Recumbent trike diy plan -atomic -zombie

The REALISTIC Bike Mini-RV / Camper. Design & Build Post

2023.03.04 20:16 Aazardian The REALISTIC Bike Mini-RV / Camper. Design & Build Post

The REALISTIC Bike Mini-RV / Camper. Design & Build Post

Yes tents exist. This is the "Vagabond-500, Nano-RV", Sleeps 2

What pulls this? this does, a 10Kw to 11kW Full Fat Recumbent Electric Trike:
  • Obviously an over extreme example, a pedal bike could pull it, even if its a fairly heavy load
  • If its too heavy via pedal for you, cheap "DIY E-Bike" front wheel kits exist ($95 for a 250w online)
  1. Off Road
  2. On Road (Claims only 50mph... but I'm pretty sure it exceeds 62mph, or 100km/h)
DIY & New materials, you could still build this for about $1500 in 2023 (plus cost of tools used)
  • $2000 total, if exteriointerior are well finished
  • Cheaper Rigids: Bootstrap Cube is $100, Nomad is $300, Drew Builds Stuff Solar Camper is $1000
  • Plated Rigids: 8ft Vetsport/Wombat is $2500, 10ft Wander is $7500, & 12ft Campster is $10000
HF/IT Brand (& VIN'ed) trailers are heavy, costly, for larger road vehicles & not ideal for bikes/E-bikes
  • Canada: $1250 8x4 trailer, must be pre-purchased, VIN register, Pick it up with papers/plates! RIP OFF, and government red tape (even a pro trailer builder needs a government ticket)
  • Unneeded: I dont plan on attaching this to a plated road vehicle (bike/e-bike only)
  • Same too much $$, for any "Wanderer" style Mini-RV's designed for these 8x4ft to 8x10ft trailers
  • "Wide trail/Street" Bike/E-Bike trailers up to 15x5.5x5ft (clearance under 1ft) don't need a VIN (or plates)
  • Load balancing, Rear strobe, all round reflectors & a trailer flag are required, I would add brake/turning signal lights & a Front "caution/hazard" strobe to this (in case of break down)
Design Phase: Running ("Living") Summary, so far:
  • 15x5.5ft Ultra Heavy Duty Bike trailer (ala custom "Bikes at Work" type / Pico Chassis Combo)
  • 5x10 Cargo bed, slight load overhand for drainage access
  • 12x5.5x4.5ft Exterior, "All Smooth Fiberglass" Finish on R30 (4 Season) SIP 3 inch thick walls
  • 11.5x5x4.25 Interior, at Total: 57.5sq ft
  • Wet room showemini-cassette toilet, of an included 6.25sq ft
  • Tongue "V-Push" front mechanical closet and aero-body, multi level, additional at 10.5sq ft
  • Ground Clearance 10 to 11 inches, can quad-stand at 15 inch stationary
  • Equipped Weight, with safety: Dry: 350lbs, Wet: 400lbs
  • GVWR, with safety: 500lbs (250lbs wheel/tire/innertube rating, x2) moving (quad-stands: 800lbs)
  • Do not exceed: 35km/h (can handle up to 60km/h, but breaking/stopping/wind will be an issue)
  • Solar System: 500w/40A with 500w DC to AC Inverter, + Emergency 100w Alternator (hand/wheel)
  • Battery: 50Ah (1x 150Ah is 2/3 weight of 3x 50AU, 30lbs vs 45lbs)
  • Lights, Heat, Internal Galley, Running Hot/Cold Water, Internal ShoweCassette Toilet, Fridge
  • 10.1" HDTV with speakers, AM/FM tuner, Mini-PC, 2x Smart Device Mount/2A USB Charge Ports, Shore PoweWater hookup, Solar & Shore Power outlets (internal & external closet locked)
//
//

Concept: The REALISTIC Bike Mini-RV / Camper.

