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OpenBuilds LEAD CNC

Discussion in 'CNC Mills/Routers' started by MaryD, Nov 20, 2018.

  1. PatMcClintic

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    Note: It appears the BOM lists 46 X 20 mm low profile screws to assemble. There's 32 in the end caps, 14 in the nut blocks and 2 on the 20x20 extrusion that supports the drag chain. I found out when putting on the last end cap. I have stainless screws that will work, so now I have to remove the ones from the 20x20 because you don't see them, so I can use them in the end caps.
     
  2. Batcrave

    Batcrave Journeyman
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    Not to be impatient, but...

    err... well... actually, I guess it's entirely to be impatient, since there's really nothing else I could convincingly call it. "Differently patient", maybe?

    So, just to be impatient... Any status updates on the black bundles? I was looking forward to the 10th in hopes of seeing a shipping notice, but my inbox has been unusually silent (even the spammers and the politicians... and the spammy politicians, too!).

    I would've written it off as being at the bottom of a big stack of orders & waited (and only cried just a little bit) to see if I heard anything tomorrow, but on checking the LEAD CNC (seriously, guys - what's the significance of the all-caps LEAD?) page on the store and noticing that it now says "Expected release date is Dec 21st 2018", I got worried.

    So... what's the story? Do I need to cry a lot, or just a little?


    -Bats
    [ LEAD: Lowercase Eliminates Acronym Debates? ]
     
  3. Rob Mitchell

    Rob Mitchell Well-Known
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    Dude... you are way too verbose!
     
  4. Rick 2.0

    Rick 2.0 OpenBuilds Team
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    Generally delays like this come down to a shortage of just one piece and they'll have a whole mess of orders waiting to go as soon as they get that one piece. It took a while to figure out but I get the feeling this time that one piece is the C-Beam® End Mount. It and everything that uses it is on hold until the 21st.
     
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  5. Batcrave

    Batcrave Journeyman
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    I don't know which of these replies hurts more to read.


    -Bats
    [ :'( ]
     
  6. Mark Carew

    Mark Carew OpenBuilds Team
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    Hey guys just wanted to share that Matt just finished up and posted a new tutorial project on the Build page that really helps walk you through your first steps to cutting out your first project on your LEAD CNC!
    More projects coming out soon! :thumbsup:
     
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  7. valleskon

    valleskon New
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    hey guys,

    when turning on the motors do a small pitch sound or hum is that normal I have the high torque ones.
    not sure if this go away when start running something or the other noise hide that.


    thanks.
     
  8. Trooper11040

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    That’s the motors just being on! All normal! Have fun!!
     
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  9. ADW_01

    ADW_01 New
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    Hey fellas, make sure you check your 50mm m5 screws that mount the motors. I discovered last night as I was finishing up the machine side build that one was 45mm long and not long enough to mount one of the motors. Pretty disappointed as I was looking to fire the machine up this weekend. Luckily I found some on Amazon with one day shipping but I had to buy a 25 pack

    Check your BOM. Other than that, the packaging is awesome and the machine is looking great.

    Jesse
     
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  10. Trooper11040

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    I had other screws missing as well. I had some spares from my xcarve build but it happened at least 3-4 times during this build
     
  11. ADW_01

    ADW_01 New
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    Yeah, pretty frustrating.
     
  12. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Mark Carew likes this.
  13. Mark Carew

    Mark Carew OpenBuilds Team
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    Thank you for the heads up on these screws @ADW_01 and @Trooper11040 we apologize for the mistake and will be happy to send some out to you guys, as well as anyone who may run into this problem. We understand your frustration as there's nothing worse than getting so close to completion and something like that happens. Please contact the Part Store http://support.openbuilds.com/support/home for any questions you may have.
    Thank you sir I will pass this along to the Team at the meeting :thumbsup:
     
  14. Trooper11040

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    Mark, Just finishing up the build and moving the gantry around, etc....are the stock settings very conservative? My belt driven x-carve has way more speed to it using 9mm belts then this machine does having screws...just curious if you guys made the stock settings very conservative just as a precaution? Thanks!!

    Dan
     
  15. Mark Carew

    Mark Carew OpenBuilds Team
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    Sorry, this is a no cry zone, only smiles :D - I checked in with the Part Store Team and looks like you are shipping out today.
    Everyone has been working really hard to ensure you guys have your machines as soon as possible. This Team is amazing and it's an honor to work alongside of them.

    LEAD - Learning, Education, and Development Machine :)
     
  16. Mark Carew

    Mark Carew OpenBuilds Team
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    Lead screw driven machines are generally designed for power over speed. That being said you can tweak the settings and see what kind of top speeds will work best for your machine. As every build will be a little different the top speeds will be different for each machine.
    So all this being said, with lead screw vs. belt systems it really comes down to the right transmission for the job . Since this is a CNC router which will be used to mill material anyway the lead screw is a great option. You gain power through the use of lead screws as well as a little more precision without the possibility of belt stretching on belt drive router systems.
     
  17. Batcrave

    Batcrave Journeyman
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    :D:D:D...
    ...:)
    But... :nailbite:
    wait... :jawdrop:
    Now I'm going to have to wait for the slow boat from China to show up with my spindle! :cry:

    :smilingthroughthetears?:

    (seriously, though - thanks for the updates. and it looks like the tracking number just hit my inbox, so, Yay!)

    Awww... Less Exciting Acronyms are Disappointing... but I suppose Linear Extruded Aluminum Device just wouldn't be specific enough.

