A New Beginning: Design & Build from scratch... #4: Two Steps Forward, One Step Back.....

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Blog entry by Chris posted 08-01-2008 08:10 AM 12067 reads 0 times favorited 4 comments Add to Favorites Watch
« Part 3: The Top - It has a story of it's own Part 4 of A New Beginning: Design & Build from scratch... series Part 5: A Half Step Forward, This is starting to sound like a square dance...... »

So, after getting started on rough dimensioning the lumber I decided to go back to the drawing and complete the prototyping in Sketchup. I have added the corner blocks / braces to firm up the leg to apron joint (that should resist racking; correct?). I have also created the Drawer guides/glides and have them placed in the drawing. I’m pretty much flying blind other than some reading I’ve done. Also, does anyone know of a decent tutorial for using intersect in Sketchup?

Does any of this look wrong?

-- "Everything that is great and inspiring is created by the individual who labors in freedom" -- Albert Einstein

4 comments so far

View grumpycarp's profile


257 posts in 4761 days

#1 posted 08-01-2008 10:01 AM

Well just looking at it the first thing that leaps to mind is that looks to be like a mighty thin drawer.
Assuming your apron and drawer guides are 3/4” material (just guessing) then I would guess that the apron is about 2 to 2 1/4 inches? Less the 3/4” for the bottom of the drawer guides and we’re down to 1 1/2” assuming you leave NO material in the apron above the drawer. Groove the drawer proper 1/4” above it’s lower edge and using only an 1/8” bottom you now have a drawer that is 1 1/8” deep and rubbing on the underside of your top, and only 3/4” on the underside of the apron to support the load. Beef it up and leave even just 1/2” at the top of the apron/drawer opening you would have a drawer that is now only 5/8” deep! If it is a desk and that is a pencil drawer then you’re in there but if you toss your pencil on top of a Pink Gum eraser you might be asking for a stuck drawer. At that point I think the addition of the corner blocks is moot . . . <bg>

And not that it matters unless you turn on the “shadows” function but the blue part is supposed to be the “Sky” and the grayish brownish part is “earth”. So you would definitely want to seal the “bottom” of your “top” . ;-) I’m guessing that you drew this in the default “architectural” template and not the “woodworking” template (and then flipped it upside down). There are defaults for both. I made my own with tweaks to the default accuracy toggle for the latter. Drop a line and I’ll send them to you. There are tutorials for doing just that online at Google and they may be reached from the help menu (F4).

I hope you take this with a grain of salt and perhaps a libation. I am not making fun of you I’m experiencing De ‘ja vu. (however it’s spelled Frenchie) I have made and make so many mistakes, so many times that now I’m seeing re-runs. Good on you for jumping in. If I can help (and I have the time) I will gladly help. If you could send me the file that would be best.

As to the question of using the intersect command it would be helpful if you stated the context that you wished to use it. As you are building a table and I am again assuming that you plan to use mortise and tenon construction for the leg/stretcher assembly. I tried to use the intersect command to make the M & T joints come together. Seemed reasonable, Failed miserably. Read the manual and now I know not that that’s not what it’s for ;-D So posting your question in context can get everyone thinking about your issue moving in the best path.

Good on you for making the effort.


View Brad_Nailor's profile


2545 posts in 4973 days

#2 posted 08-01-2008 02:04 PM

Hey Chris
I think you have a great start here. I agree with Dan that you might want to re think your design on the apron size/drawer. If you make the apron bigger, then you will have more room for a deeper drawer. Coming from a cabinet making background, I would use Accuride full extension drawer slides myself…but I know allot of guys like the “all wood” draw slide configuration.

As far as the drawing is concerned i think it looks good. You have the design worked out for the most part. At this point, I am wondering if you used groups/components when making the pieces? As Dan was asking what exactly did you want to use intersect for? It looks like you might be wanting to use it to make the dovetail way in the apron for your draw stretchers? Thats easy..I would make my draw stretcher with the dovetail set up the way you want it. Make the stretcher a group, but not the back apron. Move the two pieces together and line up the joint the way you want it. Then select both pieces, right click and select intersect with model. Then back the stretcher out and you should have lines representing the sides of the dovetail in the apron. Erase the faces you don’t want and you will have to draw lines connecting the top corners of the joint with the lower corners. This will also heal the inside faces and then you should have a matching dovetail joint!


View Brad_Nailor's profile


2545 posts in 4973 days

#3 posted 08-02-2008 01:41 AM

Thats what I love about CAD programs..there is as many ways to do things as there are people to think them up! Thats a great idea using the push pull tool. And I didn’t state it in my post but the second Dave did…it always helps to use groups/components…really speeds up drawing time and cuts down on mistakes.


View Chris 's profile


1880 posts in 5006 days

#4 posted 08-02-2008 02:29 AM

So… I have not found a clear definition; Why would I us “Group” over “Component”? Can a component be part of a group?

-- "Everything that is great and inspiring is created by the individual who labors in freedom" -- Albert Einstein

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