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Messages - GD George

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1
T2 Engraving / Re: Colors in PDF not picked up by T2. (Solved)
« on: June 14, 2020, 04:21:42 PM »
OT post, but the cabinet and the model are both really cool!

Jerry

2
General Discussion / Re: 3D printer
« on: June 10, 2020, 09:44:06 AM »
Free for personal use. Quoted below. See https://www.autodesk.com/campaigns/fusion-360-for-hobbyists

"Fusion 360 is available for free personal use for individuals who are doing home-based, non-commercial design, manufacturing, and fabrication projects.

There's also a "startup license" that is free.

"Fusion 360 for startups is eligible for venture-backed, angel-backed, or bootstrap startups that are less than 3 years old and have 10 or fewer employees.

Businesses must generate less than $100,000 USD in gross annual revenue (including parent entities) and have a valid website or transact on a social media or digital platform.

Businesses must design or manufacture their own physical products and be willing to share their story with the Fusion 360 community.

Service providers, resellers, contract manufacturers, and consultants doing work for other companies do not qualify for Fusion 360 for startups.

Donít qualify for startup use? Get a commercial or personal subscription to Fusion 360."

3
Assembly Help / Re: Rebuild
« on: June 10, 2020, 09:28:27 AM »
Will report back once I try the other .hex.

No joy.  As soon as I try to home the machine tosses a hard limits error.  Too many variables in my world right now. I think I'm going to bring it into the house and hook it up to the computer with T2 to get it running. Will report from there.

4
General Discussion / Re: 3D printer
« on: June 10, 2020, 09:23:55 AM »
How do you get Fusion 360 for free?  When I looked into it, it was pretty expensive.

Free for personal use. Quoted below. See https://www.autodesk.com/campaigns/fusion-360-for-hobbyists

"Fusion 360 is available for free personal use for individuals who are doing home-based, non-commercial design, manufacturing, and fabrication projects.

Individuals must be learning for personal use, outside of a company environment, commercial training, outside of their primary employment.

Individuals must be engaged in hobby businesses* or creating YouTube videos, blogs or other web content.**"

5
Assembly Help / Re: Rebuild
« on: June 10, 2020, 08:13:47 AM »
Got it. Thanks, man. I just saw the "z" in the one I have loaded. Going to switch it out and try it again. Unrelated question: is there an easy way to find the installation path for T2?  I tried going to the appref in the start menu, but the path isn't listed there. I wound up doing  a search in the .appdata folder and found it there, but I think I'm missing the boat on something.

Will report back once I try the other .hex.

Jerry

6
Assembly Help / Re: Rebuild
« on: June 09, 2020, 04:45:07 PM »
Did I load the wrong version of your firmware, Zax?

7
Assembly Help / Home Switch Status Report
« on: June 09, 2020, 09:39:49 AM »
<grumblegrumblestupidsoldaringswitchesgrumblegrumble>

How's that for a report?  Where I am is that I've wired the N/O lead from the switches to a piece of protoboard that corrosponds to pin d9 and ground on the arduino.  I then sandwiched the board between the socket on the L7 and the arduino.  I set up GRBL, compiled, and uploaded it to the card, configured soft limits and homing, and... ... ... nothing.  Wouldn't even recognize the switches. Sending $h resulted in a whole lotta ?$g with no other responses. 

So I disassembled the pieces and re-soldered them. This time I uploaded Zax's grbl11f_z-xy hex.  And... well something happens. I send $h, hear a click, and then arduino tosses a GRBL error suggesting that I check the pull-off. There's no movement though.  I tried adjusting $27 from 1 to 10 and then 100 but there's no change. I double checked my pins. I wonder if it's a setting or if my soldering in bad.

