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Old style Bombard oar holder (rare design, not produced anymore)
Old style Bombard oar holder with much reinforced walls and extra bolt for durability
3D printer parts and enhancements
Creative Commons Attribution Noncommercial Share Alike
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Description
Old style paddle holder for older Bombard inflatable dinghy boat. This is a drop in replacement for the older style Bombard oar holder, but is designed to be much stronger. The original piece is injection molded and only around 1,5 mm thick. This replacement part is 6 mm tick and has an integrated M4 stainless bolt in the stem for added strength, as the part is prone to cracking at the stem and the ring shaped section.
Materials and methods
Design by Fiber Printing, toughened up by Integral Molding and pictures taken at Budapest Homes.
Part list:
1 piece of stainless steel M4 bolt with hexagonal head, 40 mm long threaded section and 43 mm length over all
2 pieces of washers with an outside diameter of 11.5 mm
1 piece of M4 bolt
Printing
It is best to use a more tougher material as PLA as this part is structural and is subject to great loads while paddling. A good choice would be PETG or tough PLA. Nylon would be great as well but could be a challenge to print as the part requires support under the stem.
100% concentric infill, a high flow multiplier ratio and high temperatures paired with slower printing will make the part stronger.
Post processing
Remove the support, file blobs, insert the M4 bolt with washers and a nut, and tighten the nut.
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