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1
BenCutLaser / Re: 2.0 watt A5 BCL engrave test burns (OPEN)
« on: December 10, 2017, 06:13:47 PM »
@krypton

Your test pattern is very poor. I strongly suspect it is your wood. It is too soft and porous. You need to be using a harder wood. Otherwise you will never get a good engraving.

The BenCutLaser website shows you what a good test pattern should look like: http://bencutlaser.us/load-test-pattern-tab

The laser will support speeds much higher than 1200. You need to focus on getting a good dark burn line test. Then work on getting a good light line burn test. Then burn a test matrix and see if you can get 16 squares similar to the link above.

So far I have not see you using any good hard woods. Your test pattern wood I can see deep surface 'valleys' in the surface of the wood. This is not a good wood to be using. Plywood has a pretty flat constant surface for laser burning. While it's not the best wood to use, it is cheap and it will laser 'ok'. The harder the wood the better the results. I say this more than one time on the BCL website.

Your last photo shows no light burning at all...it all looks pretty dark. 1200 is way too slow for a light burn. Try 2400 and bump it up 100 at a time until you get a good light burn. Refer to the images in the .PDF or .RTF engraving documents so you know what to look for.

2
BenCutLaser / Re: 2.0 watt A5 BCL engrave test burns (OPEN)
« on: December 10, 2017, 12:31:44 PM »
Is this balsa wood? It looks extremely porous...not good for engraving.

Can you switch to plywood? This will give us a base wood to work with.

Also can you circle your 16 square test matrix...I can't tell which burns are what. I'd like to really see a close up of your matrix burn.

3
General Discussion / Re: Compressor for direct air
« on: December 09, 2017, 06:48:24 PM »
I bought this one on Amazon and it works perfectly fine:

https://www.amazon.com/gp/product/B06XDKRYC6/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

4
BenCutLaser / Re: BLC does not respond after start
« on: December 07, 2017, 06:30:19 PM »
What's steps can I take to try and duplicate your problem?

What controller board are you using?

What version of Grbl are you using?

What version of BCL are you using?

Did you read the trouble shooting tips here: http://benboxlaser.us/index.php/topic,861.0.html

5
BenCutLaser / Re: 2.0 watt A5 BCL engrave test burns (OPEN)
« on: December 07, 2017, 06:25:49 PM »
Is that your test pattern matrix? I can't see 16 small squares of different shades? This Gray scale? Your test matrix should be rectangular in shape...I don't see that in your test pattern.
This might be due to your beam diameter, which is probably fine, but I don't see any shading here at all.

The photo of your engraving on the MDF material looks extremely coarse and rough on the surface. Is that the case or is the photo misleading?

If the surface is that coarse, your not going to get good results.

6
BenCutLaser / Re: 2.0 watt A5 BCL engrave test burns (OPEN)
« on: December 06, 2017, 05:39:44 PM »
I would still like to see a photo of the test pattern matrix you are using to calibrate. If that looks 'ok' then your engravings should look 'ok'. You're not getting the results you are expecting on your engraving(s) so I'd like to see what your matrix test pattern looks like.

7
BenCutLaser / Re: 2.0 watt A5 BCL engrave test burns (OPEN)
« on: December 06, 2017, 02:56:31 PM »
The values get saved into the controller board when you run them, so you only need to set the 1.1e settings (clicking the link) one time.

8
BenCutLaser / Re: 2.0 watt A5 BCL engrave test burns (OPEN)
« on: December 05, 2017, 07:09:09 PM »
Did you set the BCL 1.1e Grbl settings by selecting 1.1e and clicking the link? See attachment.

I don't see in your Grbl settings that you did this.

9
BenCutLaser / Re: 2.0 watt A5 BCL engrave test burns (OPEN)
« on: December 02, 2017, 07:38:22 PM »
See attachment...

10
BenCutLaser / Re: 2.0 watt A5 BCL engrave test burns (OPEN)
« on: December 02, 2017, 06:40:54 PM »
Can you post a photo of the engraving?

11
BenCutLaser / Re: 2.0 watt A5 BCL engrave test burns (OPEN)
« on: December 02, 2017, 03:17:31 PM »
You're using Grbl 1.1e right?

>Wonder if I can re-due the B/W image in a grey scale format, try I guess.

I must be mis-understanding what you mean. It makes no sense to me to try and do a B&W image in GS.

12
BenCutLaser / Re: 2.0 watt A5 BCL engrave test burns (OPEN)
« on: December 01, 2017, 01:53:54 PM »
Have you read the laser tool calibration and engraving tutorial here: http://bencutlaser.us/welcome

13
Z Axis / Re: Adding z axis driver to stock Mana SE
« on: December 01, 2017, 08:36:24 AM »
While my BCL supports Z axis cutting, I have found it impractical* on lower powered laser machines, to cut anything thicker than 3mm. Why? Because of the number of passes it takes to cut through 3/8 inch thick plywood wood, for example. Between 100 and 200 passes (depending on your laser power). Thus, I don't think this is practical, as it takes a long time. Cutting anything thicker than 3mm is really best done on a 40 watt C02 laser machine.

* Impractical with laser power less than 3.5w.

14
Trouble Shooting / MOVED: 2.0 watt A5 BCL engrave test burns
« on: November 30, 2017, 08:24:00 PM »

15
BenCutLaser / Re: 2.0 watt A5 BCL engrave test burns
« on: November 30, 2017, 08:23:42 PM »
You're correct George, 30% power will not light up the laser beam all the time. For engraving, you need to be using 100% laser power. Adjust your speeds as needed with that power setting.

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