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Messages - Administrator

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1
BenCutLaser / Re: BCL program hangs (OPEN)
« on: Today at 08:25:15 AM »
Back to my problem.
Of course, "sleep" is off, cutting in two turns is a good idea.
In truth, this material is a Finnish 6-layer airplane quality plywood
I have an EleksMaker 3.5 W laser diode.

What is the problem?

BTW that second photo attachment you posted: your rounded rectangle test shape burn line looks very 'fat'. I would say you still do not have your laser beam focused correctly. If your problem is that you cannot cut this wood, that is the reason.

>I started cutting, estimated time 2 h 50 min

Started cutting what? Are you using a dxf file?

I'm really having a hard time understanding what problem you are trying to solve?

Please follow these steps and report back: http://benboxlaser.us/index.php/topic,1128.0.html

2
CAD Software / Re: Fusion360 Workflow
« on: February 19, 2018, 08:31:47 AM »
You can use any CAD software you want -- but -- Fusion 360 is massive over kill. It's like someone who wants to learn to fly and starts off using a B-747 jumbo jet. It will work, but it's a very hard way to do it.

Let T2 generate your g-code because that's what it's designed to do. Do not need Fusion 360 to generate your g-code.

I'd suggest using one of the free CAD programs that can save to DXF directly. QCAD, LibreCAD, NanoCAD and others, are out there and they are free to use.

So, in the end, your best route to go would be to use a free CAD program to generate your DXF file and then load it into T2 to generate the g-code and send it to your laser machine. Simple, easy solution. You don't need to learn to fly a B-747.

3
Regarding your _none_ dxf file. Paul did a deep dive on this file and here is his analysis:

Itís likely this specific DXF file.

If you load it in and then select each line in the list box youíll see duplicates of the lines on the canvas. For example, the top line is both Line0046 and Line0031.

So I think the reordering (inside BCL) is working but when you click on the line itís sometimes going to the other copy of the lines than the one you reordered.

4
Works perfectly in BCL.

Nice conversion @Zax.

5
>but not automatically in the correct chronological order.

Correct. BCL is not a mind reader. How would BCL know how YOU want the order to be?

The order the drawing objects appear in the toolpath listbox in BCL is the order in which they were drawn in the CAD file. If you downloaded the file from somewhere then you would have no idea what the order is of the drawing objects. CAD programs have short cuts and helper methods to help you draw a certain object, therefore very often objects are drawn out of order.

BCL has no way to know what order you want drawing objects to be in. But BCL gives you the tools to put the drawing objects in any order you desire.

>i need to reorder every so often the orientation of arcs.

Yes, that is correct.

>sorry for the confusion: they are spot on, but they are separate elements instead of one polyline which would already solve my problem.

Yes, that is correct. Polylines are the best drawing object choice if possible.

>Find attached two samples

One of the files is completely unusable in BCL. How were you able to load it in and use it? What version of BCL are you using?

Have you seen this video: https://www.youtube.com/watch?v=1wuEEdUmn7A&t=0s&index=3&list=PL1ApZWLk0_MpBVWumCXkfenyruySqjw89

Using your _none_ dxf file I was not able to use the re-sequencing tools inside BCL (as shown in the video) to quickly re-sequence these drawing objects. I will dig deeper into this and try to determine if this is a BCL problem or a corrupt dxf file. I'll post my findings here as soon as I find out why.

6
Drawing Block Full dxf file has Insert objects which are not supported by BCL.

See attachments.

Note Setup tab to check for valid drawing objects: this file has 0 supported drawing objects. I'm not sure if those Arcs are Inserts or not or if the file is corrupted and reporting bad information. In either event, BCL cannot use it.

7
BCL can re-order any drawing objects including Arcs.

BCL can change the direction of Arcs so the laser will burn all of them in the same direction correctly.

Your attachment showing arcs not connected look connected to me. Where are they not connected?

