Computer Modeling of Woodturning ... by Turnedoutright

Carved Plate

2009-04-15T21:49:00.000-07:00

Wonder how the modeled chip carved plate turned out/
Well here it is.

Unity Candle

2009-04-09T18:08:00.000-07:00

The unity candle project has started.

The model above was done using the Virtual Lathe in "Woodturning with Sketchup".

Chip Carving with SketchUp

2009-03-25T12:23:00.000-07:00

Its nice to be able to add surface treatments to wood turnings. What is even more NICE is not to have to hand draw them.
I recently started up my "chip carving" skills and you will see some highlighted on my up and comming humidors like the last post on "Threaded Vessels".
SketchUp is an ideal tool for chip carving patterns because it is good at repeating geometries, sizing, printing to scale etc. which is what chip carving patterns are all about.
I just open my "Virutal Lathe*" and use the quadrile pad for a 2D drawing space. Then I print it full scale followed by tracing (with grafite paper) it on the surface of the blank.
The initials on the Humidor over at "Turnedoutright" are chip carved on a Basswood medallion then affixed to the humidor.

*The Virtual Lathe is the workspace that comes with teh book "Woodturning with SketchUp".

Threaded Vessels

2009-03-06T22:47:00.001-08:00

I just started working on a new technique for making vessels that seal.

Turning threads in vessels is certainly a skill as well as an art form, but sometimes the movement of wood prevents good seals due to poor thread engagement.

I wanted to make a humidor so I started modeling ways of using PVC fittings for the closures.
This prototype use a staved design, made of pine. Its threads come from a 5 inch pvc threaded pipe coupling. The top has a lens from an old big screen TV. The inside will be veneered with Spanish cedar. Maybe some chip carving as well ......

Below are pictures of my progress. I will keep this site updated.

The workspace where the components were modeled.

The assembly notice the PVC threads and the lens in the top.

The real thing with the shop drawings to the left .

Universal Remote

2009-01-29T19:48:00.000-08:00

After seeing the number of remotes needed to control my new in home theater I decided to see if I could the solve the problem with a low tech woodturning solution.
As usual I called upon SketchUp and built a model and then turned the ultimate in "Universal remotes".
You can WATCH THE VIDEO on the Turnedoutright channel or read the post on Turnedoutright

Christmas Ornaments

2008-11-22T08:16:00.000-08:00

I noticed that at the holiday time everyone likes to turn "inside out" ornaments.
So I decided to see if you could model it.
Below is my first try. Haven't yet figured out how to turn the outside profile.

Eucalyptus Clock

2008-09-24T10:42:00.001-07:00

A clock turned from Fiddleback Eucalyptus.
It was first modeled in SketchUp.
More detail at www.turnedooutright.com

Modeling "Leaf Extraodinaire"

2008-08-22T23:57:00.000-07:00

In this months issue of American Woodturner Tim Yodler teaches us how to turn a "German Ring turning".

I couldn't leaf this idea alone, I just had to try and model it. I haven't tried turning it yet but I think that turning is way harder than modeling it.

This model made my PC groan! Below are some hints on the process.

The finished model

Turn it on the Virtual Lathe

Imported a leaf graphic to use as a model.
Draw with line tools over it on the grid insuring it was "closed".
Then "turn it" on the virtual lathe

Getting the 1/8 section

Group and copy the entire turning to the right of the lathe
Insert 4 panels into the truning to create the angled surfaces
Select it all and ungroup every thing
With it all selected "intersect" it
Delete all the surfaces except for one 1/8 section

Getting the 1/8 section

That was fun! Now I need to turn one, not so easy?

Donnie

Holy Water Font

2008-08-10T10:24:00.000-07:00

I just completed the Holy Water Font. Above you can see the model and the finished project.

This project included many disciplines, woodturning, inlays, guilding and metal spinning.
In this post I will focus on the modelling part of the project. Turning details can be found at Turnedoutright.com.

View Extents

Above you can see all the objects of the model. The main part of the models object can be seen on the virtual lathe. These parts were assembled and colored to the right.

Turning at the Virtual Lathe

Seen in this close up all the components were modeled in the round. Then the halfmoons (lower right and left of the back) were subtracted from the back by intersecting 3D circles with the model. Note: I decided not to use these in the real model. Also the ring that held the AL dish was designed with a solid bottom but I made it an open ring during turning since I was afraid it would retain water.

