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[CNC] CNC from sketch to part the way I do it

Discussion in 'CNC IN THE HOME SHOP' started by jumps4, Dec 17, 2013.

  1. angelfj1

    angelfj1 United States Active User Active Member

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  2. JPigg55

    JPigg55 United States Active User H-M Supporter-Premium

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    I second that !!!
     
  3. Stent

    Stent South Africa Iron Registered Member

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    Me too, Merry Christmas everyone!


    Sent from my iPad using Tapatalk
     
  4. hilestudio

    hilestudio United States Iron Registered Member

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    Thanks so much for your post! I am a furniture builder (to be retired in less than a month) An have filled my former basement woodworking space with metal working machines. Like you, I knew nothing about machining, but I sure have a lot of fun. I am able to make MasterCam fly at work, but that will go with the business. I hope to some day convert or purchase a CNC mill. I am looking forward to your posts.
    Regards,
    Warren
     
  5. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    in this video I correct a few problems with mach3 display of 4th axis code and go into involute cutter making. I'm going to put together a video of a complete project from measuring to machining I just have to get it all together in my head how to do it :thinking:.
    I hope everyone is having a good holiday season
    thanks for viewing
    steve


    [video=youtube;2NKcmVfZ0xI]
     
    Last edited: Mar 12, 2015
  6. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    In this video I started to make a rocker assembly off a small engine. I show how I measures the original and the drawing in emachineshop. Try doing this if you want to feel silly, talking to yourself while watching your hands on camera :nuts:
    Don't forget to hit the full screen button on the lower right of the video box to see a really big nose in the lower left....
    I hope this is helping someone.... I will be doing this all the way until I have the completed part.
    thanks for viewing
    steve


    note: the video and sound get a bit of sync but you should be able to follow

    [video=youtube;qQ1TC0dNtPw]
     
    Last edited: Mar 12, 2015
  7. angelfj1

    angelfj1 United States Active User Active Member

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    Steve, this is outstanding!!!
     
  8. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    this is video 10 and I'm still having a video to voice sync problem I'm finding to be a windows 7 problem. I hope it is clear enough to follow, I'm still trying to fix it.
    I'm still measuring and drawing the rockerbase in this one.
    thanks for viewing
    steve


    [video=youtube;p-7uIlntBG4]
     
    Last edited: Mar 12, 2015
  9. twr

    twr Canada Iron Registered Member

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    Thanks Steve, for all your time to do all these videos i have lreaned alot already. I should have my machine in the next week or two waiting on the riggers, i can't wait to start playing around with it. Also happy holidays to all on the forum.
     
  10. PaulzOx

    PaulzOx Active Member Active Member

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    Steve, I greatly appreciate all your efforts and time making these videos. I have learned a lot from them.


    Paulzox
     
  11. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    your welcome guys, I'm glad I can help
    the good news is, I think I have resolved the video sound sync problem, the bad news is in this video I had to pause filming several times and when the video resumed about half way through the sound stayed paused. Thank you windows 7.
    I didn't remake the video you can see what I'm doing.
    thanks for viewing
    steve

    [video=youtube;AXDp5xc2wbc]
     
    Last edited: Mar 12, 2015
  12. angelfj1

    angelfj1 United States Active User Active Member

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  13. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    In this video I go into how to use the tools to draw and I keep crediting jpigg for suggesting I look for the tools. sorry jay it was frank that made me read the directions. :LOL:
    this video also includes how to do cad drawing in a non mechanical way, there is a lot more to this form of drawing and it is very handy for the cnc router and plasma guys for sign making and such.
    thanks for viewing
    steve


    [video=youtube;iU-yvYA6nIk]
     
    Last edited: Mar 12, 2015
  14. 7HC

    7HC Active User Active Member

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    The making of the replacement rocker holder that fits in the top of the head is an excellent practical example of what can be done using CNC in a home shop with a mill, Mach3, and a chunk of aluminum.
    It's likely stronger than the original too, which appears to be a casting.

    M
     
  15. br1

    br1 United States Swarf Registered Member

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    Thanks for the information about d2nc, I use a lot of different cad cam programs and I have found, for myself, that this program has a learning curve I could not get my head around but after watching this I think I can catch on to what is happening, so thanks a lot it really did help. I just joined but will now know where to ask if I get stuck.
     
  16. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    this is video 13
    steve


    [video=youtube_share;ue_uGuSlV5s]

    - - - Updated - - -

    this is video 14
    steve



    [video=youtube_share;TEcC3_58Hm8]
     
    Last edited: Mar 12, 2015
  17. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    this is video 15
    steve


    [video=youtube_share;-fgiFkYHOHs]

    - - - Updated - - -


    this is video 16
    at the end of this video the g-code is completed to machine the top of the rockerbase I have been drawing
    13,14,15,16 are full of mistakes and corrections but I get it done.
    I don't normally have someone watching me do this, and me talking while trying to think about what I'm doing. It's not like chewing gum while walking.
    steve


    [video=youtube;17NORaYDzPw]
     
    Last edited: Mar 12, 2015
  18. JPigg55

    JPigg55 United States Active User H-M Supporter-Premium

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    I know it must be tedious and, believe me, I've made a lot more mistakes playing around with eMachineshop than you have making your videos.
    But I have to say there would have been a lot more without your tutorials so heres hoping you can stand to keep making them.
    I have some other requests, but didn't want to put you into overload. Figured I'd wait until you were done with this series.
    GREAT JOB !!!!!

     
  19. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    after watching video 15 over again and rechecking my measurement's and code I found a few mistakes in the g-code for step four, cutting out the square holes and outside shape of the part.