Concept, Micro-Camper, Minus V-front doored front storage & "Fat 250lbs" bike wheels:
  • 15ft Canoe, 400w solar panel, Propane (Standard BBQ) Tank, Cassette Toilet & Toolbox show scale
  • Wheels would be "half cowled, all smooth", as described
  • converted to "all interior" features (no rear door or hatch galley)
  • Ideally just sitting height, on interior futon's height seat, plus folding chair on casters
Vetsport microcamper used as concept image, DIY modified as described
Layout: Concept Alpha, rough composite image, ideally just sitting height, door opposite traffic

Chassis/Trailer

Aluminum T-Channel Square Tube, Weighs: 52lbs / GVWR: 352lbs (up to 500lbs True)
96B Bike Trailer Source
$1300 to $1400? I thank them for their genius design, and customize it to my needs via a DIY build
  • Much cheaper, $250 in metal, DIY, but concept is awesome. Secure but adjustable wheels
  • if we replace the wheels, tires & innertubes with "fat bike" 250lbs each (the max I can locate), we will "get the most out of this wheel/axel style"
  • We can max out width, up to 5.5ft safely, with an internal "wheel well", and "stretch/over hang" the load to up to 12ft safely
Specs: 96B, 10x3ftft trailer total (8ft long cargo bed), GVWR 400lbs (under rated to 300 + 52 chassis)
  • 20" 175lbs each tires > Upgrade to Fat Bike Tire up to 250lbs each passible (500lbs "True")
  • On bike wheel axel universal hitch
  • 1 minute wheel adjust, balance ANY load
  • Fast release wheels with cargo loadable, person stand on supporting, fender
  • Stable for bed loads as long as 12' & as wide as 5'6", and 5'6" tall (12x5.5x5.5ft), from pictures, videos of it in use, & written reviews from owners of trailer (like a 5ft tall stack of 5x8 OBS)
Stock 96b specs

Body Profile: "The Simple, All Flat"

Archived Source
Profile: squared off, all \"flat panels\", 4x8 & 5x8 (tongue push to 9ft or even 10ft), 4ft tall

Similar design (by other reddit user, as example pics)

Here on reddit: HERE
  • great idea, I believe a few inches more per side with enclosed wheel well may improve usability
  • making frame DIY, and careful choice of materials/technique may improve design
  • If a "side doohatch" is chosen over the "rear door" mass and layout may be improved
  • Adding front "V-Wedge" (Equilateral force airbody) "storage area" (battery/etc) may improve design
  • Changing the wheel/tire/innertubes is a must to achieve best max load results (imho)
  • welding frame should improve strength and reduce "hardware" mass (1lbs?)
  • If using a interior Wheel wheel, removing fenders should save an estimated 2lbs to 4lbs
  • "Smooth Side" Half-Cowling of the wheels to the body should improve aerodynamics
These considerations may save a rough 12.5% to 25% mass (6.5lbs to 13lbs), maybe to 40lbs weight
Weighs about 90 pounds, a hexayurt inspired design, built from polyiso (with lexan windows and a plywood floor) atop a bikes at work 96AW trailer.

