geneb's build (finally!)

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This topic contains 122 replies, has 9 voices, and was last updated by  Gene buckle 2 months, 3 weeks ago.

Viewing 30 posts - 91 through 120 (of 123 total)
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  • #90608

    Ryan
    Keymaster

    The firmware is limited to 120mm/s you have it at 133. Typically we work in a 8-15, and rapid at 25-35.

     

    But, it is WORKING!!!!!! finally , after all these years.

    #90650

    Gene buckle
    Participant

    Ah, that explains it.

    Yeah, finally moving!  Hopefully I’ll get the torsion box done next weekend and get the spindle up and running.

    g.

    #90652

    Gene buckle
    Participant

    What’s the trick to the auto-square process?

    g.

    #90657

    Barry
    Participant

    Auto Square, Dual EndStops

     

    Scroll down to testing and calibration.

    #91598

    Gene buckle
    Participant

    I must have not read it well enough.  Thanks Barry.

     

    Here’s the latest video!

    g.

    #91647

    Barry
    Participant

    Need to move that mike to your shoulder or something.  Also, go ahead and channel you inner AvE, you know you want to!  I like the construction sounds when you speed up the video, sounds like it’s from a game, but I can’t place it.

    #91664

    Gene buckle
    Participant

    Yep.  I didn’t have a monitor so I didn’t know how bad the “beard scratch” was. 😀  I’ll move it farther down my shirt next time.

    The audio clips are from YouTube’s “Ambience” free sound category at -15db.

    With respect to the auto-squaring system, it’s kind of vague how that whole thing is supposed to work.  I don’t understand how it could square an axis unless the switch stops on the belt are in the exact same location on both sides.  There isn’t any mention of how critical this should be – is it?

    tnx.

     

    g.

    #91668

    Geoffrey
    Participant

    Yep. I didn’t have a monitor so I didn’t know how bad the “beard scratch” was. ? I’ll move it farther down my shirt next time.

    The audio clips are from YouTube’s “Ambience” free sound category at -15db.

    With respect to the auto-squaring system, it’s kind of vague how that whole thing is supposed to work. I don’t understand how it could square an axis unless the switch stops on the belt are in the exact same location on both sides. There isn’t any mention of how critical this should be – is it?

    tnx.

    g.

    It squares the axis by moving the motors independently, so if one is off a touch, it moves it forward/backward from the endstop to square.

    #91678

    Gene buckle
    Participant

    I get that, but there’s no clear indication that in order for it to work, the belt-mounted blocks must be precisely positioned.  I can’t see how it would work otherwise.

     

    tnx.

    g.

    #91680

    Barry
    Participant

    Once everything is set up, you draw a square, then adjust the stop offset in the firmware.  You get it as close as you can with the physical stops.

    #91690

    Gene buckle
    Participant

    That’s a horrifying process. 🙁

     

    g.

    #91743

    Ryan
    Keymaster

    It’s actually pretty easy. The blocks can manually be moved in increments of 2mm, then you can offset it with gcode (or firmware) at any resolution you want. The only hitch is the X or Y 2 stepper can only be offset positive. As odd as it is the last two times I think I was dead on just measuring the block placement from the corner block. If you built it square it should easily be within 2mm (a belt notch).

    #91867

    Gene buckle
    Participant

    I’ll have to fiddle with the block placement and see how that goes.

    g.

    #92432

    Gene buckle
    Participant

    I’m hugely disappointed right now.  I had expected “auto square” to actually BE “auto”.  There’s nothing automatic about any of this. 🙁

    I had expected that M666 would actually take some action, but after looking into it, it will allow you to specify the offset for ONE motor on each axis.

    Doing a G28 X0 results in one side hitting a switch before the other – and it just grinds away until it times out.  The opposite motor never moves to touch the switch.  Whatever switch it hits first stops the side that hasn’t hit a switch and the side that has just grinds away.

    G28 Y0 hits both switches at the same time, so I’m not sure if it would exhibit the same behavior that the X axis does.

    I’ve verified that the x/y “min” switches trigger properly – they’re located at what I consider to be the 0,0 point of the machine.  x2/y2 “min” switches also trigger properly.

    Am I missing something here?

    g.

    #92435

    BT
    Participant

    Are the end stops connected to the “right” motor?  Should the X endstop be swapped with the X2 endstop?  The motor that hits the endstop first should stop while the other motor continues.  You should be able to verify endstop status by triggering one endstop and using M119 to check which one triggered and make sure that the X endstop is the one on the side with the X motor in lieu of the X2 motor.

    #92436

    Gene buckle
    Participant

    So swapping the switch inputs gained me nothing but a broken switch arm.  Sheared the arm pins off, so I get to replace the switch.  Same behavior.  It was my own damn fault – I flipped the switches incorrectly.

    G28 X0 Y0 now works.

    G28 aborts if it travels too long – it shouldn’t abort until it hits a switch.

    My 0,0 point (lower right corner as you look down) has motors Y0 and X1 in that corner.  Is that correct?

