我真的不认为它正在丢失步骤，如果我要以错误的方式添加反向绘制的部分路径并说从那里继续它会构成正确的形状。我不使用微步，我的 GRBL 设置：
$0=10
$1=50
$2=0
$3=0
$4=0
$5=0
$6=0
$10=115
$11=0.010
$12=0.002
$13=0
$20=0
$21=0
$22 =0
$23=0
$24=25.000
$25=500.000
$26=250
$27=1.000
$30=1000
$31=0
$32=0
$100=250.000
$101= 250.000 $
102=
250.000 $110=350.000
$111=350.010 =5.0.000
$
0.1120
$121=10.000
$122=100.000
$130=200.000
$131=200.000
$132=200.000
$0=10
$1=50
$2=0
$3=0
$4=0
$5=0
$6=0
$10=115
$11=0.010
$12=0.002
$13=0
$20= 0
$21=0
$22=0
$23=0
$24=25.000
$25=500.000
$26=250
$27=1.000
$30=1000
$31=0
$32=0
$100=250.000
$101= 250.000 $
102=
250.000 $110=350.000
$1.04000
$ 120015=
320 =10.000
$121=10.000
$122=100.000
$130=200.000
$131=200.000
$132=200.000

起初我也这么认为，但后来我看到它移动了 10 毫米，然后你真的可以听到并看到电机在移动它

尝试保持电机始终启用以查看
$1 = 255（Step idle delay，毫秒）

试过了，没有变化

我正在使用画架。慢跑时也会出现这个问题，不要认为代码与它有任何关系。
TheCode.txt
它发生在随机点，有时它可以在失败前完美地运行 3 次

我移动了步进和方向信号线（从 Arduino 到驱动器）可能使它们失去联系，但 cnc 保持正确的方式

它总是不同的，不，我没有使用任何其他发件人

我有UGCS，会试试的。

刚刚通过 UGCS 运行相同的代码，问题仍然存在

您是否已确认原因不是机械原因？
（拧紧将皮带轮固定在驱动轴上的固定螺丝。甚至可以在驱动轴上打一个平点，以便螺丝咬入）
或者步进电机获得足够的功率（安培）来对抗惯性？

是的，正如我之前提到的，它有时会跳得更安静一点，然后我可以清楚地听到电机快速反转的声音。我已经设置了电流限制来驱动我的电机。

更新：我断开了步进器接线屏蔽并提起了金属工作台表面的电缆。现在，只要打开电源，X 轴就会在两个方向上随机跳跃，它也会对我的触摸（在屏蔽层上）做出反应。起初它甚至不需要屏蔽，可能在这里有什么东西……

更新：最重要的是一个有问题的驱动程序，改变了它，不再随机移动，主要问题仍然存在

您确定所有组件之间都有共同点吗？

图片来了，我已经连接了 Arduino 和所有驱动程序接地

这是我的布线 Arduino（最初是 UNO）剩下的东西 驱动程序（收回面包板） 我原来的电路板，现在我只通过它传递 24V 电压，因为它上面有电容器 功率放大器 12V 到 24V，2 个并联以获得更多当前的 Z 轴电机线和以前的主轴电源（现已禁用）

我真的不认为这是反弹，它只是走错了路

And the twisted yellow and black wires coming of of spindle power is +12V for brushless motor cooling fan which is now cooling the drivers

This really looks more like lost steps to me and the motors are stalling occasionally. In your video, you state that the loud rattling in your machine is from eBay bearings. I’m not sure if that is really the case, but I would suspect that your machine is prone to binding randomly due to the rattling. This binding is causing your steppers to lose steps.

I don’t think this is backlash, because it makes a decent circle pretty consistently. I don’t think it’s something electrical because it would happen much more often than what is in the video.

Those are plywood discs held together by glue and hot glue to give some flex. The screw side has a nut inside and the metal plate for pressing the last disc to the screw. Yeah sketchy :), but works. The whole screw system is temporary, I will get the 8mm diameter 2mm pitch ones with good ball bearings later, just what to see it move correctly.

I had problems with slipping at first chamnit, I have heard the sound it makes. My video did not catch any big ones, but when it moves extra 5mm you can really hear the motors give the extra effort to do so. The only thing about possible slip would be the Z axis while its accelerating, it just does not sound completely right, steps are I would say more violent. That is why I increased the acceleration of the Z axis a lot, for the weight it caries it does not have any issues working even without acceleration (full speed always)

Lost steps isn’t slipping. It’s your motor failing to move. If it’s doing it during a change in direction, it can be instantaneous and hard to hear. Your problem doesn’t have anything to do with the Z-axis, it’s the X and Y during the job. And you should be decreasing acceleration, rather than increasing it (F=ma), because you want to reduce the force the motor has to drive.

jahnj0584 i use 2 regular nuts spaced from one another by plywood plates and sheets of cardboard for final adjustment

I understand that I am making things more difficult for the Z axis and it has nothing to do with the main problem, just thought I mention it. I always thought lost steps and slipping are the same, now i see what you mean, I will try less acceleration then.

I meant less acceleration for Z. If you are experiencing lost steps at 10mm/s^2 already, reducing it further won’t really help that much. I would really concentrate on reducing friction and binding on your machine. If you think it’s something else, you can detach your steppers from your machine and come up with a way to check if any of your steppers are going the wrong direction. Anyhow, this issue is closed, since this isn’t a problem with Grbl itself.

从电子学角度的两个建议

1. 确保连接数字逻辑部分的地线不承载电机电流，并且没有接地回路。星形接地配置通常是最好的。当电机通过细线消耗几安培电流时，您可以看到接线上存在明显的电压差。
2. 尝试在 12V 下运行电机，消除可能会产生噪音或产生噪音的 24V 升压电路。您可能需要使用较低的电压来降低速度/加速度