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Mark Carew
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Sep 24, 2018 at 2:51 PM
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Works at OpenBuilds

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Mark Carew

OpenBuilds Team, Male, from NJ

Staff Member Moderator Resident Builder Project Maker Builder

Hey guys I am going into radio silence for a bit as we are working on some exciting new things we can wait to share! Stay tuned Apr 7, 2018

Mark Carew was last seen:
Sep 24, 2018 at 2:51 PM
    1. gibson
      gibson
      hi mark is there a way to hook up a dust boot on this model so its stationary
      1. Mark Carew
        Mark Carew
        Hi Gibson - OpenBuilds is working on a design for a nice dust boot, but in the meantime check out the one at KentCNC - https://www.kentcnc.net/nc
        Sep 22, 2018 at 8:59 PM
    2. foamflyer45
      foamflyer45
      Hi Mark, This is Ernie. I'm having a problem with my Phlatprinter 3. When I send a job, it starts ripping the foam in a diagonal all the way across the FFF. Tried a test simple 2 inch square drawing and does the same. I can jog the machine via the controller software in every direction. I need your help in trouble shooting this issue. Thanks [email protected]
      1. Mark Carew
        Mark Carew
        Hi Ernie, Awesome to hear your running the Phlatprinter! I will look at your email today and see if I can figure out what may be happening. Good to hear from you brother!
        Sep 18, 2018 at 5:58 AM
    3. Mark Carew
      Mark Carew
      Hey guys I am going into radio silence for a bit as we are working on some exciting new things we can wait to share! Stay tuned
    4. lumber60
      lumber60
      What do i do next. I built my machine and don;t know how to connect it to my laptop. I used a db25-1205 bob with a uc100 adapter to usb and connected to laptop. What do i do next???
      1. Mark Carew
        Mark Carew
        Congratulations on completing your machine build @lumber60 ! Your best bet at thins time would be to jump right in to the awesome resources that is OpenBuilds forum and talk to others about your build. A good thread to strike up a conversion maybe related to your questions may be in the software section. https://openbuilds.com/forums/#software.23
        Apr 7, 2018
      2. Mark Carew
        Mark Carew
        You can also Share your Build and have a place to talk to other directly about your particular machine. This is a great way to help others learn from your journey. Share you Build here: https://openbuilds.com/builds/submit-new-build
        Apr 7, 2018
        MaryD likes this.
    5. Navaneethan
      Navaneethan
      HI Mark,

      I am a novice to CNC and would like to build a pen plotter cam laser cutter in one machine. I am looking forward for your help in getting me understand things . Any beginners things to go through or stuff like that?
      1. Mark Carew
        Mark Carew
        Mar 23, 2018
      2. Mark Carew
        Mark Carew
        I think the ACRO may be just what you are looking for :)
        Mar 23, 2018
    6. drfirew
      drfirew
      Hello Mark,

      I had XPRO V3 working fine, until this afternoon. I was configuring homing settings and after making necessary changes to grbl config.h file and compiled it in Arduino, I was flushing the .hex file to my XPRO board, when suddenly all the light on the board turned off and I can only see the 5V green LED, and flickering green LED on the USB port on the board.
      1. View previous comments...
      2. drfirew
        drfirew
        Turned all powers off and reconnect all cables and tried to power on the board, but there is only the 5V green LED, this time this is from 24V reaching the board. Other than that no LED of the motors is on, lifeless. Universal GCode sender, connects to the port but grbl information is not replied.

        I am posting this to others too, as I am a bit panicking.

