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Operation Holtzapffel #6: Making Progress

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Blog entry by Damian Penney posted 03-26-2008 06:38 AM 1174 reads 1 time favorited 15 comments Add to Favorites Watch
« Part 5: Yup, that's sharp... Part 6 of Operation Holtzapffel series Part 7: Slow Going »

I’ve been making slow but steady on my bench. After getting my jointer knives sharpened I set about milling the stock for the legs. I’d noticed my dust collector wasn’t running as well as it once did and wondered were all the dust I’d been collecting since I bought it had ended up…

Dusty

Turns out it all goes into that big sack! So after getting that working I face and edge jointed all the parts for the base. Once that was done it was time to glue the two pieces that comprise the legs together. I’m not a man of many clamps so figured I’d crack open my vacuum press to do the job all in one shot.

This is my trusty vacuum press, built per joewoodworkers plans.

vacuum press

Here it is in action..

vacuum press legs

I could really do with some proper breather mesh for the top but I’ve found it works just as well if I throw some rags in there which is what you can see on top of the legs.

The vacuum pressing worked really well, producing a ton (literally) of nice even pressure on the legs. Which you can see at the bottom of this pile.

base components

So now I have all the bits for the base pretty much ready (and I’ve rough cut most of the pieces for the top too). I’m going to drum sand them to final thickness next week (I think) because my initial plan to use the planer was causing too much chip out in this crazy grained maple. After that I can get down to some joinery.

-- I am always doing that which I can not do, in order that I may learn how to do it. - Pablo Picasso



15 comments so far

View Lee A. Jesberger's profile

Lee A. Jesberger

6821 posts in 3444 days


#1 posted 03-26-2008 06:43 AM

Damian;

Looks good so far!

lee

-- by Lee A. Jesberger http://www.prowoodworkingtips.com http://www.ezee-feed.com

View Damian Penney's profile

Damian Penney

1141 posts in 3456 days


#2 posted 03-26-2008 06:52 AM

Big sticks are definitely smaller, now I just gotta make them big again :) Not sure why my SCMS was burning the maple on those crosscuts though, blade flex perhaps, just dull?

-- I am always doing that which I can not do, in order that I may learn how to do it. - Pablo Picasso

View Mike Lingenfelter's profile

Mike Lingenfelter

503 posts in 3579 days


#3 posted 03-26-2008 06:56 AM

Good idea with the vacuum press. I haven’t added that my shop yet, but maybe someday. It’s looking good, keep up the good work.

View GaryK's profile

GaryK

10262 posts in 3453 days


#4 posted 03-26-2008 07:05 AM

Those vacuum presses do come in handy!

-- Gary - Never pass up the opportunity to make a mistake look like you planned it that way - Tyler, TX

View Scott Bryan's profile

Scott Bryan

27251 posts in 3287 days


#5 posted 03-26-2008 11:48 AM

Damian,

This is coming along nicely. The vacuum press looks interesting. I will have to look into one myself.

-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine

View teenagewoodworker's profile

teenagewoodworker

2727 posts in 3233 days


#6 posted 03-26-2008 12:21 PM

this is coming along nicely. good idea with the vacuum press. i look forward to more.

View Thos. Angle's profile

Thos. Angle

4445 posts in 3427 days


#7 posted 03-26-2008 01:36 PM

Lookin’ good in the neighborhood

-- Thos. Angle, Jordan Valley, Oregon

View SPalm's profile

SPalm

5257 posts in 3347 days


#8 posted 03-26-2008 03:21 PM

Looks great.

Maybe the burning is caused by the wood shifting while cutting (of course dull also will do it). Have you tried clamping the workpiece whilst chopping? Could also be caused by the wood relaxing halfway through the cut. Solve this by cutting over sized by a bit and then re-chopping to final length.

I want a vaccum press :(
What did it cost you?

-- -- I'm no rocket surgeon

View Damian Penney's profile

Damian Penney

1141 posts in 3456 days


#9 posted 03-26-2008 03:44 PM

Could definitely be wood movement Steve, I did have the piece clamped, but only one side, and by a little clamp that’s part of the saw. Everything is over sized so I’ll see how the real cuts go.

I think I paid about $50 for the pump, and then another $120 or so for the bits and bobs that make up the kit, on top of that the bag itself was about $150. Not super cheap, but it’s a very versatile piece of kit, and lots of fun to use.

-- I am always doing that which I can not do, in order that I may learn how to do it. - Pablo Picasso

View kem's profile

kem

56 posts in 3183 days


#10 posted 03-27-2008 04:44 AM

Wow, that vacuum press is awesome! Yet another thing to add to the wish list.

I’m just starting on my Holtzapffel bench, so I’ll be watching your progress with interest!

-- Kevin

View Dorje's profile

Dorje

1763 posts in 3462 days


#11 posted 03-27-2008 05:58 AM

I didn’t realize the force you can get out of the press – a ton – literally? Wowzers!

This is really gonna start coming together now! Pretty exciting! I bet this step felt good…LEGS!

-- Dorje (pronounced "door-jay"), Seattle, WA

View Damian Penney's profile

Damian Penney

1141 posts in 3456 days


#12 posted 03-27-2008 07:56 AM

You get about 11lb/s per square inch from the press when its pulling 22hg of vacuum, each leg blank is about 180 sq inches which means 1980lbs of pressure per leg, 20lb’s short of a ton but pretty close :)

-- I am always doing that which I can not do, in order that I may learn how to do it. - Pablo Picasso

View Dorje's profile

Dorje

1763 posts in 3462 days


#13 posted 03-27-2008 07:59 AM

Amazing.

-- Dorje (pronounced "door-jay"), Seattle, WA

View lclashley's profile

lclashley

244 posts in 3579 days


#14 posted 03-27-2008 09:41 PM

I kind of wanted a vac press before this post, now I REALLY want one. Thanks for the great idea Damian.

View johnjoiner's profile

johnjoiner

160 posts in 3358 days


#15 posted 03-28-2008 09:29 PM

Hi Damian.

I’d also like to see more on your vacuum press when you get a chance. The plan by joewoodworker looks really nice. How did building it go for you?

-- johnjoiner

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