Categories
Uncategorized

Screen Printing Demo

ground tracking station

I did a screen printing demo class at Milwaukee Makerspace, so that other members can make use of the awesome equipment we have available…

I grabbed this fine piece of art titled ground tracking station from OpenClipArt a while back, and figured it would come in handy…

Krambo Industries

After a number of edits to make it “cut-friendly” and adding my own text, I used the Silhouette Cameo to cut some vinyl to use for the mask…

Vinyl prep

Since we’re going to stick the vinyl on the back side of the screen, make sure to reverse your image before you cut it! (You can do it right in the Silhouette software.)

screen back side

The vinyl gets attached to the back of the screen. I don’t have a photo of the transfer paper, but yes, I needed to use transfer paper. Getting the vinyl to stick to the screen can be tricky! Go slow, very slow, and make sure it transfers ok. It may not stick very good (yet) but it will work.

Once the vinyl it in place, tape it good on at all four sides, and then add more tape. (It’s clear packing tape, hard to see in the photo.)

screen front side

Flip the screen over, and press down on the screen, so it will stick to the vinyl better. Add more tape. Really, preparing screens involves a lot of tape. (The white thing on the screen is just the backing of the vinyl, which I used to save a bit of tape… It’s taped in place. Yes, more tape!)

Printed shirt

It was the first time screen printing for everyone who attended. Usually at least one or two people have had some experience (usually in high school) but this time no one had done it before. Here’s the shirt Asim printed. It turned out good!

Printed shirt

While I only talked about printing light ink on dark shirts, Andrea brought a black shirt, which we printed with dark red ink. She said she wanted to do a bleach treatment on the shirt, which should lighten up the fabric but not the ink. Hopefully I can get a photo of that when it’s done.

Sample print

I did a print on paper as well so I could add it to the “Wall of Stuff” at the Makerspace.

After I cleaned everything up I had a member ask when I’d be doing another demo/class. As usual, I don’t know the answer yet! Usually when enough people ask about it I do it. So, yeah, I’ll do it again, at some point.

(Here’s a blog post about a previous printing that I did.)

Categories
Uncategorized

Nuclear Fuel Cell

Nuclear Fuel Cell

While Kathy was working on some top-secret project involving a giant robot I decided to tear apart an old laser printer that was in the junk pile at the shop. Inside I found a wonderfully green drum, which I thought would make a nice “Nuclear Fuel Cell” prop. Of course it needed some vinyl added to it…

Silhouette

I used Inkscape to design my labels. I prefer to use Inkscape to design things, then export a DXF and import that into the Silhouette software. If you design things in the Silhouette software (at least the free version) you can’t export it for use elsewhere.

Silhouette

Oddly enough, the circle part of the radiation symbol got lost. (It’s on the back, so you can’t see it in the photo above.) By the time I noticed it was too late to redo it because I wanted to crank this out in fast.

Anyway, if you stop by Maker Faire Milwaukee on September 26th & 27th, 2015 at State Fair Park, you might just see this Nuclear Fuel Cell in action…

Categories
Uncategorized

Imperator Furiosa’s Skeleton Arm

Imperator Furiosa

By now I have to assume you’ve seen Mad Max: Fury Road, and you’ve probably said to yourself “Damn, Imperator Furiosa is pretty badass!” and then you remember that sweet skeleton arm on the door of the war rig and thought “I want one of those!” (Okay, maybe it’s just me…)

Imperator Furiosa's Skeleton Arm

Well, since I was unable to attain a high resolution image of the door of the war rig, I made do with a low-res version I found on the Internet, because that’s where you find pictures of things…

Imperator Furiosa's Skeleton Arm

Anyway, I traced the arm in Inkscape and made a nice vector image suitable for vinyl cutting. It’s about 18 inches long, so if you’ve got a Silhouette Cameo like we have at Milwaukee Makerspace you can use the 12″x24″ cutting mat, or just cut without a mat. The DXF file below should import into Silhouette Studio easily.

Or maybe you want to use a laser cutter or some other CNC machine to make an arm. There’s a vector PDF file, and the original SVG file you can easily edit.

Some people assume I drive an orange Honda Element, but really it’s a Honda War Rig. Special model, they only made a handful of them. (My old car was a V8 Interceptor. It was totaled in an accident.)

Honda War Rig

Honda War Rig (Close-up)

Maybe you don’t drive a Honda War Rig. Well, you can still get in on the fun with your Mad MacBook Pro. Just size the vinyl appropriately and stick it on the lid. Can you handle the “BADASS OS X Word Documents and Excel Spreadsheet” editing that’s about to happen!? I don’t think you can!

Mad MacBook Pro

Download the files and have a good time.

Categories
Uncategorized

3D Printer Malfunction

It has been __ days since the 3D printer had malfunctioned

I had a few responses to the new sign I made for the workshop. I cut some black vinyl to stick onto a piece of scrap white acrylic I had lying around.

It has been __ days since the 3D printer had malfunctioned

Of course more than one person joked that I could just permanently write a zero in place, or perhaps change the “days” to “hours” or even “minutes”.

If you want your own version, you can grab a file and have at it. Download an SVG, PDF, or DXF.

Categories
Uncategorized

Quick and Dirty Screen Printing

Hey, this post is only four months late! I had these files sitting on my desktop so I thought I should do something with them instead of just deleting them. I’ll explain a little bit about the process of preparing artwork for screen printing in a timely manner. (Unlike this blog post.)

Back in May I did a screen printing demo at Bay View Gallery Night at Milwaukee Makerspace, so I figured I would make a new screen. I also figured I would use the vinyl method.

Art

I started with some weird drawing of a TV monster with the letters “BVGN” using a Sharpie on scrap paper.

Scanning

I scanned it in as a black & white image at 600 dpi and saved it as a TIFF file.

Raster TIFF file

The resulting scan looked like this. No grey tones, just high contrast black & white.

Converting

I then imported the (raster-based) TIFF file into Inkscape so I could convert it to vector artwork. The “Trace Bitmap” command lets you do the conversion.

Vector Art

Here is the artwork as an outline. Vector artwork is needed for the vinyl cutter part of the process. Typically there would be some cleanup after the conversion process, but I was doing this all really quickly and didn’t have time for perfection.

I didn’t get any photos of the vinyl cutting and screen prep part, but it’s explained well in this post and a bit in this post.

Screen Printed

For the event, I tore pages from an old book on video production and used the pages to print on. I wasn’t after amazing quality with these prints, I just wanted something to demo during the evening. I got a few clogs since the screen sat around with ink in it for over five hours, but that’s how these things go.

The nice thing about using vinyl is that it’s fast, and if you’ve got an idea you can go from a hard-drawn image to screen printing it in a matter of hours. The vinyl method doesn’t work for all artwork though, but that’s the trade-off.