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Forums - Site / Build Logs |
Messages in this Build Logs forum are automatically posted when new Build Logs or Chapters are added. Other modellers can then comment on them. Refer to the Build Logs section for more information. |
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| Subject: | [Chapter] Chapter 8 - Hull and Suspension Step 3 |  |
| Date: | Mar 27, 2004 |
| From: | Leo Lee | |
Chapter 8 - Hull and Suspension Step 3
The drive sprockets are 5mm too far back because Trumpeter got the size and shape of the rear hull wrong, the lower corner is something like 3mm away from where it should be. Look at the Fig. A to see the original position of the sprocket housing base plate, this is the faint line in the centre of the red box. Trumpeter, seeing that they had the bottom of the hull too far out, retooled and made a smaller base plate and housing. The outcome is a sprocket that is 5mm too far back and a rear hull that is too steep. This is why in their instructions Accurate Armour state that it is almost impossible to correct. If you move the whole thing forward, so that they measure correctly from the last road wheel, without modifying the rear hull, you will end up with the sprockets too far from the rear hull.
I fixed the sprockets before correcting the rear hull. In Fig. A the sprocket housing is removed. Then I rebuilt that base according to the "residual mould" line. Usually styrene sheets can do the trick but I wanted to use something stronger. I bent brass wire following the residual mould line as a guide, and glued the brass frame to the hull with a tiny drop of CA glue. I then applied epoxy putty within this frame and sanded it flat after curing. (Fig. B). I will remove the brass wire when the epoxy is totally cured.
For the housing I rolled epoxy putty around an old ballpoint pen. After the putty cured I cut it into two along the red line in Fig. C. I then sanded them to 16mm diameter, sculpted groves on the edges, the finally glued some nuts in these groves. I didn't bother doing these in a very detailed way as not much will be seen after the sprockets are attached. |
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