Multipass

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21

That sounds very intriguing, looking forward to your testing!

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22

Here it is! Maybe I can even find the same file to test with =)

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23

Looks like someone posted it on Thingiverse.

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24

NICE!

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25

So until the official GF 3D engrave is available, we, in theory, should be able to approximate the same thing by deciding how many passes to do and what maximum power each pass should be done at. As is, the GF is now capable of varying power according to gray scale of each “pixel” in the file?

Sorry if I’m being dense - I don’t do distance learning well.

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26

You arent being dense, because that sounds exactly right. That is what is occurring on a single engrave basis, so I will just need to do a few passes and see what happens. @Rita was kind enough to send me some recommended power levels and speeds, so I have a great jumping off point!

Luckily I happen to have a bunch of maple slabs sitting around leftover from another project. Sounds like those are the best thing to use! Game on!

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27

Me too! GF#1 will be out of town for a couple of days, so I’ll have plenty of alone time with GF#2 =).

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28

1095×456 211 KB

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29

Thanks for the explanation. The functional concepts behind 3D engraving have been bugging me for a while but it’s starting to make sense.

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30

I just had a scary thought… As you said, they’ve already figured out the settings. Does that mean one won’t be able to 3D engrave non-Proofgrade materials?

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31

Nah we can 3d engrave. We just need to manually set the speed and power. Ive been testing 3d engraves all night as a matter of fact. On non-proofgrade material…

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32

Thanks for that!

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33

Have you done images engraving, or just text and line drawings? I have a sheet of that from laserbits, saving it for GF(don’t want to wste it on my K40).

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34

How have you been going about (if you have been) cleaning up the engrave. That trotec video mentioned the clean up , but not the method. Have you tried any of the chemical ( vinegar, orange hand cleaner, etc)methods to clean up the black?

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35

Two names for the same thing. The actual implementation is a little more complicated than just varying power, though.

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36

I asked the FSL people if the Muse did 3D gray map engraves. They said it does, by running multiple constant power passes according to the levels of gray. It appears that the Forge does it more intelligently than that.

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In my experience, orange hand cleaner is a miracle worker! Takes a bit of scrubbing, but you definitely see the difference before and after cleaning.

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38

So far ive been using really soft maple. It hasnt even gotten close to charring, but thats because Ive been running it at top speed. Im still working out the best settings to use in the GF as well as grayscale color range to get the best quality out of the engraves. Im getting close. Once I get a good one ill post it up. Might be later tonight if I get lucky.

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39

Thanks again for all your informative posts. You’re making us all experts by osmosis!

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41

OK, that sounds good. Could we manually duplicate the results of the “production” GF 3D engrave by appropriate choice of settings (trial and error, if necessary) or are there other features built into the GF 3D feature, like variable cutting speed, number of passes, focus, etc.?

By “production”, I mean the way that GF releases it to owners as a working feature, undersanding that future improvements may be possible or even likely.

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