A problem with retractable screw of the CSS Alabama of revell

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Oct 31, 2024
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Hello everyone


This is my first consultation, it is about something that is complicated for me, until now to make holes I had used a hot or cold punch, to enlarge an existing one, the fact is that it is about making a hole , so that you know better what I am talking about, I am attaching a series of screenshots, which I hope can help in some way:

The fact is that I have a model of the CSS Alabama, from Revell, a model that is difficult to find nowadays and that from what I have seen, reaches very high prices online, this is the 2006 edition, the hull and the textures are very well done, but the hull, as is usually something normal in revell, especially in large 1:96 scales, is a copy of the kearsarge, as also happens with the Cutty sark/thermophila/Pedro Nuñes or the case of the Bounty/Beagle, when adapting it, modifications are made so that it resembles the real model as closely as possible, in this case with a mechanism for raising or retracting the propeller, but the original mold did not have the gap, since the The original ship (the kearsarge) did not have this mechanism, and the ship represented (the Alabama) does have it, but Revell, using the same mold, did not make the hole by default.

This is the screenshot of the instructions, it is the first step that must be taken, the fact is that the mold does not have the hole made in either of the two sections of the hull and it must be done.


IMG_20241105_133544185.jpg

This is how the propeller assembly would look from the inside, this is the propeller retraction mechanism, and the fork slides vertically through the propeller well.


IMG_20241105_1336308m29.jpg

This is how the propeller assembly would look with its normal operating appearance in propeller navigation.


IMG_20241105_133750m228_HDR.jpg

and this is how it would appear with its withdrawn appearance when sailing.


IMG_20241105_13380456m7_HDR.jpg

This screenshot shows one of the two halves of the hull and the area to be cut to fit the retraction mechanism.


IMG_20241105_1336m15612.jpg

I have found alternatives such as cutting the propeller fork frame and leaving it fixed, the operation would be like this:
IMG_20241105_133637109m.jpg

Here you can better see the discarded area, this would stick in the space of the propeller hole and remain fixed, without being able to retract, but simulating the mechanism in the navigation position. Regardless of how it is done, it has to be attached, or else the propeller will not be able to attach to the hull.

In this internet capture from a modelers forum you can see the solution that was adopted:

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In any case, how could the hole be made? What tools would I need? I tried to cut it with a cutter, but I only managed to scratch it, the plastic is extraordinarily thick and I don't want to break it.
I don't know how to proceed, I've never had to do something like this and I don't want to break the plastic trying it without first asking how to make the hole, especially considering that it is a discontinued model and is not so easily found.
 
I would drill a series of small holes (5mm?) as close together as possible, inside the cutting line. Then I would use a pointed craft knife or a small file to cut away the plastic between the holes until the unwanted plastic is released. The edges can then be filed back neatly to the cutting line.
 
Thank you very much Smithy for answering, I will try to make the hole first by painting to make the edges and then I will get up the courage to do it, tomorrow I will make the measurements of the piece to put them in the hole and I will transfer it to the plastic
 
The hole is already made, I think it is the first time I have done something like this, until now the models had not given me so much work to cut or sand or make a hole like that in the hull. Although the hole is made, I will use fine sandpaper to leave the edges smooth

IMG_20241106_155502192_HDR.jpg


Here in the screenshot you can see the hole, the hull is still unglued or painted, I will reduce the edges with fine-grain sandpaper, I have tested the propeller fork and it passes without problems with the propeller through the hole, the construction continue ^^
 
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