Framing/Insulating

In SIP 2x3 "light" Lumber or more Aluminum T-Channel Square Tubes
  • Which ever is lightesafer, I will test strength a few gauge thicknesses and hardwoods
  • On "Base"/bed in 6mm (1/5) marine OBS double face finish (1x or 19lbs)
  • inneouter skin in 5mm (3/16) single face finish, 14lbs (6x or 84lbs) (I MUST test for rigidity/flex), minus waste cuts
  • Insulated in 2x "single face foil backed", rigid R12.5 1.25 inch thick "foilboard", sandwiched/Glued together on non-foiled face, to make 2.5 inch thick R25 (R30 when skinned/sealed) walls
  • Various finishing for moisture sealing/proofing all joining's/exposed surfaces
  • "Poor-Mans" fiberglass look via fiberglass cloth, steamed, smoothed, sealed sanded & painted
  • Rigid foam is 0.01 at 2x8ft (we use 16 sheets, or 0.16lbs!), minus waste mass
  • 2x3x8ft lumber weighs, 8.5lbs (we use 14 boards of 2x3x8ft lumber, or 119lbs), minus waste mass
  • OBS needed has a mass of 103lbs (taking us to approx. 220lbs, minus waste cuts, or 5%/10lbs)
  • 220lbs, That is "shell" on frame mass, with door, no fixtures, & no trailer mass added, 10x5x5ft
With trailer, if 40lbs, that is 250lbs, minimally, with doohatch & port/skylight windows
Tongue Storage: 10.5sq ft (v-shaped enclosed, multi level, lockable, mini drop wheel/kick stand)
Exterior: 12x5.5x4.5ft, min clearance 10 inch (5.25ft tire bottom on road to roof top)
Interior: 11.5x5x4.25ft = 57.5sq ft
GVWR: 500lbs + 10% (550lbs)
Total: 68sq ft, 220lbs "rolling" ready (no interior fixtures past cupboards/shelving/blank worktop)
  • assuming all wood 2x3 picked as "lighter" & 2x2 tests "unsafe" or "too low R value"
Vetsport Extreme SIPS Microcamper, Link to 100% free plans (order is assembly is detailed)
Strong/Light SIP Framing, while using minimal non-rigid foam (wood/metal)

Liquids Note:

White/Grey/Black Water (minimal sizes, if used) - 8lbs per Gallon
  • White water tank: 1 Gallon per person
  • Grey Water tank volume must equal white tanks (obviously, to avoid overflow/floods)
  • Black water tank must equal 0.5 gallons (full blader emptied + daily constitutional)
  • Equals, per person, 2x 1.0 gallon tanks & 1x 0.5 gallon tank (20lbs per person)
  • Note: even a "cassette/composting black water tank" has mass if full
  • Safety: Liquids move, try to avoid traveling with anything but a full "white water" tank, if you can

Ok, Rolling unit concept, needs a floor plan/layout

So far:
Concept Alpha, rough composite image
  • Sliding door on bathroom would allow access, if 2 people inside, one sleeping (during night)
  • Galley & Wet room (bathroom) split across front end, as 2.5x2.5ft each (including wall framing)
  • this is "no axle adjustments" setup, ensure perfect initial balance, then that loads are balanced, may need to change floor plan to represent true location of wheel wells
  • I prefer single side door, on not traffic side, opening so it would close itself if it opened in transit
  • front/rear 1ftx1ft windows, 0.5x1ft side windows, main skylight, vent skylight bathroom & kitchen
  • A "mechanical closet" in V-front, vented, for batteries/propane. other unsafe, etc.
Concept Alpha, rough composite image, ideally just sitting height on futon
Small Wet Rooms?
  • Commercial unit: 29x30" RV Wrt Room Pic: manufacturer site: Forest River
29\"x30\" RV Wet Room, New Unit, Unboxing Before installation (overhead-ish view)
DIY "As Small As Possible" Wet Room, Smallest I've ever seen (20" x 24"?)
  • Cant pass this up, the space saved using a wet room this size is too good
  • Adding a tiny fold up, collapsing silicon "wash-sink" would complete it as a "3 Piece Wet Room"
DIY Wet Room, Smallest I've ever seen

Inside added weight:

