hose moved dust collection was working as expected again.

Second one got fancier - I needed to do a tool change between a 1/4" and 1/8" bit since I wanted the larger 1/4" for big areas and needed the 1/8" for the detailed text. I had never done a tool change before but finally felt up to it.

Tool change went smooth as could be! Nice! Not so scared of that now!

And third cut:

Even the 1/8" bit was too big to cut some of the detail on the text…but my daughter was having fun doing some additional carving with exact knives and working her magic with paint.

Before she started painting I warned her that spray paint would probably not play very nice with the foam…but she used that to her advantage to make them look even better.

End result once she was done painting them:

We’re still going to add some more foam on the bottom as bases and the next 3 she designed are far more complex and 3D so they’ll be a lot of fun if we find time to make them the next few weeks.

But just these 3 are so much better than the ones from the stores - they’re bigger I used less than 1/3rd of a 4x8 sheet of foam which cost less than buying 3 of these at a store would have cost.

Now to add some stakes and get them out in the yard!

Those are really cool. Great job!

They all turned out really good Jason. Your daughter is a great artist!

Really nice!

Update - we did the other 3 this weekend. They were actually easier to deal with than I thought and I wound up not having to make them out of multiple pieces.

I did wind up having to redo the CAM on them because for some reason I thought the foam came pre-scored in 18" widths but it’s actually 16" Oops.

I think I may have skipped a toolpath on the D by mistake…whoops.

And all painted and in the yard:

I had enough foam left over I decided to finally make my wife the XL chainsaw murder cat she requested. The very first thing I cut on the machine was a small plywood one that’s still over our back door. But the files I found included a few other options like kitty with a cleaver and chainsaw. She really liked the chainsaw and wanted a big one for the front yard to lurk in the bushes. But she wanted it BIG so I knew I’d have to cut it out of multiple pieces. And didn’t feel like figuring out how to do that yet.

Well, with enough foam left over yesterday I decided it was time. It’s “ok” but I’m not happy with how it came out:

I had to cut it into 5 pieces to fit the foam/machine. There has to be a better workflow for it than what I came up with. The files were STL’s so I had to convert to vector outlines…And I had to figure out how to cut it up. I considered a couple of software options but settled on Fusion since it’s what I’m most familar with - but man was the workflow tedious.

I started by doing a sketch with a box for the overall dimensions I wanted and layout lines every 16"…I then changed them to ever 15" because I wanted a bit of wiggle room on the 16" wide pieces of foam.

Next I imported the STL and converted it to a solid. Then using that first sketch I cut the solid into separate bodies which I then created sketches from projecting the body into the outline which I was finally able to export as DXF. Bleh…so many tedious steps.

And didn’t like the results. The 3rd cut wound up too far to the right where the wrist was so it was a weak spot to join two pieces - and the saw was too tall to fit on my machine anyway…and had a little piece cut off that would have been a pain to re-connect.

So I shifted the cut over making the main cat body narrower so I had a nicer spot to join the two pieces - and cut the saw in half to make it shorter and fit on my machine. The biggest pieces were 34" tall which used almost every bit of space I designed into my machine in Y.

And that worked - but…cutting the wrist/lower chainsaw piece the power cord for my router got snagged and caused it to miss some steps :frowning: I didn’t know WHY it missed steps so when I went to cut the next piece it ALSO missed steps which was when I finally spotted the problem. So the chainsaw has a notch in the tip. The first piece that had flaws I want to recut…but don’t have any big enough pieces of foam left and didn’t feel like going back for another 4x8’ sheet of foam (They also sell 2’x2’ pieces but that wouldn’t have been big enough without adding yet another cut which I didn’t want to do either.

So - it’s not perfect…my wife still loves it. But I want to redo that one section next weekend.

The plan is to join the pieces, paint it black, put some red cellophane behind the eyes and light it from behind with a spotlight.

Looking good. I’ve been wanting to do some headstones for a while. Maybe this will be my motivation to finally do it. :grin:

Maybe you can use wood filler or Bondo putty to fix it so you don’t have to recut the part?

If I had filler or bondo on hand I probably would have already :smiley: (Though I’m not sure if Bondo would actually work on pink foam…or just eat it away like spray paint does.)

And the handle cutout on the bottom of the chainsaw isn’t quite right due to the offset…I mean…no one but me will ever see it…but…I’ll know and it will bug me :smiley:

Honestly - black paint would probably hide 99% of the sins and add in the backlight and it being seen primarily at night and I doubt even I will notice most of the miscuts.

But I kind of like the excuse to get another big sheet of foam for even more projects :wink:

Looking good!

I paint my stones with fluorescent paint and put uv lights on so they pop at night…

That looks great!

Thank you for sharing these @jhitesma. I cut out 3 of them today. Would you mind sharing the black and white graphic of the other 3? I used MillMage to convert the black and white to a vector image. I applied a V-carve to the image and did a profile with an 8mm offset to cut them out.

I didn’t even stop to think anyone else may want to make their own :smiley:

Here’s a google drive link with all of the original PNG’s, the SVG’s I generated from them, the gcode I used, and for the last 3 the Estlcam project files as well (Apparently I didn’t save project files for the first 3)

I really wanted to dig into MillMage this weekend - my demo is about to run out and I haven’t even finished setting up my machine or tools yet :frowning: I wanted to see how it does at converting to vector (looks like it did better than what I used - or you had finer bits or made the stones large.) And I really wanted to start playing with carving - got some new tapered ball nose bits that showed up Saturday.

But…my weekend plans got reset Sunday morning when I went in the garage and found a puddle :frowning:Thought my drinking water pump and started leaking again…but no - it traced back to the water heater this time.

I thought it was the expansion valve letting lose some pressure at first but the I saw the base where it sits is wet :frowning:

moved a bunch of stuff and the whole thing was soaked:

That stand is just 2x4’s with drywall (though it did have 2 layers of 1/2" ply for the top) and every bit of it was totally soaked. My fingers went through the drywall like playdough.

Inside was something far scarier than the tombstones…black mold everywhere and standing water :frowning:

So spent most of the day tearing that out, cleaning, bleaching…and then just switching to a metal stand so this won’t happen again. But ate almost my whole day not only did I not get time to play with my Low Rider…the table for it is now completely covered with a bunch of stuff I had to move to get access to the water heater. Tonight I get to try and re-assemble the garage. Maybe next weekend I’ll have some time to try MillMage…though I’ll probably have to just buy it now since my demo window is almost certainly about to close…not a big deal as I’ve been planning on it anyway. Just may take a little longer after having to buy my second water heater this summer (had to replace the one in my rental property last month!)

Thank you for sharing the link. I tried accessing it and it said access denied. It sent you a request.

MillMage does a really good job of tracing and the node editor is very good also. A lot more like Illustrator than InkScape. The Rent tombstone is 10in x 10in. The Claude and Sick tombstones are 23in x 17in. I used a 1/4" 90° vbit. It was a lot of fun cutting them out in foam and being able to use much higher feedrates. You can extend the trial period on MillMage once I believe. You should try tracing them and see what you think.

Sorry to hear that your water heater sprung a leak.

Whoops, thought I set it so anyone could use the link but apparently that didn’t actually save. Should be public now…just in case it changed with the permission update here’s the link again:

Yeah, i’ve been looking forward to trying it out. I just had a 1/4" endmill and a 3mm end mill for mine so the detail was a bit limited. I have the 45degree v bit Ryan sells in the store but haven’t set it up in estlcam yet - keep forgetting I have it :smiley: Foam is fun running so fast :smiley: