<< Click to Display Table of Contents >> Navigation: Getting Started Tutorials - MechDesigner > Tutorial 15: Patterns - Indexing-Chain example > Step 15.3 New Slider Set - Different Phase |
We will join the tool to the Belt at two separate 'anchor' Points, like Pins on a Chain.
In this Step, we use a new set of Piggyback Sliders to give the second 'anchor' point.
This Piggyback Slider Set is the same as the first set, but it runs before (ahead of, sooner than) the Master-Machine-Angle by 30º.
This means we can have 12 Tools along the length of the Belt. (360/30 = 12)
With this Piggyback Sliders. We can:
•Use again the horizontal Line in the Base-Part for the X-Slider.
•Use again the X and Y motions for the the X and Y Sliders.
NOTE: Remember - you can use the Motion-Path tool to add as many Motion-Points along the Motion-Path as you like. However, we do not have a Motion-Path in this Tutorial.
See Tutorial 16: Motion-Path FB and Blend-Curves
Add the new Sliders:
We give names: X-Slider1 and Y-Slider1 to the Sliders we added in Step 15.1. Here we will add two new Sliders, We will rename them to X-Slider2 and Y-Slider2.
![]() Two Sets of Pibbyback Slider |
STEP 1: Add Sliding-Part, to the same Line as X-Slider1 STEP 2: Edit the new Sliding-Part, Add a vertical Line. Close the Part-Editor STEP 3: Add a Sliding-Part to the vertical Line STEP 4: Add a Motion-Dimension FB to the Sliding-Part that moves along the horizontal Line - rename it to X-Slider2 Tip: When you select the Slide-Joint as the first element for the Motion-Dimension FB, it not easy to identify the 'narrow rectangles' on the Line in the Base-Part as they are identical. It is easier to identify and select the 'wide rectangle STEP 5: Add a Motion-Dimension FB to the Sliding-Part that moves along the vertical Line - rename it to Y-Slider2 STEP 6: Edit the Base-Value of the new Motion-Dimension FBs to the same as the First set of Piggyback Sliders |
Add the Function-Blocks
![]() Function-Blocks for Pibbyback Sliders |
STEP 1: Add two Motion FBs STEP 2: Edit the Motion FBs: couple one to 'X' motion, and the other to 'Y' motion - see Step 15.1 STEP 3: Rename the Motion FBs correspondingly to X2 STEP 4: Add a Gearing FB STEP 5: Edit the Gearing FB STEP 6: Connect the existing Linear-Motion FB STEP 7: Connect the Gearing FB to the two Motion FBs STEP 8: Connect the Motion FB called Y2 STEP 9: Connect the Motion FB called X2 The two Motion FBs at the bottom of the image When you cycle the mechanism, Slider2 set is in front of Slider1 set by 30º of the MMA. |