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[技术] 纸管机身的制作

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发表于 2011-7-2 06:54:18 | 显示全部楼层 |阅读模式
Here's our cunning jig for assembling 90-degree junctions, with a sample joint reinforced with paper brackets. We kicked off by using Superglue for these reinforcements, but weren't satisfied with the strength and later abandoned it in favour of two-part epoxy.
fuselage_01.jpg
To get a really straight cut, we fished a mitre block out of the toolshed, although you can get an accurate enough finish with a pair of scissors.
fuselage_02.jpg
Here's the first joint for the top of the fuselage:
fuselage_03.jpg
And the whole thing beginning to take shape:
fuselage_04.jpg

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 楼主| 发表于 2011-7-2 06:55:38 | 显示全部楼层
Next up, we bent the aft section of the fuselage to shape and secured it at the tail:
fuselage_05.jpg
We then began to reinforce the stucture with x-braces...
fuselage_06.jpg
,,,which we put together using this high-tech method:
fuselage_07.jpg
Here's the top of the fuselage with the rudder post in place:
fuselage_08.jpg
 楼主| 发表于 2011-7-2 06:56:52 | 显示全部楼层
With that done, we moved on to the floor of the fuselage...
fuselage_09.jpg
...and prepared to join it to the top:
fuselage_10.jpg
What you can't see above or in the following snap are the guides to ensure the fuselage was square before glueing, but trust us - it is.
fuselage_11.jpg
We then attached the floor longitudinal struts to the rudder post...
fuselage_12.jpg
... and began to add some reinforcing structure:
fuselage_13.jpg
 楼主| 发表于 2011-7-2 06:58:06 | 显示全部楼层
Here's the thing pretty well done, posing with the APRS/GPS telemetry transmitter:
fuselage_14.jpg
Some of you are probably wondering why there's a big hole at the front of the fuselage's port side, so we'll explain with the help of this snap:
fuselage_14a.jpg
Here you can see the temporary void, marked in blue, through which we'll be inserting the Vulture 1-X tracking payload. This has proved a bit of design headache, since the main wing spar will pass as indicated by the green arrow.
The red silhouette shows the eventual position of the APRS/GPS unit inside the fuselage. It'll be encased in a styrofoam block, with the top of the GPS chip (A) exposed and facing up. The aerial (C) passes aft.
Simple enough, but we need access to both the data connection board (B) and the three-pin connector (D) into which the battery lead (E) is plugged immediately prior to flight.
The data connection board's USB socket will be accessible through the fuselage's starboard side, while the battery connector will sit just aft of the wing spar. Accordingly, a small hatch in the roof will let us get at it.
The onboard miniature camera and cockpit will be fore of the wing spar, and we've left the nose off for the time being to allow us to fit those easily.
Finally, here's the whole fuselage with reinforcing brackets in place. We just need to clean up the excess glue and the job's a good 'un:
fuselage_15.jpg
For the record, this section is 54cm long and weighs just 57 grams, although it's still lacking its external skin. Just how to skin the aircraft is our next major challenge, and we'll ponder that while lovingly teasing the APRS/GPS unit into place. More soon.
发表于 2013-9-5 18:30:36 | 显示全部楼层
现在看来人们偏爱用木条,纸管这主意适用于穷屌丝吗?
发表于 2014-9-9 15:57:56 | 显示全部楼层
资料真不错!谢谢!
发表于 2014-9-23 17:35:28 | 显示全部楼层
谢谢楼主模友!
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