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  • #31
    Keep at it Bernd, nothing as satisfying as your first finished part !

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    • #32
      Thaks Dave.

      Keep watching. There's more to come.

      Joe,

      I found a video where a guy takes you through the build procedure of a similar machine. The software is the same that the computer uses GRBL. I've also learned a bit more how this all works. I didn't realize what this software actually is. Not know what I am doing I did change some of the parameters. The last I ran the machine the over run switches weren't working. Low and behold from the video I found out they can be shut off. Here I thought there command for inches is $20. It's not. Depending how this bit is set shuts off the over travel switches. I'll find out today when i go through trying it out.

      For those interested in what should be in the documentation of how to set up one of these machines here's a video. It's not the exact same machine but the controller is the same as is the software so it should work in the ROBO.



      I'll be back after I see f I can get ROBO tuned up.

      Bernd
      New York, Vermont & Northern Rwy. - Route of the Black Diamonds

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      • #33
        WE HAVE LIFT OFF. I go the machine to home, the hard stops work again too. I'm one happy camper. I'll be back after I play some more to report.

        Bernd
        New York, Vermont & Northern Rwy. - Route of the Black Diamonds

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        • #34
          Well now it doesn't want to play nice when I run a file (cutting program). It has random stops and keeps throwing up the same random error and alarm code. Going to have to see what the experts on the FB group says. That'll be interesting.

          Bernd
          New York, Vermont & Northern Rwy. - Route of the Black Diamonds

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          • #35
            So the machines random stopping during a cut no matter what cut file I loaded boiled down to a simple problem. While moving the machine around I had pushed the E-stop button in. Once released the machine ran the cut files without any interruptions. Seems rather odd that the machine would even run with the E-stop button activated. I'll have to investigate that oddity later. Right now I'm happy that the machine runs without throwing up errors, even with a part I designed and programed.

            I can't blame the software for giving me such a hard time figuring out why it wouldn't run. Not all CNC machines are created equal. They may all work the same but the software is different. The GRBL software actually lets you change parameters in it's software. I now know which parameters to change when necessary now.

            Next will be to actually cut some material and get used to how it operates. Homing in on the Origin spot is still a little hokey. So I'm off for a couple of play days on the machine. I'll post some more on the machine after I try some trial cuts. First though I need to set up a couple of more parameters to dial in the accuracy of the axis movements such as in the 318 PROVer video.

            Until then.

            Bernd
            Last edited by Bernd; 02-10-2022, 09:30 AM.
            New York, Vermont & Northern Rwy. - Route of the Black Diamonds

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            • rrladmin
              rrladmin commented
              Editing a comment
              glad to hear you have it sorted !!

          • #36
            So after 8hrs, and not all of them were to play, I've got the first cut test results and they are good.

            I clamped a piece of plywood to the table and cut the test file that came with the software. Very successful. It's hard to see because the depth of cut is only .5mm (.020").

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            So next I tried out the metric version of my window jig with a smaller dia. cutter and a slow feed. Discovered that I can control the feed rate, rapid speed, and spindle speed while it's in automatic mode. That's great.

            The in-progress cut.

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            And the finish.

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            Ya, I can hear it now. But will it cut aluminum? Yes I believe it will. Not going to try that right now because I don't need a second jig. I am going to design the window framing. It's going to be .010" thick brass. The plan is to cut 12 of them out in the router using a very pointy engraving bit. I'll post the whole procedure when I get to it.

            So after a bit of a battle figuring out some of the problems which I might add were caused by me. I know enough about how this machine and software function to make it cut what I want within reason of the machines capability.

            I'm very happy with it at this point and will no longer threaten it with saying it's a boat anchor.

            Until next time.

            Bernd
            Last edited by Bernd; 02-10-2022, 06:03 PM.
            New York, Vermont & Northern Rwy. - Route of the Black Diamonds

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            • #37
              Nice machine Bernd! Ive been under the weather a bit. Saw you on the Kellow show, showing it live.

              Looks like a worthy piece of equipment. I'll catch up completely tomorrow as I kinda brushed thru the thread.

              Great path finder and oh so useful with many projects. You Scored!
              Philip

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              • #38
                Thanks Philip. I have some things I like to try out to see if this machine will be capable of doing. I think with the ideas I have this machine will be one of the most versatile machines a modeler can own at the cost of a DCC engine. I see it as multi-tool, multi-functional machine if used within it's limits. I'm not going to give any secrets out at the moment. I'll post as each idea gets tried out.

