Advertise on Bikeforums.net



User Tag List

Results 1 to 7 of 7
  1. #1
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    3,335
    Mentioned
    48 Post(s)
    Tagged
    0 Thread(s)

    FYI Cargo cycle design using modular construction


  2. #2
    Senior Member FedericoMena's Avatar
    Join Date
    Dec 2013
    Location
    Xalapa, Veracruz, Mexico
    My Bikes
    Viruela, Piccola
    Posts
    127
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks! Low Tech Magazine is always full of awesome.

  3. #3
    Humvee of bikes =Worksman Nightshade's Avatar
    Join Date
    May 2004
    Posts
    5,307
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    With all the various fasteners being used to build a bike like this joint loosening is a BIG problem!!!
    My preferred bicycle brand is.......WORKSMAN CYCLES
    I dislike clipless pedals on any city bike since I feel they are unsafe.

    Originally Posted by krazygluon
    Steel: nearly a thousand years of metallurgical development
    Aluminum: barely a hundred, which one would you rather have under your butt at 30mph?

  4. #4
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    3,335
    Mentioned
    48 Post(s)
    Tagged
    0 Thread(s)
    thread lock and nylok nuts FTW

  5. #5
    Senior Member Cyclosaurus's Avatar
    Join Date
    Aug 2013
    Location
    Chicago Western 'burbs
    My Bikes
    1993 Mt Shasta Tempest, 2011 Motobecane Fantom Cross CX, 2012ish Dahon Speed D7
    Posts
    510
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Yeah they freely offer the plans for the recumbent models, but they're not sharing them for the cargo bike and trike. Bummer. I would love to build the cargo trike.
    Whenever a theory appears to you as the only possible one, take this as a sign that you have neither understood the theory nor the problem which it was intended to solve. -Popper

  6. #6
    Transportation Cyclist turbo1889's Avatar
    Join Date
    Aug 2011
    Location
    Montana U.S.A.
    My Bikes
    Too many to list, some I built myself including the frame. I "do" ~ Human-Only-Pedal-Powered-Cycles, Human-Electric-Hybrid-Cycles, Human-IC-Hybrid-Cycles, and one Human-IC-Electric-3way-Hybrid-Cycle
    Posts
    1,206
    Mentioned
    7 Post(s)
    Tagged
    0 Thread(s)
    For a person without welding skills that might make a lot of good sense.

    But for someone like me with welding skills all I see is the huge amount of unnecessary weight added by all those bolts, nuts, and washers. I would be willing to bet a 5-pound box of good quality 1/16" size E308-16 welding rods that with all the added weight of the bolts, nuts, and washers it increases the weight of the frame by over 50% compared to an identical frame made by welding the joints rather then using all those bolts, nuts, and washers. Granted welding adds a little weight beyond the bare weight of the tubing alone but not near as much as using bolts, nuts, and washers. Not to mention cost and strength issues, generally enough welding rod to do the job is going to run you less money then using bolts, nuts, and washers like that and if you do a good job with your welding it will be stronger then if you drilled through the tubes and connected them with bolts like that.

    Plus if your do it like I generally do and use 304 stainless thin wall tubing with the E308-16 rod (or wire spool if your a MIGer) then you end up with a rust proof frame as well. Unless you buy stainless bolts and hardware ($$$) in time all those bolts are going to start rusting especially if you ride in winter where they use salt.
    Last edited by turbo1889; 06-01-14 at 08:21 AM.

  7. #7
    Transportation Cyclist turbo1889's Avatar
    Join Date
    Aug 2011
    Location
    Montana U.S.A.
    My Bikes
    Too many to list, some I built myself including the frame. I "do" ~ Human-Only-Pedal-Powered-Cycles, Human-Electric-Hybrid-Cycles, Human-IC-Hybrid-Cycles, and one Human-IC-Electric-3way-Hybrid-Cycle
    Posts
    1,206
    Mentioned
    7 Post(s)
    Tagged
    0 Thread(s)
    Modular idea using bolts to connect modules in and of itself isn't a bad one though.

    I'm thinking a rear drive module with the main frame triangle and seat and rear wheel and then various front cargo modules that can be mixed and matched. Tadpole trike front end module with cargo basket between the front wheels. Short wheel base over the front wheel cargo rack module. Medium wheel base length front box bakfiets module. Long wheelbase low-boy extreme cargo hauler flat bed front module. Etc. . . .

    And just use half dozen at most bolts with washers and nylon lock nuts to bolt on whatever front cargo module you needed to the main rear drive module. That could work out very nicely.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •