Laser Masking Scrapers and Holder

Ever since I got my first laser over a decade ago I have been using old gift cards as a scraper to help me lay down and adhere masking prior to lasering wood.

After a couple of years, the card in use would eventually break from repeated flexing.

After the last one broke I had an idea about maybe something better. Plastic putty knives as scrapers.

I ordered a cheap 6 piece set from Amazon. I figured multiple sizes would come in handy depending on how big a piece of wood I was masking.

I fine tuned them by using a sanding block with some 220 grit sanding paper. Slightly dulled the scraper edges and slightly rounded the corners. Also removed any burrs. This was done to help prevent the scrapers from digging into the masking.

Now I needed a handy way to store them that also left them easily accessible.
Decided to laser craft an upright storage rack. Used the Boxes.py website to design a finger joint basedbox to be the starting point.

Prototyped the design in cardboard. Which was good because I had planned on all the scrapers just hanging from the slots, but I didn’t initially realize that the shoulder of the smallest scrapper was smaller then the base. So that scraper wasn’t going to hang. I ended up having them all just slightly hanging or touching the bottom. I then had to add some internal slots to keep them all straight up and down.

Here are my Boxes.py settings for the final plywood version. Note the yellow highlighted areas are what I changed from the default values.

Also, because I abhor a blank laser cut box, I had to add some engravings. :grin:

Assembled the walls and then attached them to them base using taps from a soft dead blow hammer on the bottom.

Glued in the bottom slots and glued in some of the pieces cut for the slots to the corners to act as standoffs to support the middle slots.

Then glued in the middle slots.

Added the top for full assembly.

Love how it turned out. :smiley:

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You did some edgy modifications to those scrapers!
Great job on the project!

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I love ‘boxes.py’, I wish I could find a diode laser that would work on my 4030 router. It would be an easy adaptation with a 3D printed mount.
You imported the .svg into ‘boxes.py’? or did you import it into your CAM program? I would be using it with Fusion360…

I generated it directly as a svg file and imported into Lightburn.
Boxes.py lets you generate the files in a variety of formats.

Right. I imported it as a DXF into fusion, but I was wondering about the artwork. When do you import it?

Ah, all the graphics were added after I imported the boxes.py file into Lightburn.
The Celtic knot trees for the sides was some clip art I found online and imported into Lightburn. I then ran a Trace on the image to generate a vector version. Not sure of the work flow for Fusion360.

Simular to how it might work with Inkscape? Importing a PNG or BMP, copying it, and making a path trace?
Im trying to learn these methods…
So far Ive found that I can import .svg, and .dxf into fusion, But making finger joints with a router is no good cause the bit radius makes post processing tedious, as I have 1/8" and 1/4" bits, thus the desire for a “high power” diode laser to add to my machine.
I haven’t quite mastered the Inkscape workflow, but I have made it work a few times with a .bmp to an .svg.. For a logo that I imported into fusion and routered into Acrylight.

Yeah, similar to Inkscape I believe.

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