Build Diary entries for March 2024
Here are the diary entries for this month. You can use the forward and backward links to see the next or previous months. Most photos taken before 2018 are small size. From 2018 onwards, most photos you see below will have a link to a full size image by clicking on the photo.
| Fitting the Dragbox |
| 18/03/2024 |
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Our job today was to ensure that the dragbox was sitting firmly against the back of the frames. We used 4 ratchet straps to pull the dragbox firmly against the frames and then ran a 0.0015" feeler gauge down the join between the dragbox and the frames. This showed that there was only limited contact. Here you can see that John has applied raddle (as used at Crewe Works) to the dragbox. We have then installed the dragbox and pulled it tight against the frames. After removing the dragbox, you can see how the raddle has transferred to the high spots on the frames. John is working on the frames with a file and a grinding stone. After about 4 repetitions of this process, it was agreed that the fit is satisfactory. As we can't drill the holes for bolts that pass through the gussets, frame plates and dragbox in a single pass (access through the gussets is difficult), we now need to manufacture a drilling jig. We will use the jig to drill the holes in the dragbox and frames as one operation and the gussets as a second operation. |
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