In this 7 step video series, you will learn how to machine a blower wheel within TopSolid 7. This will include preparing your cad data, defining your stock model, selection of a machine, adding a fixture, and adding your MPS file to cut. From there, you learn how to use Turning to machine as much as possible prior to moving on to 4 axis continuous roughing and semi finishing. Lastly we will cover a few different types of 5 axis finishing. Oh and don’t forget that you will also learn a lot of tips and tricks along the way too!
Prepare Data for Blower Wheel
In this sample, we are assuming that the first operation has been completed by someone else. So you will need to create a stock model that is representative of that. In Step 1, we will focus on building a custom assembly so that you can define your stock correctly.
In all reality, you have two choices here. You can create the custom stock directly within a MPS file (Machine Part Setup), or you can do it within an assembly file.
If you choose to use a MPS file, the creation of this custom stock will be tied to that MPS file. This means that in the parametric world that is TopSolid, the birth of this custom stock block will be tied to the existence of the MPS file. Now if this is a simple, one off part then this method works well. However if there is a chance that you might use this stock model another way, it is better to use an assembly first. Besides, if you start with an assembly, you will have more freedom as to how you design the stock model. The video below will show you how to build the assembly first and then how to use it within a Machine Part Setup Document.
Setup the machine
Like in every real job, you have choices to make. You need to select a machine to run a job on…choose fixturing and tooling and of course you need to setup the machine. In TopSolid, it’s no different. In TopSolid, we always start with machine selection. It is a critical part of the manufacturing process that will affect how you hold the part and how many setups are required to machine the part. In this sample, we will choose a DMG CTX Beta 1250 TC to machine our blower wheel.
In Step 2, you will start by creating a new, empty machining document. From there you will use the “select a machine” command to browse to and select the CTX Beta. After TopSolid loads the machine definition, your next step will be to select and add the correct chuck and jaw combination. In this case, you will browse to a sample chuck library and choose the 3 jaw Rohm chuck. You will use standard windows drag-n-drop to include the chuck into the machining file. Next you will use standard TopSolid constraint positioning methodologies to position the chuck. Play close attention to the fact that the jaws on the chuck move in and out according to the stroke of that specific chuck as well! Continue reading Blower Wheel Machining with TopSolid 7