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Re: [mach1mach2cnc] RE: Mach3 for 3D printing

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    I just went and switched the wires to the motor, but I still have problems with it. It goes slow than stops then goes reverse very fast for short period. Than
    Message 1 of 76 , Sep 30, 2013
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      I just went and switched the wires to the motor, but I still have problems with it.
      It goes slow than stops then goes reverse very fast for short period. Than it goes slow again etc.
      I need it to go slow in one direction so it feeds the glue into the glue gun.
      I am going to remove the 4 pole motor and just put the regular two wire motor and provide the separate switch and be done.
      My biggest problem is how to make the plotting start at the location that I choose?
      If anybody can help me with it I would appreciate it.

      From: Ger <CNCWoodworker@...>
      To: mach1mach2cnc@yahoogroups.com
      Sent: Saturday, September 28, 2013 6:25 AM
      Subject: Re: [mach1mach2cnc] RE: Mach3 for 3D printing

      Or go to Config > Homing/ Limits and check the "Reverse" box to reverse direction.
      ----- Original Message -----
      Sent: Saturday, September 28, 2013 9:22 AM
      Subject: [mach1mach2cnc] RE: Mach3 for 3D printing

       To change the direction of the motor simply go to  Config>Ports and Pins>Motor Output.  then located the A axis
      box in the Dir Low active column. If it has a red X click on it and it will change to a green check mark. Or if it has a green check mark click on it and it will change to a red x . Click on apply and OK. The motor will reverse without changing any wires.
      Dan Mauch
      Camtronics Inc 

      ---In mach1mach2cnc@yahoogroups.com, <mach1mach2cnc@yahoogroups.com> wrote:

      I am building hot glue 3d printer.
      So far it costs me under $100.
      The biggest expense is the motor control board that I got of the eBay for $60.
      Good and bad thing is that this board (blue one, there is also a red board) also came with the Mach3 program and pin settings but I have no clue how to set the rest of the things.
      For example speed of the motors, spindle control, starting point, etc.
      I would like to run XY motors with the slower speed and when I set them that way my starting point is suddenly out of the range. How can I move the starting point of the printing where I want it?
      I need the 4th motor (spindle) to go the same speed and CW instead of CCW but I have no clue how to control it.
      I don't expect this printer to print precise things. I am building it just for fun and to print bulkier stuff.
      If anybody can help me I will appreciate it.

    • Brian Barker
      If you look at the functions I added you get to do that and it sets the variable in the module that I made.. I did this so later I can add more and more error
      Message 76 of 76 , Oct 2, 2013
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        If you look at the functions I added you get to do that and it sets the variable in the module that I made.. I did this so later I can add more and more error checking. I think in the end that is the best thing we can do

        On 10/2/2013 9:30 AM, vmax549@... wrote:

        HIYA Brian, I am not questioning you r code it looks FINE to me for a winerack tool changer. What I suggested is Create the SAME function with the positional values AS variables(parameters) so for the OP to set up the function the OP only has to plug in the positions to parameters to make it WORK for HIS table.

        Every where you have a positional value for XYZ  make it a variable then link it to a system parameter. The OP should NEVER have to be exposed to the macro code just to make the function work.

        If I had a new table with a WR tool changer I would only need to KNOW the travel height of the spindle and the locations of the actual tool holders. These things would then be set as parameter values . You would NOT have to mess with ANY macro code to make the Tool changer function work. AND remember after a tool change the TC function DOES NOT return the tool to the last position. THAT is the CAM/Programmers job.

         Same with tool comp. KEEP it out of the TC function as it belongs in the Gcode side. Remove the COMP before the M6 and apply it AFTER the M6 finishes and you are headed back to work.

        Apon set up of MAch4 you would select a tool changer function such as WR (wineRack) then define the parameters for its operation.  

        NOW IF you want to create a new macro to control that mongral tool changer NOT A PROBLEM have at it.

        (;-) TP

        ---In mach1mach2cnc@yahoogroups.com, <mach1mach2cnc@yahoogroups.com> wrote:

        Terry I don't know how to make it anymore simple and still allow you to change it. Please show me what you are thinking in pseudo code and we will see if it can be done.


        On 9/30/2013 8:29 PM, vmax549@... wrote:

        NOW put the function code out of sight and just bring out the variables as parameters we can set . Do the same for each class of tool changer and you will have it done.  Then IF someone wants to build a tool changer they can simply build to teh class spec and it will work. Presto.

        Just a thought, (;-) TP

        ---In mach1mach2cnc@yahoogroups.com, <mach1mach2cnc@yahoogroups.com> wrote:

        Hi guys I started to make the module for Lua to make the wine rack tool
        changer seem a little more simple. Please tell me if you think this is
        any better to follow. This only took about 2 hours to make the module so
        something like this is very doable..


        -- Name: RouterToolChanger
        -- Author: B Barker
        -- Modified by:
        -- Created: 09/26/2013
        -- Copyright: (c) 2013 Newfangled Solutions. All rights reserved.
        -- Licence: BSD license

        --Load the Module for the wine rack type tool changer

        local Tc = require 'WChanger'

        --Set the output to release the tool (mc.OSIG_OUTPUT1)

        --Set the Pull out distance (x_pullout , y_pullout)
        --This is the distance to get the tool out of the toolchanger fingers
        Tc.SetToolPullout(0.0, -1.1)

        --Position of the Z axis to engage the tool in the changer

        --Position of the Z axis to get from tool to tool

        --Set the tool change positions and the number of tools
        --Tool 1 location
        Tc.AddChangePos(26.019, -1.83)
        --Tool 2 location
        Tc.AddChangePos(29.6, -1.873)
        --Tool 3 location
        Tc.AddChangePos(33.218, -1.839)

        --Add more Tc.AddChangePos(x, y) to add more tools

        function m6()
        --Get the instance of the controller
        --Get current tool and next tool
        local NewTool = mc.mcToolGetSelected(inst)
        local CurrentTool = mc.mcToolGetCurrent(inst)

        if(m_changePos[NewTool] == nil)then
        return (false)

        if(NewTool ~= CurrentTool)then --Skip if the tool is the same

        if (CurrentTool > 0) then
        --Drop off the current tool (nil is telling NOT to move that axis)
        Tc.MoveMachinePos(nil, nil, 0.0);
        --Move tool ahead of the toolchange finger
        --Move tool to Z change height
        --Move tool into changer
        --unclamp tool
        --Pull up off tool
        --Unclamp if no tool in spindle

        --Get the new tool

        --Move to new tool
        --Move on to the tool
        --Clamp Tool
        --Set current tool
        mc.mcToolSetCurrent(inst, NewTool);
        --Pull tool out of changer
        --Move to Z max
        Tc.MoveMachinePos(nil, nil, 0.0);
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