Denim fabric on the Spark or Aura

There’s not a lot of information available on the Spark with it being so new. I thought I’d share my test run from this evening.
The denim I used is a medium weight cotton blend. For the thickness setting, I entered 0.04" (about 1 mm).
I chose a series of settings as indicated in the photo. Speed/power/passes. The lines per inch was 135. The graphic on the right was done using 200/2/2x and took about 30 minutes to complete.

denim on spark

The last test setting (100/5/1x) resulted in cutting completely thru the fabric in places. I would imagine it would have cut clean through the entire printing at a lower speed, higher power or a 2nd pass.

Thanks!

17 Likes

Thanks for sharing the results of your tests. It is always good to have a starting point for settings with a new, non-Proofgrade material.

9 Likes

This is an awesome test, like @rappee25407 said thanks for posting!

Since the Aura and Spark have the same laser these settings should work just as well in the Aura I think.

A lot of times when you’re engraving on cotton-based materials the second question is how well does it stand up to being washed? Have you had a chance to test that yet? I am curious to know if the color stays the same after a washing.

12 Likes

Thanks! No, I haven’t had a chance to wash it yet. I’m sure someone is doing a load of laundry today in my house. I’ll have them toss it in.

9 Likes

Thanks for sharing your results. It helps us all. :slight_smile:

6 Likes

100% this! I added Aura to your title to make it easier for people to search for.

This is grand! I await your laundry test conclusions! :smiley:

4 Likes

Laundry update!

IMG_0867
IMG_0866

Here are the back and front views after the swatch was washed. I like how the image turned out, however, I don’t think the 2nd pass was necessary considering the cut is a bit visible on the backside.

In case it helps anyone, the fabric is 56% cotton, 19% polyester, 14% lyocel, 10% rayon, 1% spandex.

10 Likes

Thank you @deirdrebeth ! I have posted the laundry results.

2 Likes

Hey that held up pretty well in the wash. Which one do you like best from the top?

1 Like

I’m thinking the 2nd one. Speed 200, power 2, 1x pass. I think 2 passes cut this fabric a little too deep.

6 Likes

Yeah, it looks like 200/2/1x is the sweet spot for that textile. Nice testing.

5 Likes

@suzieg1969, if you haven’t taken a look at the spreadsheet of Aura settings, it would be really cool if you added your settings to it:

3 Likes

If you can manage a bit of polyester blend instead of pure cotton, the same low power that still broke the cotton threads would just melt the polyester into the cotton and not weaken it so much.

2 Likes

It’s already a blend, did you mean more polyester than that?

3 Likes

Enough polyester will seal laser cut edges so I guess not in that case. If the burnt edges unravel and fall apart then it is not sealing the burnt places.

2 Likes