Right now I have set:

Send: $$
Recv: $0=10
Recv: $1=25
Recv: $2=0
Recv: $3=3
Recv: $4=0
Recv: $5=1
Recv: $6=0
Recv: $10=0
Recv: $11=0.010
Recv: $12=0.002
Recv: $13=0
Recv: $20=0
Recv: $21=0
Recv: $22=1
Recv: $23=0
Recv: $24=25.000
Recv: $25=600.000
Recv: $26=250
Recv: $27=10.000
Recv: $30=255
Recv: $31=0
Recv: $32=1
Recv: $100=80.000
Recv: $101=80.000
Recv: $102=250.000
Recv: $110=4000.000
Recv: $111=4000.000
Recv: $112=500.000
Recv: $120=80.000
Recv: $121=80.000
Recv: $122=250.000
Recv: $130=600.000
Recv: $131=460.000
Recv: $132=200.000
Recv: ok




8
General Discussion / Re: 3D printer
« on: May 31, 2020, 04:47:56 PM »
Let me throw Fusion360 into the mix. It's got a bit of a learning curve but it's not that hard to pick up. And it's pretty much free. I come from AutoCAD and it's very different. My workflow is to:
  • create a plan in ProjeCAD (Intellicad-based Acad clone).
  • dxf it to Fusion
  • Extrude and fill in the sides as necessary. (This is the part with the learning curve.)
  • Export as a .stl file to Slic3er
  • Slice and send to the OctoPi controlling the printer
  • Print
  • Edit the prototype if necessary
  • Print the final.

Best,
Jerry

9
Assembly Help / Re: Rebuild
« on: May 28, 2020, 01:22:36 PM »
N/O would imply parallel wiring, one switch per axis. The port is set with an internal pull-up and held high until the switch trips. The switch closure shorts to GND.

Hmm. Well whatever I'm doing isn't working. I'm a little confused as to what I need to set up in the source to make the L7 work but I think I need to look at the pin definitions. So I think that's next.  Or switch to an Uno.

Do you have an example of a card with the MOSFET on it?  Can I add one (standalone MOSFET) to the existing card?

Best,
Jerry

10
Assembly Help / Re: Rebuild
« on: May 27, 2020, 08:46:13 PM »
OK... I knew I had read something about using these specific modules.

https://benboxlaser.us/index.php/topic,1494.msg21588.html#msg21588


11
Assembly Help / Re: Rebuild
« on: May 27, 2020, 07:07:25 PM »
It's the default version of GNEA 1.1h flashed from a hex. (https://github.com/gnea/grbl/wiki/Frequently-Asked-Questions)

It looks to me like the default is normally open.  The FAQ says that it will work with either though. What I'm not seeing is anything about pin 9 and ground. I think I got that from some things that @zax has posted. I'm not controlling the machine with T2 though at this point though.

So what I did is pull the source code, change it to 2 axis homing, and then flashed my machine. I'll check that it

My only question is where in the config to make sure that the Nano looks at pin9? OK, wait...One more question: the machine seems to be working well with this version (without the homing change, at least) but are there other things I need to look at?



12
Assembly Help / Re: Rebuild
« on: May 27, 2020, 02:53:28 PM »
The next question is about the mechanical endstop units.  If I understand my hardware:
  • I don't need pin 4 at all. That's 5v for the LED, and while I wouldn't mind having the LED working, it's not important.
  • Pin 2 (Ground) is not wired into the plug that comes with the module.
  • Pin 3 is also ground.
  • Pin 1 is signal.
  • If I wire the green (pin 1) into one, and the black (pin 3) into the other end of my meter I get no continuity.
  • If I close the switch, I get tone.

Therefore the switch is normally open and I should wire switch-1 green to pin 9, switch-1 black to switch-2 green, and switch 2-black to the ground pin next to d2.

Thanks,
Jerry

13
Assembly Help / Re: Rebuild
« on: May 27, 2020, 02:42:16 PM »
I build my own. If you like soldering I will mail a blank. The pcb shops run specials where you can get 5 boards for 5USD. Sometimes with free shipping. Have been looking into getting the fabrication also done. I started with a L7 and it was random. Bought an L2 which died in 2 minutes.

Your own breakouts? Nice. I think this will work. Soldering will be minimal. Thanks!

14
Assembly Help / Re: Rebuild
« on: May 27, 2020, 02:31:09 PM »
I'm going out to cut down that proto board and see what happens.

Hmmm. Couple of minutes with the band saw bench sander and it fits pretty nicely.  All of the 'd' pins except d12 are accessible via the proto-board cutout, and everything seems to still work.  I'll call that a tentative success.

15
Assembly Help / Re: Rebuild
« on: May 27, 2020, 01:39:45 PM »
If your laser has 2 wires then you need a controller with the on-board switching MOSFET.

Example please?

I'm going out to cut down that proto board and see what happens.

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