Easy-to-follow video tutorials help you learn software, creative, and business skills.Become a member

Toolpathing the bottom of a part

From: Up and Running with RhinoCAM

Video: Toolpathing the bottom of a part

So, flipping over a part for flip mailing is So this is just purely organizational.

Toolpathing the bottom of a part

So, flipping over a part for flip mailing is one of the more confusing things you'll do in the machine shed, so have no fear, I'm here to show you how to make this simple and to avoid mistakes. So, I've already got a pair of tool paths prepared from the top of this material. That's a horizontal reffing pass and a parallel finishing pass. So, I'll head to the program tab first and to keep things organized, pull up this little fellow here and create a MOp Set, or a machining operation set. So this is just purely organizational. I'll call this one Top, and I'll move these two in there.

Okay, now I also want to create layers for the elements in my model. So, let's make one for Top and one for Bottom as well. Currently, all this material rests on my default layer, so Ctrl+A selects it all. And I just want to take, well, you know what, let's do this, let's take this model and these rods. And we can group them together. Left click, then right click the Top layer, and Change Object Layer. And now, all the materials that I'm using for both sides. So, for example, this cutting plane and this bounding circle here, those will stay in the Default layer.

And I have one copy of my model and its bridges on top. Okay now, let's highlight that, click on Bottom, right click and then Copy Objects To Layer. And now, if I turn out my light bulb right here, I still see that material, but it's a secondary copy that exists on the Bottom layer. So, it's important that you maintain a copy of the object for every set of tool paths you want to do because every time you move a piece of geometry, say flipping it or otherwise changing its position, that will confuse tool paths that have come before.

It's a little bit confusing until you try it. So, I'm specifically working with this material on the bottom. I can also double click here so that I know that Bottom is my default layer if I create any new geometry. Now I'm going to pick the polyline tool. And this is a trick that I learned over a long period of time. I want to be flipping my material to get access to the bottom in such a way that I can remember how I did it, so I can match that operation on the table and in my program. So in this case I'll be flipping it around the y-axis. So I'll come down here to the front view because you'll see that while x and z are represented, y is not because that's pointing straight out of the screen.

Okay, so first I'll click my polyline here at zero zero. Then I know that my material is 2.5 inches thick, so if I type in 1.25, that takes me to the middle in y, left click, and here I'll type in 4, and Enter. And then left click and Enter. So that takes my point right here to the middle basically establishing the point where I'll be flipping this thing over. It just happens that my rod and my big circular shape are also perfectly centered, but that isn't always the case nor is it necessary as you ll see with these rods here.

They're not laid out in a symmetrical fashion, but it's going to turn out just fine as long as you follow the step. Now, click on my point object. Select Point as my O snap, and End as well. And I just want to be really clear about where that central access is located. Okay now, I can take this object, type in Rotate, come back down here into the front view, and with only my Point O snap on, select that center of the axis. I can have Ortho turned on if I like, which helps me flip this thing over exactly.

Left click and I'm done. Okay, so now I have that model flipped over. I'm remembering which axis I flipped it over on and I also know that it's exactly over the top of its cousin on the bottom side. This one can be really tricky when you're getting started out, but if you follow these steps, you'll always get it right. Okay, now for the second set of tool paths, I can copy and then paste this Top area, rename it Bottom. And then as I expand each of these folders, I can re-articulate the drive containment regions.

And they should be the same as before, but I can do this just for good measure. And also when I double-click on my stock and hit OK because that will return it to a a pre-virtualized state. So right now there's no apparent cuts in it. Okay, so I'll right click here on the Bottom folder and say Regenerate. And then I should be able to again right click right here and Simulate. Let's turn this tool pad as well. I guess we can leave the tool pads off. So again we're going to take the long way to, finish this off, so I'll be back in a second when we're done.