The Rings

The rings were also modeled in 3D. I decided to use the flat model on the right for the actual carving but used the 3d version on the left for the model printouts.

The AL Dish

This story stick printed full scale was used to make the spinning mandrel.

The Final Assembly

Above you can see the final assembly, where the fit was tested.

More turning details at www.turnedoutright.com

Go buy the book "Woodturning with SketchUp"

Here is a challenge for you!

2008-08-03T21:58:00.000-07:00

I did this staved vessel model using SketchUp.

Let me know if you figure out how to do it or one beter. I'll post your accomplishment.

SketchUp Plugins

2008-07-05T06:40:00.000-07:00

I like to watch the blogs looking for new SketchUp plugins.
I've created a window Box.net folder so that you can easily get to them.

Note that in the MENU of the window you can subscribe to a feed that will notify you when new plug-ins are available.

Enjoy!

SketchUp for Dummies

2008-06-27T18:33:00.000-07:00

A couple of users have asked about a starting book on SketchUp to use prior to "Woodturning with SketchUp".

Here is a link to "SketchUp for Dummies".

It is available at most book stores.

Free Depth Gauge

2008-06-21T00:08:00.000-07:00

SketchUp is a great application to use for designing tools.
As an example, here is a depth gauge that I built for my lathe.
A full explanation and a free copy of the model is posted on the turnedoutright site.

Mothers Day Music Box

2008-05-03T19:44:00.000-07:00

The music box is complete.
This project could not successfully have been completed without modeling. Just one more example of how SketchUp and "Woodturning with SketchUp" can broaden your capabilities.
Note the video on the side bar and on the turnedoutright woodturning channel.

More posts in this blog on the Music Box:

RSS feed works!

2008-04-21T10:04:00.001-07:00

The RSS feed for this site is now working.... I think!
Ignore all other posts and addresses.
Let me know by comment it doesn't work for you!

Its on the side bar under "Click here to subscribe to this sites feeds!

Donnie

Feed from this site

2008-04-16T07:03:00.001-07:00

I got a VMAIL today pointing out that there isn't a rss feed on the site.

Good point!
I am trying to get one to work (see sidebar) :(

In the mean time you can use the RSS feed button in the address bar in your browser to subscribe

Alternately use this address, loading it into your reader:

www.turnedoutright.blogspot.com/rss.xml

Thanks for the call.

SketchUp Recognizes Woodturning

2008-04-14T09:36:00.000-07:00

This week we got an awesome mention in the SketchUp blog.

This is great exposure toward the advancement of "3D Woodturning Modeling".

"I was just alerted to the presence of a really neat blog about using SketchUp for woodturning. It's called Turnedoutright, and it's worth a look -- even if you're not a woodturner yourself. The SketchUp models are outstanding."

Thanks to Aidan Chopra

The Music box is completed, watch for final post on the project.

You can get a copy of the "Woodturning with SketchUp" @ the turnedoutright store.

Music Box Lid: Chip carving

2008-03-17T12:33:00.000-07:00

The music box project is progressing along as planned.

I got to the point where the lid was turned.

I was pleased with the lid but realized that some surface treatment would add a nice touch.

So I went back to SketchUp and modeled a pattern to carve on the lid.

IT WAS EASY TO DO:

Draw out a circle the size of the lid, this also provides a drawing plane
Add an internal circle that matches the center (not to be carved) of the lid.
Divide the circle up with the protractor into four quadrants
Use SketchUp drawing tools to make a pattern in one quadrant
Then copy and flip it into the other quadrants.
Print full size
Lay over lid and trace the pattern with graphite paper
Carve away!

Soon I will post the completed project on turnedoutright.

Donnie

Tip: 3D story sticks

2008-03-08T15:53:00.000-08:00

Last night while I was finalizing the music box plans I discovered an easy way to make a story stick on the virtual lathe that is actually a full size 3D cross section.

The following instructions assumes that you have read the book "Woodturning with SketchUp" available on turnedoutright.

