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An exercise in making wooden bar clamps #8: Reflections on the journey

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Blog entry by George_SA posted 644 days ago 2758 reads 1 time favorited 3 comments Add to Favorites Watch
« Part 7: The crank handles Part 8 of An exercise in making wooden bar clamps series no next part

I have one working clamp and five in the last stages of finishing, so the journey has not quite ended, but it has progressed far enough for a final blog entry.

I found this an interesting and satisfying journey with some knowledge gained and skills improved.

Insights gained: 1) This journey took longer than I at first anticipated, but isn’t that part of life? Projects are almost always over budget and they take longer than planned. Fortunately I did not make a specific budget for this project and maybe that is why the overall costs for this project is fairly low. Items I had to purchase was, the threaded rod, nuts, washers, poly finish and some dowel sticks. Al in al I estimate about R200 to R250 ZA ($25 – $30 US) which is not bad for six bar clamps that would have cost me about R2000 ZA ($250 US) if I had to buy them.

2) Some aspects of the making becomes tedious when making a batch of six clamps, especially when you have to make up batches of six and twelve components. However, if I did not take this route I would only have had one or two at the most.

3) Some planning before I started has payed off. My plans provided good direction signposts during the journey, even though I deviated from them slightly as I went along.

4) My experiment with back block payed off. I decided to use wood in stead metal for the holding bars. The tests so far show they are quite solid, though only time will tel on how they hold out in the long run. If they do fail at some point, it wont be too much of a hassle to replace them with beefier wood or metal.

5) If I had to go this route again, I will not use normal pine for the bars as the knots tended to introduce warps end bend bends in the bars that had to be planed out. I don’t have a jointer, so this proved to be quite a bit of a task. I got some practice using my stanleys though, so it is not all bad. My skill with hand planes still has a lot of room for improvement, thus the final result is not as good as it would have been from a jointer. For now, however, I think they are straight enough, even though they are not perfect. I worry that in future some warpage will return. I put a good coat of poly on to hopefully prevent this. This happened in spite of the me having the pine slab for many years. I had hoped that it was seasoned enough so that there would not be wood movement after cutting. Unfortunately there was quite a bit of wood movement. In the future for a similar project I will rather go for a fine straight grain hardwood, even though this may cost a bit more. In the end it will still be cheaper than shop bought clamps. The two clamps that I cut from the Origan pine door post are quite straight. Maybe this is because of the finer grain pattern of Origan pine.

All in all, I enjoyed the journey and would recommend it as a worthwhile endevour.

The final project post is over here.

-- There are some things that money can't buy - Manners, morals and integrity



3 comments so far

View Dennisgrosen's profile

Dennisgrosen

10850 posts in 1710 days


#1 posted 643 days ago

thanks for taking the time to make and share both the blogserie and the project
well done

Dennis

View Dave Rutan's profile

Dave Rutan

290 posts in 783 days


#2 posted 643 days ago

A Great build. These are a good combination of function and beauty.

-- Ni faru ion el ligno!

View Roger's profile

Roger

14083 posts in 1399 days


#3 posted 643 days ago

A very gr8 blog and build. Appreciate all your photos, and what you did. Very well done. Very good lookin clamps.

-- Roger from KY. Work/Play/Travel Safe. Kentuk55@bellsouth.net

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