Okay, so there you go. Now we have a nice finished tool path on each side of our flip. One of the only downsides with this approach is you can't really model what the finished object will look like. So if this was our second cut, we would now have cut all the way through here and we should be able to see down through to the bed. But as long as you really careful and flip things correctly and export your tool path separately, you should be all set

Show transcript

This video is part of

Image for Up and Running with RhinoCAM
Up and Running with RhinoCAM

13 video lessons · 856 viewers

Taylor Hokanson


Start learning today

Get unlimited access to all courses for just $25/month.

Become a member
Sometimes @lynda teaches me how to use a program and sometimes Lynda.com changes my life forever. @JosefShutter
@lynda lynda.com is an absolute life saver when it comes to learning todays software. Definitely recommend it! #higherlearning @Michael_Caraway
@lynda The best thing online! Your database of courses is great! To the mark and very helpful. Thanks! @ru22more
Got to create something yesterday I never thought I could do. #thanks @lynda @Ngventurella
I really do love @lynda as a learning platform. Never stop learning and developing, it’s probably our greatest gift as a species! @soundslikedavid
@lynda just subscribed to lynda.com all I can say its brilliant join now trust me @ButchSamurai
@lynda is an awesome resource. The membership is priceless if you take advantage of it. @diabetic_techie
One of the best decision I made this year. Buy a 1yr subscription to @lynda @cybercaptive
guys lynda.com (@lynda) is the best. So far I’ve learned Java, principles of OO programming, and now learning about MS project @lucasmitchell
Signed back up to @lynda dot com. I’ve missed it!! Proper geeking out right now! #timetolearn #geek @JayGodbold
Share a link to this course

What are exercise files?

Exercise files are the same files the author uses in the course. Save time by downloading the author's files instead of setting up your own files, and learn by following along with the instructor.

Can I take this course without the exercise files?

Yes! If you decide you would like the exercise files later, you can upgrade to a premium account any time.

Become a member Download sample files See plans and pricing

Please wait... please wait ...
Upgrade to get access to exercise files.

Exercise files video

How to use exercise files.

Learn by watching, listening, and doing, Exercise files are the same files the author uses in the course, so you can download them and follow along Premium memberships include access to all exercise files in the library.

Exercise files

Exercise files video

How to use exercise files.

For additional information on downloading and using exercise files, watch our instructional video or read the instructions in the FAQ .

This course includes free exercise files, so you can practice while you watch the course. To access all the exercise files in our library, become a Premium Member.

Join now Already a member? Log in

Are you sure you want to mark all the videos in this course as unwatched?

This will not affect your course history, your reports, or your certificates of completion for this course.

Mark all as unwatched Cancel


You have completed Up and Running with RhinoCAM.

Return to your organization's learning portal to continue training, or close this page.

Become a member to add this course to a playlist

Join today and get unlimited access to the entire library of video courses—and create as many playlists as you like.

Get started

Already a member ?

Become a member to like this course.

Join today and get unlimited access to the entire library of video courses.

Get started

Already a member?

Exercise files

Learn by watching, listening, and doing! Exercise files are the same files the author uses in the course, so you can download them and follow along. Exercise files are available with all Premium memberships. Learn more

Get started

Already a Premium member?

Exercise files video

How to use exercise files.

Ask a question

Thanks for contacting us.
You’ll hear from our Customer Service team within 24 hours.

Please enter the text shown below:

The classic layout automatically defaults to the latest Flash Player.

To choose a different player, hold the cursor over your name at the top right of any lynda.com page and choose Site preferences from the dropdown menu.

Continue to classic layout Stay on new layout
Exercise files

Access exercise files from a button right under the course name.

Mark videos as unwatched

Remove icons showing you already watched videos if you want to start over.

Control your viewing experience

Make the video wide, narrow, full-screen, or pop the player out of the page into its own window.

Interactive transcripts

Click on text in the transcript to jump to that spot in the video. As the video plays, the relevant spot in the transcript will be highlighted.

Thanks for signing up.

We’ll send you a confirmation email shortly.

Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

Keep up with news, tips, and latest courses with emails from lynda.com.

Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

submit Lightbox submit clicked
Terms and conditions of use

We've updated our terms and conditions (now called terms of service).Go
Review and accept our updated terms of service.