Rods "Spaceship" Scratch built Plasma Cutter build

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04 Apr 2017 19:52 #90882 by rodw

I do not see any beer there? :)

Believe me, its coming by the end of the week!

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05 Apr 2017 02:16 #90904 by rodw
Well, I ran into t bit of a problem becasue I wanted to use Norberts updates to Gmocappy in Master and Dewey's external offset code in a different branch.

I managed to merge the two together with these codes:
git checkout master
git pull
git checkout dgarr/external_offsets
git pull
git rebase -i master
git checkout master
git merge dgarr/external_offsets

The other problem is that the original code I had to show the up and down direction via LEDs in the GUI, the pin I used no longer exists. So I wrote a HAL component to do this for me. I have to say I am enjoying writing components to fix things, It does not take long, puts me back in the familiar C language and they only take seconds to compile and install.

I've attached the .comp and here is an example based on the gmocappy plasma signals.hal file
loadrt showzdir names=zdir
addf showzdir servo-thread

net z-position axis.z.pos-cmd     => zdir.zpos-cmd
net z-moves-up zdir.z_moving-up   => signals.led-move-up
net z-moves-up zdir.z_moving-down => signals.led-move-down
Attachments:

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08 Apr 2017 06:56 #91031 by rodw
I think I've found the source of my spurious errors on the Z axis limit switches



Thats a rather busted looking circuit board up on the gantry head that connects to all my sensors.....

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08 Apr 2017 09:13 #91034 by tommylight
I would like to quote Mythbasters at this point " there's your problem " ! :)
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08 Apr 2017 10:07 #91037 by rodw

I would like to quote Mythbasters at this point " there's your problem " ! :)


Tommy, I had no idea you were so observant :woohoo: :woohoo: :woohoo:

So now I think I need to come up with an alternative to the circuit board.....

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09 Apr 2017 09:14 #91078 by andypugh
Reinforce the circuit board? :-)

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09 Apr 2017 10:07 #91081 by rodw

Reinforce the circuit board? :-)


Andy, I remade it today and reworked the way it mounts up as the sockets for the steppers caused it to bend.


.And a quick bit of milling



And it fits up quite nicely with a couple of drilled and tapped holes.

[

And all back together and powered up



But it did not fix my problem. I was beginning to suspect Gmocappy so I rolled back to Axis but I can't get it out of estop. I did post a separate thread but if you have nay ideas on where to go as I am stiumped.

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12 Apr 2017 10:01 #91230 by rodw
lt's been a while but Lee finally had time to weld the rest of the table for me.



You can see why I asked him to weld up this for me


I certainly would not be showcasing one of my pathetic beads.

And by the end of the night, I had a table!

I just hope we welded the drag chain support on the right side!

We just have to sort out the material support slats. I have a feeling my original design is not going to be sturdy enough but right now, that is the least of my problems.

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13 Apr 2017 09:22 #91287 by rodw
Well, I got some of the table assembled today and the gantry ends are in place



I am happy with the clearance between the gantry ends and the table.



Hopefully, it will help keep the rails clean tucked so far back.

Its kinda funny, when I was looking at the gantry ends, they looked to long but now they are assembled, they look correct and in proportion.

I am hoping I will be able to get a bit more together over the Easter break.

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13 Apr 2017 10:20 #91290 by tommylight
Looking nice bro.
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