        Help, please.
        Feb 19, 2018
      3. MaryD
        MaryD
        @drfirew for prompt assistance, please post this question directly on the forum rather than to individuals. You'll get a ton more responses and others will also see this and get the help they need with same/similar issues. Thanks.
        Feb 20, 2018
        drfirew likes this.
      4. drfirew
        drfirew
        @MaryD I have learned quickly and have done exactly that. Thank you.
        Feb 20, 2018
    7. Praveen Jain
      Praveen Jain
      Hi Mark,

      So I am a senior in college doing mechanical engineering. For one of your projects, I was thinking of using your project "v-slot linear actuator". I just had one question but the accuracy of the system. How accurate do you think we would be able to control the linear position of the trolley on the linear rail?
      1. MaryD
        MaryD
        Jan 24, 2018
    8. Smfuller
      Smfuller
      Hi mark building my first machine need some cam help on a project i eould like to do any suggestions
      1. Mark Carew
        Mark Carew
        Hello Smfuller, welcome to OpenBuilds!
        Sure I would say it really depends on if you mainly want to do 2D cut out s and pocketing or full on 3D relief type carvings. Have a look at Vectics products and compare - http://www.vectric.com/products/compare.html
        Jan 19, 2018
      2. Mark Carew
        Mark Carew
        Jan 19, 2018
        Smfuller likes this.
    9. chingu
      chingu
      Hey Mark, I am new to the CNC community. I was looking at buying a C-Beam and was wondering if this build would be OK to use a laser diode down the road and alternate between them? And would I need to change out anything on the machine in order to do this i.e. boards, frame work etc;
      1. Mark Carew
        Mark Carew
        Welcome to the awesome OpenBuilds community! Yes I see no reason why you could not attach a laser diode down the road if you would like to, in fact guys here do it all the time in that they have both diodes as well as mills on the same machine. Hope this helps and we look forward to your Build, please share.
        Nov 26, 2017
    10. ke1th
      ke1th
      1. Mark Carew
        Mark Carew
        Thank you Keith
        Nov 20, 2017
    11. CharlieShimota
      CharlieShimota
      Hi Mark, I'm just getting started with DIY CNC machines and love all the info here at Openbuilds. I want to build a machine similar to the Ox you did but I'll have to do it in increments. Do you think I could use Corian (a solid surface counter-top material) to make the plates, it's 1/2 inch thick, very sturdy and machines nicely. Thanks, I'm chompin at the bit to get started!
      1. Mark Carew
        Mark Carew
        Awesome idea and I think it would work great! I would love to see this build so please be sure to share. Thank you
        Nov 20, 2017
    12. RedGreen
      RedGreen
      Hi Mark, I'm a newbie, can you tell me how do I build from scratch and make sure I got all the part I need ?
      1. Mark Carew
        Mark Carew
        Hi @RedGreen Welcome to the OpenBuilds club and to the world of CNC machines! You found the right place to start. Just pick a machine you would like to build and join in on the discussions on the Builds page (tab at the top of the build). There are lots of great folks ready to help you get up and running. Have fun :)
        Nov 2, 2017
    13. Liam Oakley
      Liam Oakley
      Hi Mark, would you like my Solidworks model of the ACRO Laser system?
      1. MaryD
        MaryD
        Oct 9, 2017
    14. Michael Dwyer
      Michael Dwyer
      Mark,

      I love the MiniMill and plan to purchase the build kit. However, I am already interested in increasing the X axis travel and thought about purchasing a longer piece of C-beam and longer lead screw to do so. What is the maximum you think can be supported off of the Y axis travel C-beam without changing the entire design. I'm willing to purchase reinforcement pieces as necessary.