    In any case, I hope it proves less of an "educational" "learning experience" than the Largely Extemporaneous Automated Disaster it's replacing.



    -Bats
    [ will a Lazy Entropic Activity Disrupter make me spend more time being productive and less time sitting around posting random garbage? ]
     
  18. Mark Carew

    Mark Carew OpenBuilds Team
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    :D:ROFL:
     
  19. Batcrave

    Batcrave Journeyman
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    Following up on this, maximum speed can depend on a number of factors:

    It the speed the steppers run at can be constrained by the steppers themselves (naturally), or in the electronics by the controller or PC (Mach 3, for instance, ends up capping rapids based on the kernel speed option, which is in turn limited by CPU). This will sometimes put a hard limit on the rapid speeds you can set, or, depending on what's running your motors, could just manifest as a point where things start to stop working the way they're supposed to.

    The travel speed that the motor speed translates to will depend on the drive mechanism - the gear/pulley ratios on a belt drive, or the thread pitch & starts of the leadscrew. As Mark pointed out, lead screw builds tend to sacrifice the sheer speed available to belt drives in return for precision and power, but it's possible to tweak that tradeoff by swapping in different leadscrews & nuts (this can also be helpful .

    Of course, this is all purely about rapids - which is what it sounded like @Trooper11040 was experimenting with. Looking at maximum cutting speed brings machine construction/rigidity and spindle into play (not to mention workpiece materials & cutting tool). This is where a solidly build leadscrew-based machine shines, because it can handle cutting harder materials at speeds that would make a lighter belt drive machine bog down. Cutting air or foam, the belt drive will cruise along at crazy speeds, but I'd much rather have a leadscrew when it comes time to push that tool through hard maple or oak.


    -Bats
    [ there are exceptions to all of this, of course - I've seen belt-driven industrial machines that could cut through leadscrews like the LEAD cuts maple ]
     
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  20. jeffmorris

    jeffmorris Journeyman
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    Using the 90 Degree Joining Plates on top of the X-Axis gantry will limit the amount of travel that the X-Axis carriage can move. The carriage will hit the 90 Degree Joining Plates before hitting the vertical 20X80X250 V-Slot rails. I watched the video on assembling the LEAD CNC machine.
     
  21. ADW_01

    ADW_01 New
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    No it won’t
     

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  22. jeffmorris

    jeffmorris Journeyman
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    The X-Axis carriage is the one that holds the spindle or router. Move that carriage so that it hits the 90 Degree Joining Plates before trying to hit the V-Slot rails. You'll lose some build area.
     
  23. Rick SHEARER

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    I jave been looking at different machines and kits from different companies over the last 6 months and was going to order a Workbee as soon as all the options were available again, now i see the Lead machine and I'm not sure. Is there a big differance between the two? What could i do better with one over the other. I need the 40x40 work area for a project i want to do in wood that will probably be repeated. I would also like to try aluminum at some point. It would also be nice to be able to modify any weak areas i or someone else finds. Any help would be appreciated.
     
  24. valleskon

    valleskon New
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    For me the work area is around 730x810 mm (32.6772 x 28.7402 inc) unless I assembled that wrong, the 40x40 is the footprint.

    Cheers.
     
  25. tjordan

    tjordan New
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    Started going through my BOM and found that I was missing two of the 65mm screws. I emailed customer server, which by all accounts here should be a great experience. It might be a few days before I can start making sawdust, but I'm still getting up to speed on Fusion 360 anyways. Other than that, the build is going great!
     
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  26. Rick SHEARER

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    The work area is big enough for my project it is around 26" in diameter. I kinda worded it wrong by saying work area and not foot print. Im syill interested in the differance between the Lead and the Workbee.
     
  27. ADW_01

    ADW_01 New
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    Will there be any issues generating gcode from MakerCam to use with the OpenBuilds Control?
     
  28. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    U
    Untested, but cant forsee why not.
     
  29. Batcrave

    Batcrave Journeyman
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    Hopefully someone who actually knows what they're talking about will step in before I can do too much damage, but the impression I've gotten (after asking the same questions a number of times, comparing designs, and reading the first few pages of this thread) is that the Lead is basically an evolution of the Workbee 1010, designed to be more modular & eliminate a lot of the custom-cut plates. It uses the same C-beam/leadscrew actuators as both the Workbee & C-Beam Machines, and the overall build is pretty similar to the Workbee 1010 - the biggest differences being the Lead's substitution of 20x80 V-slot for the gantry end plates (which @Rick 2.0 has suggested should be even more rigid), and cutting the number of wheels in half (I'm still not sure what sort of impact this will have, but it looks like the plates have mounting holes for adding extras back in later, if there's any need).

    Due to space constraints I'll probably be cutting the footprint of mine in half with a shortened X-axis, but hardwood & aluminum are my target for the machine too. As far as weak areas, I'm hoping the modularity of the Lead will make modifications a little easier & that the growing crowd of unsuspecting victi... early adopters here will help with the troubleshooting.

    Sounds like you assembled it either precisely right, or precisely backwards. According to the store, the Lead is supposed to have 29"x32" (730x810) travel, the Workbee 1010 has 32"x30.5", and the belt-driven Workbee 1510 has 32"x50".


    -Bats
    [ *goes back to sitting on the curb and glaring impatiently at the mailbox* ]
     
  30. ADW_01

    ADW_01 New
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    Actually, I got the hang of OpenBuilds CAM and just realized how much better it is, including the interface. Very easy to use.
     

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