Now we have started the calculation of vertical motion. When designing the machine, you need to know that the coefficient of gravitational acceleration will be added to the vertical linear motion calculations.We should also pay more attention to inertia ratio between load and sero motor.
Belt pulley driven is not my favorite method for linear motion. Because this is the drive method with the weakest positioning accuracy. However, if a cheap and high speed method is required, belt pulley is the most suitable method.
I’m using Yaskawa SigmaJunmaSize+ and THK Life Calculator applications for my all calculations.
Target values;
Max Speed: 1000mm/sec
Stroke : 2000mm
Let’s start by calculating linear guides as usual. This time we have an asymmetric gravity point. There is also a high speed request, which is specified as 1000 mm / second. Therefore, we will use the SHS series, which is more suitable for high speed. You can use these products either externally or assembled in a linear module.
Today, we are going to learn basic knowledge of how to choose products for horizontal linear axis. Imagine that, this calculation can be Y axis of cnc router or X axis of big 3D printer.
I’m using Yaskawa SigmaJunmaSize+ and THK Life Calculator applications.
Suppose we have a 2000 kg load for the axis that will work horizontally. Let’s consider it as 4 linear guides-2 rails, and the ball screw as the drive element.
The values we want to achieve in the sample application are as shown below.
Max speed: 250mm/sec
Stroke : 2000mm