After a five hour 38 minute 3D printer run the engineer side trailing truck frame was completed. The part appears to be near perfect. For this run the part was rotated in "Z" axis on the build platform so the raft and supports were much shorter segments as shown above. The shorter segments did not lift except slightly at the extreme left of the part in the photo. Despite lifting at the left, the top of the part was level and no distortion was apparent.
After removal of the green ABS support material, the drawbar at the pivot end was design shape and expected thickness. The part at left is the 2nd run and the 1st run is at right. The pivot section is thinner than it should be and appears slightly twisted.
The upper part is the first run and the pivot end is bent downwards too much. The second run part in the foreground is properly aligned and full size.
The first run part in the foreground has a heavy coating of support material that does not come off readily. The lower end of the pivot part is thinner than design. The second run part in the background is design shape. The pilot hole for jointing the two frame halves is better defined and circular on the second run part.
The balance of both parts is very nearly the same with less distortion and twist of the front end of the frame of the second build near the pivot region at left.
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