    I get ONE day a week to work on this thing.  I  don’t have time for this nonsense. 🙁

    g.
    #92439

    Bill
    Participant

    G28 uses the bed size you have set in your firmware to stop in case a limit switch has failed. By default I believe it’s something like 200×200 mm. Just configure yours to use the actual size and it’ll work as expected.

    #92442

    BT
    Participant

    You can use either motor, you just need to make sure the endstop switch matches.  If X2 is the lower left corner, then make sure that the X2 endstop is also in the lower left corner (the one connected to the Xmax limit switch on the Rambo).

    #92493

    Jeffeb3
    Participant

    I get ONE day a week to work on this thing. I don’t have time for this nonsense

    There are thousands of machines without dual endstops making great stuff. Don’t put too much pressure on yourself.

    We can help you through some of these problems, but it sounds to me like maybe you should take a breath and find the next steps that make you happy.

    My 0,0 point (lower right corner as you look down) has motors Y0 and X1 in that corner. Is that correct?

    Your CAD and CAM are going to have 0,0 in the lower left corner and Xmax is to the right and Y max is up. If you just need to stand on the right side of the table to fix that, then you’re fine :).

    #92513

    Gene buckle
    Participant

    Sorry about the hissy fit yesterday.  It was one of those disaster days when everything I touched turned to crap. 🙂

    From the standpoint of my CAM software, the 0,0 point is ok. It’s the same location on my ShopBot.  If you rotate both machines 90 degrees clockwise, the X axis is along the bottom of the screen.  (At least in Aspire – I haven’t tried EstlCAM yet)

    I’ve got new switches on order, but I’ve got a Rostock MAX v2 rebuild to do (a local college really screwed up their machine) next weekend, The Vintage Computer Festival PNW is the next weekend (It’s at Living Computer Museum +Labs in Seattle), followed by MRRF.  We’ll see what April brings. 😉

    g.

    #92514

    Ryan
    Keymaster

    Well if I actually make it to MRRF please don’t strangle me Gene!

    #92515

    Ryan
    Keymaster

    I am sorry I have not been around to help but it is absolute disaster on my side as well.

    No internet at the old place anymore, installed my equipment over at the new place and everything worked fine all day. Cancel the old account, and all of the sudden they can not use my modem or their modem anymore. Two different techs tell me the wiring to the house is bad and I have to wait 4 days for a tech to come out. 3rd tech understands all of it and realizes I actually have a connection but they just can not activate my account for some reason. His solution, wait, try again in a few days…WTF!?

     

    So that is my excuse for typing on my phone and not helping enough. Soon, I will be back, promise.

    #92516

    Jeffeb3
    Participant

    Sorry about the hissy fit yesterday. It was one of those disaster days when everything I touched turned to crap. ?

    I totally get it. It is important to keep it in perspective. Your day in the shop is a reward. It shouldn’t feel like a punishment.

    Sometimes there are walls that keep us from progress, but you’re not likely to get through it if it’s not fun. If you take the pressure off and just put a half hour (or however long you can do it while still smiling) on the tough problem per week, you might actually solve it faster. Problem solving is a creative skill, not just a hard working one. In the meantime, you can make a bunch of sawdust while keeping it square the old manual way.

    #92518

    Ryan
    Keymaster

    Dam Heffe, I needed to here that as well. Thanks for the zen perspective. I am going to get a good ol fashioned greezy breakfast, and start over with a deep breath and a smile.

    #92519

    Ryan
    Keymaster

    Having a nation’s breakfast. I logged into my internet billing site. It says thank you for activating your account, which modem are you using….select mine. It says connected. I tried a reboot, took about 5 minutes, says all good, for the first time. Wtf. How could 3 tech support agents not think to activate me. Omg, I think I have internet when I get back over there.

    Sorry Gene, you can have your thread back now. I am sure your fix is something simple we are overlooking. I should be online Monday if you need me.

    #92551

    Gene buckle
    Participant

    I’ve actually already got it sorted out for the most part – I just have to replace the one end stop switch and I’ll be good.  I was improperly swapping the end stop switch inputs.  Once the switch is replaced I can start drawing square-ish things on paper.

    Ryan, I’ll definitely be at MRRF!  We’ll have a beer and a laugh. 🙂

    g.

    1 user thanked author for this post.
    #93399

    Gene buckle
    Participant

    After replacing the switch and doing some test drawing, I’ve got a 100% square machine.  \o/

    g.

    2 users thanked author for this post.
    #93402

    Ryan
    Keymaster

    Okay, no I feel safe trying to get to MRRF…

    J/K

    Congrats.

    #94263

    Ryan
    Keymaster

    Sorry to stomp on your thread Gene, I just saw SeeMeCNC is having an open house Friday at 6. Are you going to be at MRRF that evening or SeeMeCNC?

    #94272

    Gene buckle
    Participant

    I get in Wednesday evening, so yeah – I’ll be there. 🙂

     

    g.

    1 user thanked author for this post.
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