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Messages - ggallant571

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Projects / Re: Slate Baby!!!!!
« on: April 28, 2017, 11:36:40 AM »
I will trade you a stack of slate for a "Good night sleep"!!!

General Discussion / Re: TTL Controller Boards
« on: April 26, 2017, 07:14:34 PM »
The TTL boards by Agastar appear to be frozen in space.

Projects / Re: Vacuform
« on: April 26, 2017, 06:28:31 PM »
Looks nice. Just the type of project the laser should excel at.

T2 Engraving / Re: "Cool down delay" between passes
« on: April 25, 2017, 05:53:52 PM »
If the laser is overheating you might want to wire the cooling fan to be always on. On my unit, the fan ON follows the laser ON signal.

Engraving / Re: Marking toast
« on: April 24, 2017, 10:03:55 PM »
It takes me 6 hours to do anything new new the laser. Would miss both breakfast and lunch.

Cutting / Re: Cutting Plywood with 2.5W
« on: April 24, 2017, 10:41:10 AM »
You will get a wider cut if your laser is not perfectly vertical. Cut a square and examine the edges in both the X & Y directions. If they are both vertical but of different widths, it could be the laser is not circular or, if cutting wood, it behaves differently according to the grain. I found 6mm balsa to be the worst wood to cut. 3mm balsa was also very charred.

Projects / Re: Slate Baby!!!!!
« on: April 23, 2017, 03:00:16 PM »
I hit the local Michaels yesterday and took all 6 packages.

Projects / Re: Old vinyl cutter modification
« on: April 22, 2017, 05:29:57 PM »
I use a STM32F303K8 as the gcode interperter. 72MHz, 32bit ARM with hardware floating point math. I have not yet enabled the FP unit but the performance and available RAM are great. The board is $11US in a Nano 30-pin footprint. Only drawback is it is 3.3V which is not a problem for me.

Projects / Re: Slate Baby!!!!!
« on: April 19, 2017, 05:12:20 PM »
try gimp.

Cutting / Re: Thin wood
« on: April 19, 2017, 05:11:39 PM »
I have 4 (or more) different vendor 3mm plywood sheets which are all very difficult to cut. Does the first 1mm fine and get stuck on the glue. 3mm basswood cut much easier.

General Discussion / Re: Is this the z-axis we've been looking for?
« on: April 19, 2017, 05:05:25 AM »
Not well if my gig is representative.

General Questions / Re: Eleks Maker board
« on: April 19, 2017, 05:04:22 AM »
Elsewhere on this site you will find reversed engineered schematics for the L7. Use at your own risk and please post any inconsistencies you observe..

Cutting / Re: Thin wood
« on: April 18, 2017, 10:35:06 PM »
You have a unique  accent!!

General Discussion / Re: There is a gold mine......
« on: April 17, 2017, 07:27:18 PM »
Most of us go out of our way not to burn the household furnishings. We also really try not to aim the laser at anything shiny as the reflections are probably not eye friendly and are often somewhat random.

Cutting / Re: Cutting Plywood with 2,5W
« on: April 17, 2017, 07:19:33 PM »
The tutorial you cited is for BenCutLaser by Ralph Freshour, our trusty system admin, not benbox. The number of passes will depend on speed, focus, glue, wood, laser beam vertical alignment, mechanical precision, and the ability to remove the burnt ash. I would guess at 6 to 8 passes at 100mm/min.

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