    I have also decided to not combine the code together, I'm going to leave it as individual steps so it is easier to review and locate problems.
    steve

    [video=youtube;6V7G2YqqS9M]
     
    Last edited: Mar 12, 2015
  20. angelfj1

    angelfj1 United States Active User Active Member

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    Steve: I finally got caught up with all of the videos. This is outstanding! Thanks for all of your work and please keep them coming.

    Best regards,

    Frank:))
     
  21. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    In video 18 I do the drawings I need for the g-code to machine the front, back and bottom of the part.
    In 19 I have located a problem with the "rockerbase" drawing I missed in the very beginning and do a correction. so all the drawings for the front are fixed to reflect the correction.
    thanks for viewing.
    steve


    [video=youtube;DOXqOJBXCOg]


    [video=youtube;D9pD4RdZeAI]
     
    Last edited: Mar 12, 2015
  22. thebaconbits

    thebaconbits United States Active Member Active Member

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    Finally got around to watching these. Excellent Job!
     
  23. xalky

    xalky United States Global Moderator Staff Member Director

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    Steve, Thanks so much for all of these videos. To be honest, I was a little discouraged as to why I couldn't hear the videos and I gave up. I also got side tracked with other projects but began watching some of the more recent videos. The sound is great now and your video productions are really good now. I can only imagine how much time you've spent just getting things tweaked to your liking. I'll be watching and learning.

    Marcel
     
  24. Rick Leslie

    Rick Leslie United States Active User Active Member

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    First I want to say thank you for doing the videos. I can't imagine putting together one or two instructional videos and you're working on 19 or 20! Thank you!!!

    I'm still stumbling through D2NC but because of your videos, I finally have a limited understanding of emachining and 3D modeling. I've struggled for a year or two with CAD based programs and never could quite wrap my mind around any of them. But watching you model a few things helped me finally see the light. I've been sitting here most of the afternoon (once the new grandbaby went home) practicing. Funny, my wife isn't nearly as happy about it as I am.
    Anyway, thanks again for helping me break through the CAD fog. There's still a lot of work to do, but I'm much closer now.
     
  25. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    I'm glad I could help someone, I'm no teacher and all the software conflicts to get the microphone, camera, and screen capture to all work together was a bugger.
    yesterday I was in the shop getting some ideas on the fixture to hold the stock while machining.
    I have decided to machine the bottom first then bolt the stock to the fixture, that way I wont have to remove it again until it is finished. It's looking like the machining order will be bottom, top, front then back. the fixture will be machined out of a solid piece instead of a plate and spacers but on the final machining of the back section it will machine off one of the leg supports. not a problem since it's not intended to be a production run just one part. I have decided to do a little cam work in d2nc then do a little machining so I can get out in the shop more. I have a fair internet connection in there now so i'll start filming from there.
    it was a good excuse to clean up the shop anyway.
    steve

    D2NC.com has videos showing how to use all the features, the first ones are about how to use the drawing part of d2nc, I have never used it . the later ones go into importing a dxf and all the tools and options. there are a lot more options than I'm getting into in these videos including nesting, 4th axis, text with any font, movable tabs and a lot more. I'm not a part of d2nc I just cant believe what a great tool it is for about $80. my total investment in the cad/cam software's I use the most is $80. I have used and purchased a few others but I keep coming back to emachineshop and d2nc. now if I could just get my head around something easier to use for the cnc lathes.
    steve
     
    Last edited: Jan 6, 2014
  26. Rick Leslie

    Rick Leslie United States Active User Active Member

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    I haven't even touched on D2NC yet. I'm busy playing with Emachine, but I'll be moving to D2NC soon. Again, thanks for putting this into a format I can finally understand.
     
  27. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    In this video I show the fixture plate I have made to hold the stock in all 4 positions.
    the next video will be making the g-code to mill the bottom and the machine work on the bottom.
    steve


    [video=youtube;GBcMjqIXSZc]
     
    Last edited: Mar 12, 2015
  28. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    in this video I do the g-code for the bottom of the part.
    steve

    [video=youtube;2BF62bxICVE]
     
    Last edited: Mar 12, 2015
  29. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    I'm machining the bottom of the part in this video, I set the inches per minute to 10 in d2nc then ran it up to twenty with mach3, that way if I'm running too fast I can hit reset and return to 10. if I entered 20 in d2nc and I'm driving too hard all I can do is try to hit stop and redo the code, hopefully before I destroy the cutter and part.
    I had to start the video over because my shop heater was on the same breaker as my coolant pump and stopped. so I started the code and video from the beginning to get a good idea of the time required. the beginning is just cutting coolant.
    the photographs show how it will fit on the fixture for the rest of the machining.
    thanks for viewing.
    steve

    note: when I was trammed the mill and vise I noticed my "shars" vise leans down .005 to the right. I'm going to have to flip it over and regrind the base true. notice the feeler gauges under the right side in the photos. sheeeesh.. you cant blame your tools if you let it stay that way, once shimmed the rest of the vice checked out very good. there must have been something under it when they machined the rest of the surfaces.

    [video=youtube;q-FFScuvZco]

    DSCF1029.JPG DSCF1030.JPG DSCF1033.JPG DSCF1034.JPG
     
    Last edited: Mar 12, 2015
  30. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    I did the code for the top of the part in the beginning of this project and I used them. somehow in the code the pockets got longer. I checked the original drawing and they are the correct size, when I copied it into a blank form it got longer? I have no clue when I did it. it didn't destroy the part but it is not the exact same now.
    I still have the front and back to machine
    thanks for viewing
    I didn't do a video on this one you could not see the part through the coolant.
    steve

    DSCF1036.JPG DSCF1037.JPG DSCF1038.JPG DSCF1039.JPG DSCF1040.JPG DSCF1044.JPG DSCF1048.JPG
     

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