To review, one of the useful things to do after you competed your computer design is to print a full scale drawing of the turning. This story stick allows you can take measurements directly with your caliper. I don't like to have to do math when I'm standing in front of the lathe, no not even multiplying by 2x :)

Normally I print a cross section view (requires that I multiply measurements by 2x) or a 3D view (doesn't show internal dimensions) and go to the shop.

Better approach:

After drawing the cross section make a copy to the right of your original and render it in 3D, all on the "grid background".

Then click on the cross section tool [Menu: tools/section plane] and drag it to the "Grid Background" plane and click on an intersection of the grid lines. This will put the crossection on the same plane as the grid and therefore it will show up on your story stick.
SketchUp will slice the rendered pieces at the centerline of the lathe showing internal and external dimensions in full scale.
Print full scale and take to the shop.
Now all your measurements can be taken directly by setting your caliper to match the drawing.

Donnie

New Sketchup Video Links

2008-03-08T08:29:00.000-08:00

I have added a couple of really good SketchUp video links under Useful links in the sidebar .
This is a great place to learn, refresh and update your SketchUp Skills.

Here is the link to the new turnedoutright UTube Channel

Enjoy!

"The Mothers Day Music Box Model"

2008-02-18T10:11:00.001-08:00

Its not to early to start the planning for your Mothers Day turning!
I decided to take on another modeling and turning challenge.
Inspired by the book "Masterful Woodturning" (ISBN 0-8069-8709-X). I decided to combine woodturning and music boxes.

Design goals for the Music Box project:

Box with a removable lid
Made from a burl
Music box hidden inside
Animation
Wind the music box without opening top
Pleasing shape

This is a unique challenge because I wanted to make the top rotate with the power of the music box as well as using it to wind the mechanism.

This meant that the box would be multiple pieces that would need to fit together with relatively tight tolerances.

Here is how the entire project was then modeled on the Virtual Lathe in 1-1 scale.

Step1:
The music box itself was modeled. It became obvious that the center of rotation of the music box was offset. This meant that the bottom would have to be quite a bit larger than the music box.

Step 2:
Just as if you had sliced the final assembly down the middle, draw the 1/2 cross section of the entire assembly on the grid making sure to interpose all the components like they will fit in the final assembly. In this design there is a music box, base, top, finial and coupler. Notice how the model of the music box is used to get the dimensions correct in 2 and 3D.

HINT:I like to create the cross section first then perform a few trial and error renderings by rendering it then "undoing". After I get the design the way I like it I make a copy of the cross section to the right on the grid. Always keep at least one copy of your 2D cross section "un-rendered" so that you can come back later and make modifications. You will also need the 2D version of the model to make a story stick.

Step 3:
This project has multiple components so make a copy of the 2D cross section to the right and then separate the components horizontally into individual pieces. Render them as four 3D components.
HINT: An easy way to do this is to select the line segments that belong to each individual component and group them. Then move all that components line segments as a group. Once the components are separated on the grid render and group them as individual 3D items. Then group all the 3D groups before you copy the entire assembly to the right off the lathe.

Step 4:
Move and copy the entire assembly to the right and then rotate it vertically. Note the music box offset in the bottom so the shaft is on the center line of the top.

Step 5:
Make yet another copy of the entire assembly. Explode it into separate grouped components. Then assemble the music box using these components to give a final view.

Step 6:
Using the section tool create a sectional view through the entire piece to check for internal interferences. As you can see the coupler has a problem it seems to long!

Step 7:
Using the dimensions from the 2D cross section as my guide, I found some redwood burl the right size. I guess its time to go to the shop!

Enjoy!
Donnie

Go to the Turnedoutright WebShop!
Go and get the "Woodturning with SketchUp" book

Tutorial on "Woodturning with Sketchup

2008-02-18T07:34:00.000-08:00

I have been working on ways to better introduce my book "Woodturning with SketchUp".

Click on the UTube video in the side bar to review the tutorial or click here: Tutorial on "Woodturning with SketchUp".

Innagural post

2007-11-02T06:01:00.000-07:00

This blog will be dedicated to discussions on modeling wood turnings and is affiliated with http://www.turnedoutright.com/.

I have developed methods within Sketchup to model wood turning and the software is free :)
More soon.

Donny

A book on this is available at http://www.turnedoutright.com/store/modelling-woodturning/.