Hydraulic Crane (Toys and Joys)

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Blog series by Dutchy updated 09-29-2015 03:32 PM 11 parts 37174 reads 65 comments total

Part 1: Overview

08-16-2015 11:10 AM by Dutchy | 5 comments »

A couple of mounth ago I started a new T and J project and promised to make a blog of the building process. This time I thought to post only the noteworthy things. I,m building a hydraulic crane (T and J drawing 126) It,s the biggest project till now. Unfortunately there are some mistakes in the drawings and that,s why the next blog entries are about the necessary improvements.

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Part 2: Mistake in drawing 1

08-16-2015 12:12 PM by Dutchy | 3 comments »

On page 126-4 there is a drawing of a cab, with the text (make L&R). This is wrong. The left and right door aren,t the same. See pictures below how you can solve the problem.

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Part 3: Mistake in drawing 2

08-16-2015 12:37 PM by Dutchy | 3 comments »

I Have to admit that my english is bad but also fractional measurement is hard for me to do. So I hope my calculations in the below picture are correct Thanks for watching.

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Part 4: Mistake in drawing 3

08-16-2015 12:53 PM by Dutchy | 2 comments »

In the drawing the side trim panel below the left side door isn,t mentioned. Thanks for watching.

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Part 5: Kerf making

08-16-2015 02:50 PM by Dutchy | 4 comments »

In the doors there are small 1/16” kerfs added . To achieve this I considered to make the door in layers but eventually I bought a Pheil cutting knife from 1/32” (1 mm) and curved it into the wood. Maybe 1/16 would have be a better width. Please let me know. There are also 1/16” (2mm) cutting knives. Benefit of this knives is that the knive widht almost automatic will be the kerf width. You may not believe me but in real it looks better than on the picture. ...

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Part 6: Crane boom

08-19-2015 07:11 AM by Dutchy | 8 comments »

According the plan the boom of the crane is equipped with spacers. But when the humidity change also the fitting will change. Therefore I made (wooden) springs. The boom is made out of ash. And ash is great for making a compression spring. Thanks for watching.

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Part 7: Hydraulic cylinder

08-29-2015 08:43 PM by Dutchy | 4 comments »

Last week I made two hydraulic cylinders. The cylinders should be able to hold the crane boom in position. Therefor I additional made a “clamping” ring from ash. First I tried to do this with a rubber ring but finally I prefered wood. (I,m making two cranes at the same time, that’s why sometimes you she two cylinders) Below you can see how it was done. Thanks for watching.

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Part 8: Mistake in drawing 5. Rear cabin.

09-11-2015 10:30 AM by Dutchy | 10 comments »

Another mistake in in the drawing plans. On the plan drawings (three times, different drawings) the rear cabin is drawed on the wrong position. This means that the boom can,t turn the total 360 degrees. I had to do some annoying demolition work. See pictures below. Thanks for watching.

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Part 9: Threaded shaft

09-22-2015 07:15 PM by Dutchy | 6 comments »

Below pictures from the threaded shaft. Maybe, when you like it, I will make a blog about how it’s made. Thanks for watching.

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Part 10: Threaded shaft explained

09-23-2015 08:08 PM by Dutchy | 7 comments »

Yesterday I posted pictures (first two) from the threaded shaft. In this blog you can see how it’s made. Thanks for watching

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Part 11: Finishing

09-29-2015 03:32 PM by Dutchy | 13 comments »

It was a beautiful and sunny day, and that came out well. I was ready with the small parts and also the glue work was done and in the backyard I could start with the varnish work. I hope that at the end of this week I can post it as a project. Thanks for watching

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