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Re: Mach4 teach/record


 

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Hi Brian,

We can use the ESS if you like. The motion card to me is a little transparent (mach 4 is hardware agnostic). As long as we can support the reading of encoders we can make this work. If we did Ethercat I could look at the current and make it basically a Cobot. We could sense the current and kill motion and stop on quickly increased loads.? May be a bit much for what your looking to do but we really can do anything ;)? . Closed loop steppers and an ESS with the encoders going back to the ESS so we can see the position, I think is about as good as it is going to get for a minimal investment. You will be able to move the bot to position manually (you will need to make some sort of way to counterbalance the Z axis) and teach it positions . Jogging for a use case like this just to slow. I want to move to position and hold the head where I would like to weld and press a button to set the positions to weld . Simple and fast is what I am looking for. This may just be me, but when I pick up a welder and start working I am not in the mood to be a programmer. When I am in welding mode I pull out the C clamps and hammers ;) CNC machine should be as useful, if not... it's a fail!


Okay enough of me running at the mouth.. Time to work with the boy and get this engine painted so he can rebuild his first engine on his own. I figure a 1939 9N is a good simple start. I guess looking at it I should be teaching him electric motors and how to program a BMS... Never thought it would happen but I think I am getting dated (Yeah, I didn't want to say old)


Thanks

Brian


______________________________

Brian Barker
Engineering / Development
ArtSoft | Newfangled Solutions
Livermore Falls, Maine (USA)
Webpage: 
On 2/21/2022 4:20 PM, Brian Martin wrote:

I actually talked to Vectis about this before I got my Cobot. It was still too far of a stretch for the Cobot arm though. Also the cost vs. benefit ratio was too low to do an overhead mount.

Actually Brian I am completely open at this point as far as components. What motion card would you use, will the smooth stepper work with encoders?

I like the idea of using ethernet, my thought is to have the pc mounted on a wheeled work station with a single cable to the machine.

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Thank-you!

Brian Martin



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From: [email protected] <[email protected]> On Behalf Of o1bigtenor
Sent: Monday, February 21, 2022 11:20 AM
To: [email protected]
Subject: Re: [MachCNC] Mach4 teach/record

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On Mon, Feb 21, 2022 at 6:45 AM Brian Martin <bmm@...> wrote:

Good morning, I am looking for some advice and ideas for a project I am brainstorming. I have built a couple CNC machines in the past using Mach4/ESS, so I am comfortable doing it again. Now I am thinking about building a CNC welder for a production beam welding job that we do. I would like to control X,Y,&Z plus at least1 rotary axis for the positioner, possibly up to 4 rotary axis total. Overall travel would be approximately, 144”X, x 48”Y, x 60”Z.

My questions are;

  1. Has anybody built something like this, that would have any experiences to share?
  2. Is anyone using Mach4 to run a robotic welder? Good/bad?
  3. If Mach4, is there a plugin or wizard or otherwise, that will allow me to build Gcode by jogging to points similar to programing a robot? Like a teach function?

I recently purchased a Vectis Cobot with UR arm, so I am familiar with robotics, but the reach of the UR arm is limited, not to mention the cost is too high for this job. I will keep using the Cobot for smaller intricate parts.

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I've thought of running the Cobot on a x-y sled? - - - maybe underslung to keep the crap out of things.?

Then the rotary dimensions are handled separately.?

Simple - - no - - - doable - - - I think so.??

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