Benbox Laser DIY Machines

> I've been correcting that in BCL manually. A menu option to do that automatically would be FANTASTIC!.

Mike, I'm about 80% finished with that new feature. It will work with Arcs, E-Arcs, Splines and Polylines.

1. Please click the link $$GrblSettings (BCL COM Port tab) and post the output so I can see your Grbl settings.

2. What ver of Grbl are you using?

This sounds like something is not set correctly in your firmware (Grbl) settings.

Here is the Cohesion board link: http://cohesion3d.com/motion-controllers

It's $99.00 USD.

I'm going to contact them and see if they will send me a controller board so I can check BCL with it. BCL should already work with it if it's Smoothie compatible, but I'd like to make sure.

UPDATE: I sent them a contact requesting a Cohesion board to test with. If they send me one, when I am finished with it, I will mail it to @Zax so he can test T2 with it.

I stopped counting when I found over 16 Arc objects that were drawn in the wrong direction. These will have to be reversed in the BCL tool path so the laser beam burns all of the Arcs in a smooth manner. Also, in BCL, Mike will have to use the FC/IC/LC tags to get the smoothest burn possible. This will take some manual work.

It would have been easier if these Arcs were converted to Splines. Then you wouldn't have nearly as many drawing objects. But it is what it is: we have Arcs.

A bit of work to get the correct tool path but that's due to whom ever created the DXF file: it was not really done correctly, but it can be fixed inside BCL.

If you do a little more work up front when creating the DXF file, you reduce the amount of manual 'clean up' or 'tweaking' you have to do inside your CAM software (T2 or BCL). Of course, many times you didn't create the DXF file so you're kind of stuck with what you get.

Another option would be to turn this into an image and engrave it as a raster image vs burning it as vector lines. T2 can do that now, BCL 2.0 soon.

To be clear I still think Mike's problem is with his frame/laser setup.

> BTW I tried ridiculously high values for Polyline Segments to Display and Gcode Text Dots per Inch and that didn't do anything.

If 20 and 24 didn't make any difference, this wouldn't either.

I'm still thinking you have a frame alignment issue.

To clarify: does the pulley turn?

I don't see how the pulley can also be turning and not pull the belt through the wheels and move the carriage? The belt looks very tight. Can you push it in with your finger about 1/4 inch at the pulley?

Recall Mike that I burned your logo awhile back myself. See attachment.

I'm beginning to think you have a frame or loose wheels issue? You have a wobble some where in your system I'm thinking.

Here is what I would check:

1. Remove all belts and make sure all belt pulley's are tight.

2. With belts off, can you move the X carriage any? Is there any wobble or play? If so, then you need to tighten the wheels and/or adjust the wheels to remove the play. Make sure you can still easily move the carriage left and right by hand (no belts) after any adjustments. I had to drill larger holes on the bottom of my X carriage acrylic parts so I had some room to move the wheels 'up' to get a good, snug fit. This removed the wobble I had.

3. Check and tighten all wheels and make sure none came loose.

4. Reinstall the belts. Adjust so there is about 1/4 inch of belt give, when you push in with your finger, next to a pulley.