  • 500w/40ASolar setup (15lbs), DC to AC Invertor (2lbs) & 50Ah Battery (15lbs)
  • A 4.5ft to 4.75ft wide futon + good mattresses weight (custom murphy futon/daybed, 15lbs??)
  • A 2x2x2ft Cassette Toilet & materials to water proof wet room so it doesn't leak to interior (5lbs)
  • I minimally equipped cooking work top's combined mass, likely a mini toaster over (100w to 550w = caution), collapsing 0.6L kettle (460w), hotplate (100w to 450w), small table fan (18w), 30lbs
  • A 8w on demand water pump (with filter), plus piping to a mini sink & 0.5GPM ULF showerhead
  • White, Grey & Black Water tanks for 2 people (5lbs + 40lbs when full), 2nd "grey/black" piping 8W on demand pump (filterless)
  • DIY 100w Peltier driven 0.5 gallon hot water tank (this 100w is not free, but "waste heat" is)
  • Note: Just too good to pass up, considering power needed to heat/cool watefood
  • Above pumping heat out of a 0.5cu ft mini fridge at 3C, for FREE (100w FREE), 0.5 gallon cold water tank below it (uninsulated barrier wall for passive cooling "cold water"), 10lbs (all water equip mass + DIY 0.5cu ft 3C Refrigerator)
  • LED 10.1 inch HDTV (18w) and "entertainment suite" (PC & AM/FM Radio, 18W) on ceiling fold down panel. 5lbs
  • 350w of heating needed (400w thermostatic panel, with thermostat, is smallest/lightest), 5lbs
  • LED lights: 2x 7 watt main area (+ 3w LED in 6w solar vent fan), 2x 11w readers, 9w kitchen (+ 3w LED in 6w solar vent fan), 9w bathroom light (+ 3w LED in 6w solar vent fan), 7w rear strobe, Cargo area bay 9w (+ 3w LED in 6w solar vent fan), exterior, 15lbs
  • Light weight shelving/cupboards/divider, suitable to loads 15lbs
Total Interior added weight: Approx. 170lbs + 220lbs = 390lbs (+/- 10% = 39lbs)
  • That is liquids "full", 350lbs "liquids empty"
  • Plus your, MINIMAL stuff, blankets & clothing (call it 20lbs more per person, equal to full liquids)

Fully Equipped Mass of: Wet 390lbs / Dry 350lbs (call it 400lbs)

  • GVWR is 500lbs by my math, as a "utility/cargo road trailer" (UK/CAN/AUS MoT, USA DoT is similar)
  • NOTE: Trailer has no VIN/ownership & can not be pulled by a motorcycle/catruck on roadways
  • BIKES/E-BIKES ONLY: Best you can do is 3 wheel Recumbent E-Bike in Canada/USA without being a licensed vehicle, 500w Can/750w USA per wheel but 1100w is possible (5000w + 3000w + 3000w)
  • Safe to carry 100lbs of additional cargo (on tongue or roof), LOAD BALANCED
  • Stationary, on quad kick stands, it should support 2 Adults sleeping/moving inside (+300lbs)
submitted by Aazardian to u/Aazardian [link] [comments]


2019.10.31 22:49 n0tqu1tesane Strength difference between steel square and aluminum round tubing

I have been considering for a while (and likely not for another year or more) building a cargo trike and possibly a recumbent tadpole. Few different choices, but linked current top two. Later boils down to buy & replace drivetrain, or build to suit from the ground up.
As best as I can tell without buying plans, it calls for 38mm or 40mm by 1.6mm square steel tube. Looks like 1.27lbs per linear foot (insert rant about WTF we can't go to metric in this country. it would be so much easier.)
From what I found online, converting to aluminum requires multiplying height and wall by 1.3. Closest contender from same supplier looks to be 1.03lbs per linear foot
About 700 grams lighter, but 4x the cost. I'm guessing going to round aluminum probably won't be that much different in either cost or weight, but is there a "rule of thumb" calculation to give me an approximate diameter and wall thickness between square and round (or, to rephrase, how much stronger is a circle than a square?)?
Also, can anyone recommend material of equivalent strength to 40mmx1.6mm steel square that would be 75% or less of weight at not more than 2x average cost?
TIA
submitted by n0tqu1tesane to AskEngineers [link] [comments]


http://swiebodzin.info