fChris has 69 post(s)

I have been looking into the issue some of you have been facing where MasterCAM hangs / crashes when it is loading. I may have found a potential fix for this. In digging around I have found this to solve the problem for me:

1. Browse to the folder with the MasterCAM application in it (C:/Program Files/MasterCAMDemoHLE2017)
2. Find the Mastercam Application file
3. Right Click on the application > Run With Graphics Processor > High Performance Nvidia processor

It seems as if this issue is related to an incompatibility with certain versions of Windows, Nvidia graphics processors, and MasterCAM. This solved it on my computer, but I haven’t had a chance to test this elsewhere yet.

Build the common disposable plastic spoon depicted below. This object will be distributed in class for you to inspect. This Rhino file provides some of the curves you can use to build this object. Begin by building just the “top” surface of the spoon (as shown below) – don’t worry about giving it thickness or making it a solid. If you succeed with that, try to complete the “bottom” and other surfaces necessary to form a solid.

???? idk why everyone keeps doing this!??!

A post shared by @ dieter_ramsch on Dec 31, 2016 at 4:08am PST

Here are the answers from today’s quizz

The section on the Bank CNC training website listed below has a thorough tutorial you should follow along to for creating surface toolpaths in MasterCAM.

https://risdbankcnc.squarespace.com/surface-cuts-hidden

Build a model of the metal spoon that has been distributed in class. Orthographic top and side view images of the spoon are provided for your convenience below.

I just wanted to make everyone aware that if you double click on a MasterCAM file (on your desktop or in a folder), it will open MasterCAM, but it will not open the file you double clicked on. You need to open the file from within MasterCAM.

Some of you have asked: Is there a way to update the geometry in MasterCAM when I make changes in Rhino, like you can do with the Keyshot plugin?

There is not a plugin that links the two applications like Keyshot has with Rhino, but there is a fairly simple way to accomplish something similar:

1. update the geometry you want to change in Rhino.
2. In Rhino, select only the geometry you want to update and run the command “export” to save only this geometry.
3. In MasterCAM, select the geometry that you would like to update. Delete this geometry by clicking the delete key (on mac you may need to press the “FN” key + delete. If this geometry is used by a toolpath operation you will get a warning, click OK. This is just warning you that a toolpath is using the geometry you are about to delete.
4. Merge the updated geometry you exported in step #2. You may want to use the technique covered in a previous post to make sure the layer structure is preserved, but sometimes merging in new geometry messes up the layers.
5. Go into the operations that should use the updated geometry and add the updated geometry to this to the operation. To do this, expand the toolpath operation, click on the entry for “geometry”, then right-click in the “chain manager” window and pick “add chain”.
6. When finished adding chains, click the green check to exit the chain manager, then regenerate the operations to calculate these changes.

You can use the same technique to add additional geometry or to otherwise change the geometry that is associated with a specific toolpath operation.

Some of you may be experiencing a problem where your layers are not preserved upon merging from Rhino into MasterCAM. Here is the workaround to solve this problem:

1. Make sure you “export” from Rhino only the geometry you need for your work in MasterCAM
2. go to File>Merge in MasterCAM, browse to the file you want to merge, select it, and click “Open”
3. One the left side of the MasterCAM application you will see the Merge options. Click on the check box for “Use current attributes” to turn this option on, then click on it again to turn it off
4. if you look at the “Levels” panel, you can verify that the layer structure is preserved – you should see the named layers from Rhino with the appropriate number of objects per layer.
5. Click on the green check symbol to complete the merging of geometry

????#mcneel #madness #rhino #ragequit #sweeptheshitoutofit#endangeredspecies #designer #3d #cad #productdesign #design #industrialdesign #industrial #product #designing #graphicdesign #graphic #furnituredesign #furniture #interiordesign #interior #architecture #decoration #decorative #designer #designblog #designmemes #memes #dieter_ramsch

A post shared by @ dieter_ramsch on Apr 23, 2018 at 2:48pm PDT

Sorry we did not post this sooner, but you can get the tool library with the 15/32 bit below. You will see that this tool is tool #8 in this library. You should go back into your operations and choose this tool. You should also make sure that your tool settings are not set to “assign tool numbers sequentially”. If you do have it set to assign tool numbers sequentially, the first tool you select will be called #1, regardless of which tool it is in the library. This will cause your part to cut with the wrong tool. See the image below for a reminder where you access this option.

http://3d2018.christopherspecce.com/wp-content/uploads/2018/04/BANK_TOOLS_2015PlywoodBit.zip

If for some reason you don’t see this tool as an options from the library, be sure to uncheck the option for “Filter Active”

If you have the correct tool – “15/32 Flat Endmill”, but the tool number is wrong (maybe assign tool numbers sequentially was checked), you can just go in an change the tool number:

This video shows you how to set defaults in MasterCAM, so you don’t need to enter them each time you work with it.

See the PDF below for recommended settings for MasterCAM:

http://3d2018.christopherspecce.com/wp-content/uploads/2018/04/MasterCAMSettings-ContourDrillPocket-2018.pdf

Build the object shown below. The Rhino file available here has curves you can use as a reference to build with / from.

http://3d2018.christopherspecce.com/wp-content/uploads/2018/04/Y-Branch-Challenge2017.zip

This diagram illustrates the flow from concept to part in a CNC machining process.

If you have not completed your name plate and the Cat Face tutorial, we can use the start of class to work on this.

If you have, you can work on the following exercise:

Create several chair models, each one using the following commands as the primary (if not exclusive) method for creating the form:

1. Revolve
2. Extrude
3. loft
4. Sweep1
5. Sweep2
6. NetworkSrf

Put each model on a layer in the same Rhino file. Using Keyshot, create a rendering of the 5 chairs in one image. Post this image to the shared google drive. Name this file: FirstnameLastname_6Chairs.jpg

It’s been brought to our attention that the method for defining the stock shown in the tutorial does not work. This is a factor of some changes that were made in MasterCAM 2017 from the previous versions. Instead of clicking on the “Bounding Box” button, click on the “All Entities” button and this will work the way that “bounding box” used to work.

Sorry for this confusion.

Misha Kahn at 6:30 pm in CIT room 103

In order to install Windows on your Mac, you will need to install Parallels. You can start with the trial version of Parallels, and download the free Student edition of Windows from https://risd.onthehub.com . Be sure to give yourself plenty of time for downloading and installing as the files are quite large. If you have downloaded your free copy of Windows 10 previously while at RISD, you will not see an option to get Windows as they only allow you to download the OS once. Check the bottom of this post for more information.

Once you download the Windows 10 ISO (the installer file) and Parallels, install Parallels first. It will then guide you through installing a virtual machine (where you will run Windows). You will need the ISO file on your computer or a USB thumb drive and your License key but the install should be fairly automated with Parallels.

This is what you should see for windows once you add it to your cart. You don’t need to add the “Extended Access Guarantee”, but this will provide you 24 months of access to download the software or view your key. Otherwise, your access to download is limited to approximately 1 month and your keys are in the confirmation email you receive when you purchase.

Can’t Find or Access Windows on onthehub?

If you previously installed or downloaded Windows 10 from onthehub, you will need to find the email that contains your license key that was sent when you originally. If you don’t have this you’ll need to talk to OIT to retrieve it or pay for a new license. You can get the ISO file (the disk image of the installer) from OIT, another student or we will try to have Marylin have a USB drive you can check out with the file.