                Bernd
                New York, Vermont & Northern Rwy. - Route of the Black Diamonds

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                • #39
                  Last night I did some engraving. I wanted to cut out a window frame from brass for the Suydam Engine House.

                  In previous pictures you see I have a wooden board clamped to the table. I turned the board around to a new section, cleaned it good with denatured alcohol and stuck a piece of .010" thick brass on the wood with 3M adhesive tape. That worked great and am encouraged that will be how I will do thin brass cut outs. I used a engraving cutter thinking I could cut all the way through.

                  I drew up a drawing in Draftsight, exported a DXF fille to CamBam to create the G-code and then loaded the G-code into the router's computer. In the CAM program I told it that I wanted a depth .005" and only one pass around the block. I told the router it was imperial with a G20 code. The machine did all the conversations during its cut. Quite excited that I can draw in imperial sizes and the machine can run using its metric parameters while cutting exactly what I want.

                  Here's the machine running through a cycle.

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                  A closer view.

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                  And removed from the table and an even closer view.

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                  Yes, I know what you're saying, "That looks terrible", and you're right. Here's what happen, they call it "operator error". I don't know what code that's under but hey, we're human.

                  I redid the program by hand using a text editor to two cycles, each time lowering another .005". First time gave an excellent engraving. But with the code change I may have screwed up a parameter. When the bit came down for the second cut it didn't sound so good. You can see at the bottom it is pretty rough looking to almost the right-hand corner. That's where the tip of the engraver broke. I think two things caused it to break. One was the motor/spindle was vibrating quite a bit due to a heavier cut, plus I must have screw up a parameter, But all in all I'm happy how it worked, that the machine actually started at the point I told it to, that I can draw and produce G-code in inches and the machine can run it to produce the part I want. Next I'm going to try and use a milling cutter to cut out the window frame. I'll do an update with all the gory details.

                  Until then, break a cutter. (take off of "break a leg" when going dancing)

                  Bernd
                  New York, Vermont & Northern Rwy. - Route of the Black Diamonds

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                  • #40
                    It looks like you are well along on the learning curve, Bernd.
                    Bruce

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                    • #41
                      looking good !!

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                      • #42
                        Thanks guys. In a way it's kind of fun since that was one of my jobs when I worked on the assembly floor and brought machines to life. Trouble shooting and getting the machine to run properly. Only difference is I don't have any engineers right there when they are needed. But I've go lots of good friends offering help and suggestions.

                        Bernd
                        New York, Vermont & Northern Rwy. - Route of the Black Diamonds

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                        • #43
                          Change your cutting depth to .003 and make 3 passes. No production schedule here. It looked pretty good until you 'pushed it. I knew getting those kitchen cabinet doors on, would get you away from the early frustration with this router.

                          Your pal - Jim
                          Take the red pill

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                          • #44
                            Originally posted by BurleyJim View Post
                            Change your cutting depth to .003 and make 3 passes. No production schedule here. It looked pretty good until you 'pushed it. I knew getting those kitchen cabinet doors on, would get you away from the early frustration with this router.

                            Your pal - Jim
                            Ah, we won't talk about those doors. That was another frustration but I over came it.

                            The problem with that first cut was I tried it with an engraving tool. I really didn't know what I was doing. It was just a total ____ up on my part. It was also a learning experience. This machine reacts a little different than compared to the Sherline. Did a redesign of the window frame. I made it a little wider. It was supposedly .030" (3" scale inches) wide. Using a, I think, 115° engraver tool going down into .010" thick wouldn't work to good. I now made the frame .060" wide. I'm doing a profile cut instead of an engraving cut. Ran a dry cycle last night at a real slow feed. Going to give it another try today. Going to use a .047" diameter cutter with a depth of .010" and 3 passes. It'll probably break the cutter. The motor sets up a lot of vibration in the machine. I'll post the results later.

                            Thanks Pal Jim. Always good to have stop by and comment. (thumbs up emoji)

                            Bernd
                            New York, Vermont & Northern Rwy. - Route of the Black Diamonds

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                            • #45
                              Interesting and fully immersed way over my head….

                              Gotta watch that GRBL deal carefully….my kids had one yrs ago and that little summabeech Bit and wouldn’t let go!

                              Have fun, I can see the smiling in your posts.
                              Karl Scribner-Curmudgeon

                              Cedar Swamp
                              SW of Manistique, MI

                              AVATAR Image stolen from Model Train Stuff advertisement in my e-mail

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