First test after extreme Mods and DSP upgrade - VIDEO!

[Rob_hoppe]

Took me about a month to complete the conversion. Everything ripped out down to bare chassis... And then...

►Snoot cut out
►Rear of chassis cut out to accept four 120v blower fans,
►Taller legs mounted
►Electronic main control panel re-envisioned, fabricated and mounted
►Rear access panel cut out, and fabricated to include switched outlets, air input nipple, relocated ground, added 10Amp breaker to replace fuse
►All mounting hardware utilizing rivnuts instead of nuts on back of bolts and stainless steel machine screws
►120V bus bar installed and wired
►All new DSP components mounted, DSP Controller sits on standoffs above 24V PSU
►Air solenoid installed and switched at main control panel to turn air assist on and off, custom fabricated bracket
►Shielded silicone cable to air assist head
►Raised Tube platform and XY stage assembly 1/2"
►LED light bar fabricated and switched at main control panel, installed in craoss bar recess above XY stage, used 12V DC-DC converter from 24VPSU to 12V for LED supply
►Custom brackets and circuit board created to attach all 4 micro limit switches mounted on the X stage
►Custom Wiring harnesses built and plug into into X Stage header board
►Laser aligned and new lens installed.
►USB Extension fabricated to custom terminal and mounted for easy plug in of long USB cable
►Cable management is old school with honest-to-god cable lacing
►Fold down handles on both doors and on sides of machine for easy handling


Left to do:
►Fabricate box to vent fans to outside
►Fabricate manual Z-table

Here is the first test cut completed tonight!

http://youtu.be/XvYSIRonyJc?list=UUjX3c ... m_Veaiq7gA

Rob Hoppe
Orlando, FL

[Rob_hoppe]

Here is the second test...

http://youtu.be/4YxdbP22i8w

Rob

[Tech_Marco]

Rob:

Graduation!! Welcome to the DSP club

By the way, how fast did you run on the sample? It seems pretty fast. To lower the stress on the belt, you may want to slow down a bit on K40. I think 400mm/s is the limit. You may find that some corner or curve area was a little darker. On Cut Parameter section (Layer), you may want to lower the minPower or raise a little more on MaxPower. That way, it will make the line burning even.

Don't forget to mention that the DSP is from LightObject


Excellence job!

Marco

[Rob_hoppe]

Thanks for the reply. Didn't know if my posts were going through since I've posted several things with no response! LOL!

First example is set to 80mm and 60 hi and 40 low. Second test was set to 20mm and 70/60. Can that be right? Never had it set over 100mm on speed. So what do you think my issues are and why it seems so fast?

Is there a way to do multiple cut layers in laserCAD so I can do a test at different settings in one pass? I was hoping someone ad a default "library" of cut settings for different materials to start off with a baseline setting. Does such a thing exist?

Rob

[Tech_Marco]

What is the setting on your stepping motor driver? Are you using 1/8 or 1/16 or 1/32?

It seems fast because I think you have wrong setting on the 'um'
Make a square of 25mm * 25mm and send it to machine to cut it. Then, measure the actual size from the cutting (don't need to cut through).
Then, use the parameter setting for X and Y , there is a um calculator by clicking a button next to the X and Y axis. Enter the Expect value which is 25mm and the actual cutting value, it will give you a 'um' number . Do it for X and Y

The laserCad support multiple layers. It is distinguish by the color. So, you highlight a clip art then pick a color from the color bar locate at the bottom. You can sent different speed and power for that particular layer

No libraries available so far

Marco

[Rob_hoppe]

Both Steppers are set to 1/16 (ON-ON-OFF) and .42amp. UM is calibrated from the manual and is dead on with 25mm and 100mm boxes.

Rob

[Rob_hoppe]

Oh, and no matter what color I select in LaserCAD (other than black) I get ENGRAVE next to the layer. Do I just go into the layer properties and change it to cut?

Rob

[Tech_Marco]

Yes, you have to select what mode you want; cutting or engraving, or Cut after engraved

Marco