Your Catia export looks like a very old export: year 2000. Solution: do the export since that's all Catia seems to support. Then open the .dxf file in a modern (free) CAD program such QCAD or LibreCAD or NanoCAD and then so a Save As into a more recent dxf format, such as R18 up to R27 or higher. R18 is year 2004 and is the oldest Release format BCL can read. But always save as in the latest Release format your CAD program offers (QCAD, LibreCAD, etc).

Then BCL will be able to open the file. If you still have trouble with the file, please post it here so I can have a look.

8
BenCutLaser / Re: BCL program hangs !
« on: February 13, 2018, 08:04:47 AM »
Imre,

1. You need to be using the latest version. I don't support past versions of BCL.

2. Make sure when you are doing a laser job that you do not use BCL to do anything else. BCL needs all of it's CPU and memory to focus on sending g-code to the controller board. So leave BCL alone and let it laser.

3. It does not sound like you have your laser focused at all. 2mm wood, even hard wood, should not take 50 passes! What wattage is your laser diode? Post a photo of your laser focus line please.

9
BenCutLaser / Re: Speaking of re-sizing windows...
« on: February 13, 2018, 08:00:03 AM »
The design is that you can change the left hand pane width (the laser tools) and the right hand pane width (the toolpath listbox) and thus end up sizing your center work area as a result. While that might seem to be an odd way to size the 'work area', it was done for a reason.

10
BenCutLaser / Re: Saving resized windows? (OPEN)
« on: February 13, 2018, 07:57:14 AM »
The attachment I showed in my last post shows that vertical splitter, but you don't have to put the mouse over it at all. The mouse won't work to drag the vertical splitter left and right (which how you normally would use a splitter). Instead, you have to click into the toolpath listbox to select that component, and then you can use the ctrl-left and ctrl-right keys to move the splitter.

11
BenCutLaser / Re: Saving resized windows?
« on: February 12, 2018, 08:27:11 PM »
You're probably thinking of Ctrl-Left or Ctrl-Right arrow keys that will slide the vertical bar (see attachment) left and right to re-size it. All other form controls you can manually mouse drag left and right adjust their widths.

12
T2 Engraving / Re: Adjustable Z axis Module Motor
« on: February 12, 2018, 02:10:15 PM »
Grbl 1.1e will work fine.

13
General Discussion / Re: Z axis
« on: February 12, 2018, 02:08:26 PM »
See if your laser machine can process the attached g-code file. Use any software that can open a file and then send the contents to your laser machine. Universal Gcode Sender, T2, BCL and some others will work fine for this test.

This g-code burns a small square in 4 passes with a drop down in the z axis with each pass (2nd, 3rd and 4th passes).

You should be able to see and/or feel the z axis head dropping upon each pass. If it does, then your setup is OK otherwise something is not correct.

I generated this g-code using BenCutLaser (BCL) and developed the z g-code using a converted 3D printer z axis head I turned into a laser machine, so I know it works fine. If your z head is setup correctly it will burn OK for you on your laser machine.

14
BenCutLaser / Re: 2.0 watt A5 Gray Scale Test Burn Problem (OPEN)
« on: February 07, 2018, 03:57:58 PM »
I've had to use speeds as high as 5000 to get the light burn look I was after. Obviously, the speed depends on what kind of wood you are using.

15
BenCutLaser / Re: 2.0 watt A5 Gray Scale Test Burn Problem (OPEN)
« on: February 07, 2018, 08:14:16 AM »
>but the edges do not look crisp.

You guys are spending too much time worrying about the edges. This is a test burn only. I will repeat myself: do not worry about the ends of the test burns.

1. Get your dark and light single square burn speeds set correctly.

2. Burn the 16 square test pattern.

If it looks good, your laser tool is now configured for this specific type of wood.

Next, select a small area of your image do an actual image burn to see how it looks. See attachment.

I usually select the eyes to do small test burns. If a small sub-section of your image burns OK then you can burn the whole image.



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