      Thanks,
      Michael Dwyer
      1. MaryD
        MaryD
        Oct 5, 2017
    15. Subzero_01
      Subzero_01
      Hello Mark,
      Strange that I can not find anything here on site about pending laser engraver release?
      No news, nothing.
      Do you have any date, anything?
      Power, size?
      // Oliver
      1. MaryD
        MaryD
        More details coming this week...
        Sep 6, 2017
        Mark Carew likes this.
    16. Mark Carew
      Mark Carew
      Friday is fun project day!
    17. Subzero_01
      Subzero_01
      Hello,
      Need some advice regarding choosing between C- Beam XL or OX.
      Plans are to later add 17W diode laser on Z axis.
      Which one is to preffer. If I choose OX I will almost att once change it to OX Metal with lead screws so cost will be the same.
      I do not like belts on any machine.
      All tips are wellcome.
      // Oliver
      1. Mark Carew
        Mark Carew
        It sounds like your best set up right out of the gate would be to go with the lead screw driven C-Beam XL if you are wanting a lead driven machine to work with a diode this should work well for you. You can always use it to make plates as well if you decide to go with a larger machine down the road.
        Aug 28, 2017
        Subzero_01 likes this.
    18. GeoffH
      GeoffH
      Changed the 250mm supports with 400mm c-beam, accurately cut by Ooznest (no filing, thank God), now I have great Z travel on the XLarge.
      1. Mark Carew and Ryan Lock like this.
    19. GeoffH
      GeoffH
      Hi, I purchased a C-Beam XLarge kit from Ooznest in the UK; very good experience and producing some really nice parts, 2d and 3d. I wonder if I could get your opinion on changing the 250mm long c-beam Posts that support the X Gantry to say 300mm in order to increase the Z travel?
      1. Ryan Lock likes this.
    20. Lodds
      Lodds
      I have just retired and looking to extend my woodworking hobby to include CNC C-Beam machine.
      I'm looking at purchasing this unit from Ooznest in the UK. Can you tell me if their materials are to a satisfactory standards and original concept by Mark.
      I have no idea what I am getting into and not at all sure if all this is within my capabilities anyway especially when it come to the software and design.
      Regards
      Tony
      1. Mark Carew
        Mark Carew
        Hello Tony, Welcome to CNC once you start you will love it! Dive right in and have fun. The Ooznest guys are great and they will have you up and running in no time. The OpenBuilds resource here is the best in the world so be sure to check in on all the helpful tips and ideas here on the forum.
        Aug 3, 2017
    21. Gonçalo martins
      Gonçalo martins
      Good Morning,
      Sorry to be bothering but I have a problem with my cnc:

      He is using Arduino one and G-shield, and Universal G sender

      It works well with the G sender manually on the various axes, however when
      Sending a project to cut it advances in x + and gets uncontrolled.

      Or rather loses the coordinates.

      I really do not know what I'm doing wrong.

      Someone who can help me.
      1. Mark Carew
        Mark Carew
        Hello @Gonçalo martins I do not have this particular setup but I will give some advice that may help.
        Not sure if this will help but from this statement "Or rather loses the coordinates." it seems to me that it could be your unit of measure (mm/in) not set right in your code vs. the control software.
        Jul 7, 2017
      2. Mark Carew
        Mark Carew
        This is a long shot but to be honest though to tell from whats explained. If this does not work for you please use the support forums to work with the community to see if we can try to figure out what may be going on.
        Jul 7, 2017
      3. Mark Carew
        Mark Carew
        Jul 7, 2017
    22. MeindertJB
      MeindertJB
      I am new to this forum and like to build the Ooznest OX CNC Machine build in 'Cartesian Style CNC' published by Ryan Lock, Jul 20, 2016. Can someoneplease help me to recalculate this spread sheet to a working space from 450 x 1200 x 100 mm ? I hope someone can help me.
      1. Mark Carew
        Mark Carew
        Hello @MeindertJB , thank you for reaching out to us. I did not make the spread sheet so not sure there but I think that your best best for this answer would be to reach out on the Ooznest OX support thread.
        Jul 6, 2017
      2. Ryan Lock
        Ryan Lock
        Hi,

        The parts list would be the same. It would be just the extrusion lengths which would need changing. The spreadsheet is for a 500x750mm machine. All you need to do is take 50mm off all the 20x40 & 20x60 extrusions (Except the 20x60x200mm). And add 450mm to all the 20x80mm extrusions.

        Best Regards

        Ryan Lock
        Jul 6, 2017
        Mark Carew likes this.
      3. MeindertJB
        MeindertJB
        I woke up 03.30 tonight with an idea and it worked and have converted all to a correct parts sheet !!!!!

        Thanks for the help and respose
        Meindert
        Jul 8, 2017
    23. PhotoSgt85
      PhotoSgt85
      Mark,
      I was wondered if you could share where you sourced the green connectors on the APEX design that go from the PCB to the stepper driver. I have a control system (non CNC) for a laboratory sample system that currently has too many wires that I would like to neaten up. If you can help I would greatly appreciate it!

