Project Code: Xray Delta Charlie. See code below.
Examine and make notations of current commercial technology and product offering levels.
Dismantle Parts to bare bones and see how they might readily be re-purposed.
Implementation of plan steps.
Current stage of plan.
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Reconnaissance: Commercial Available levels.
a. Basic 1. Crank handle mounted on a horizontal spool.
2. Brake to winch is axle nut tension.
3. Spool is mounted horizontally and boom is perhaps 18” long
b. Intermediate
1. The spool axle is bastioned on both sides.
The spool is mounted vertically.
The depth is controlled/fixed via a spool fixing pin rather than axle nut tension.
Often have integral rod holders.
High end. All of the above features and more; specifically raising and lowerng is done via an electric motor rather than manually.
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Yield of old Lawnmower parts. What is usable?
a. The boom would be one half of the old lawn mower handle. The handle is about 46” long and sturdy.
b. The base of the handle has a concave roll it it where the handle is fixed via a knobbed bolt.
c. The axles to the wheels have a split collar bearing. Or are made of steel directly interfacing with the plastic wheel.
d. The wheels are plastic with reinforced splines to width of wheel contact with ground surface. There is a rubber tread on the wheels.
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a. Determine desired length of boom.
b. Make a reinforcement plate to encapsulate the boom in the concave fitting.
c. Determine what type of pulley to use. A v notch would be best. But cost considerations might mean something lesser. Could a replacement part be purchased from a commercial model for this? Would it be as good?
d. Determine mounting system. See 3d below for mounting system considerations.
Code XDC: Convert broken lawnmower parts into a Downrigger for use in trolling type fishing.
Photograph Access Code: C7jX4dV3
3d: Downrigger mounting considerations:
How are the rods connected to the downrigger via the release to be mounted? Using existing rod holders? Is the Downrigger to be mounted for or aft of the rod holder being used for the rod connected? Should the downrigger be mounted in conjunction to the current hold holder? Should the downrigger be mounted integral to the current rod holder?
Down Rigger Mount
Existing
a. Oar Lock Socket
b. Rod holder sockets
To the upright posts of the existing rod holders.
d. Plate mount the downrigger to a boat seat.
a. Oar Lock Socket
Advantage: Existing.
Disadvantage: 1. Hull Stress.
Metal may “pop” broken.
b. Rod Holder Sockets.
Advantage: Existing
Disadvantage: Requires specific design and engineering. End result of such D&E unlikely favorable due to inability to fix it in place from turning.
Uprights of existing engineered rod holders.
Advantage. 1. Integral.
2. Very strong mount already.
3. Has a wood base that could be considered. For example, a plate mount.
Disadvantage: Require design and engineering. Size of downrigger would need to be minimized.
d. Plate mount of downrigger to boat seat.
Advantage: would be strong.
Disadvantage: What are the dynamics to the rod offset from it if rod holder not integral to downrigger?
Disadvantage: Too many additions already.
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Conclusion: Go with C. Uprights of existing rod holders. Factors? Will that spool fit in that space? Not to make the cranking handle too long whereby it interferes with rod mounted in rod holder. Go with a shorter boom. Any boom could always be made longer just by swapping that pipe out for a readily available longer one.
Plan C Engineering of Downrigger to vertical mount of rod holder. Best bet would be to bend 1/4” metal as per in diagram labeled “Key”
Make sure all viewers of this post have properly entered photograph access code in the comments of this post to view photos.
Project Status:
Considered Viable!!!
Handle has been cut in two potentially yielding two or more booms.
Awaiting determination of how long boom should be. Next step, make bracket labeled “key” and also see if wheel can be put on lathe and a center channel created. Parts dismantled and reassembled consistent with plan as displayed in photographs.
Time to completion; non determinate.
© 2022 Thomas Paul Murphy
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