      -PS85
      1. Mark Carew
        Mark Carew
        Hello @PhotoSgt85 the board house sourced these for us, so I am not sure. If I am able to find out I will send out a message to you about them.
        Jun 27, 2017
        PhotoSgt85 likes this.
      2. PhotoSgt85
        PhotoSgt85
        Just wanted to let you know I found out that they are called Phoenix connectors. I have a project I hope to have coming forth soon that uses these that I think you'll like.
        Aug 3, 2017
    24. Mark Roberts
      Mark Roberts
      Mark, Every time I buy something at the parts store additional emails of the same news announcement are sent to me. The last count was 32 emails announcing the Mini-Mill package. Mark, I only need one. Can you fix this? John Mark Roberts
      1. MaryD
        MaryD
        We will look into this.
        May 31, 2017
      2. Mark Carew
        Mark Carew
        Thanks guys we will work this out
        Jun 10, 2017
    25. byung jun park
      byung jun park
      Woodwork with my heart and soul
    26. Lulu121208
      Lulu121208
      hello...sorry for my bad english, i was thinking about to build cnc miller cutter machine for steel-plate and carbon steel milling. with is the best openbuilds cnc machine for doing this work ?
      1. Mark Carew
        Mark Carew
        Apr 21, 2017
    27. Rego
      Rego
      i,m not using a grbl shield just 28byj-48 steppers and mini servo motor any help will be appreciated
      1. View previous comments...
      2. Rego
        Rego
        thanks on post processor as i'm qa newbie at this i find it daunting apart from rewriting the circuit board i'm trying to plot there must be a way to tell grbl every Z andZ-1 command (pen up Down etc)that Hpxx2 nc file can change to see M03 and M05 commands you have been a great help so far at least someone knows i trying
        Apr 21, 2017
      3. Mark Carew
        Mark Carew
        " there must be a way to tell grbl every Z andZ-1 command (pen up Down etc)that Hpxx2 nc file can change to see M03 and M05" Not sure if it can done in grbl but, since it is a text file you could always use a good text editor that can do replace and you should be able to replace all the Z to M.
        Apr 21, 2017
      4. Mark Carew
        Mark Carew
        Apr 21, 2017
    28. Rego
      Rego
      thanks mark im new at this i built dirks curcuit plotter won,t work so i use robbitin,s servo grbl fofr plotter but when i try to draw circuit file gcode nc uses z1 z-1 pen up pen down but grbl uses m03 m05 i dont want to use different software to change gcode any suggestions please and thanks
      1. Mark Carew
        Mark Carew
        Hello @Rego it looks like you could create a post processor to convert the Z moves into m. But if like you say you don't want to change the gcode you best bet would be to ask for this support on the robbitin github - https://github.com/robottini/grbl-servo/issues
        or ask how Dirks did his, my guess is that he did a pp from the nc file.
        Apr 18, 2017
      2. Mark Carew
        Mark Carew
        You could use a simple text replace editor as well and see if you can do a batch change of all instances of m3 an 5 to z moves essentially what the pp would do. Hope this helps. If not please ask this question on the general questions thread and someone will be happy to help - http://www.openbuilds.com/threads/open-build-parts-for-sale.9096/
        Apr 18, 2017
      3. Rego
        Rego
        Thanks mark at least there is a way around it
        Apr 18, 2017
        Mark Carew likes this.
    29. Dwa60
      Dwa60
      WHERE IS THE SOFTWARE, THAT MARK TALKS ABOUT, AND WHAT BOARD DOES HE USE.
      1. Gary Caruso
        Gary Caruso
        Apr 13, 2017
        Mark Carew likes this.
      2. Mark Carew
        Mark Carew
        Apr 13, 2017
    30. Dwa60
      Dwa60
      To Mark Carew. Sir I was watching your great video on how to build a CNC machine, the full one. You said that there is software on your site, I CAN not find it, could you help out, I also liked the drawing you had. My build is exactly like yours, I followed every thing, I had to watch the video 6 times, you said the type of board you are using but I could not hear what you said,
      1. Mark Carew likes this.
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