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Ideas and build log for my CNC Shed

travis_farmer

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Aug 12, 2021
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I have a large shelter/tent, that i will be using for the base frame. the end walls will be stud-walls, rather than tent-walls. the front wall will have a double door. one that will usually be kept closed, and one for entering and exiting. both doors can be opened to get the CNC inside.
the roof/side-walls will be the tarp-like tent material, with a layer of greenhouse plastic over it, that will be inflated for insulation.
i will be installing my alarm system into the shed, for a little security, though i am unsure of how to detect if somebody simply cut through the plastic walls. not sure if a motion detector would be best, or if just a surveillance camera would be best. as i will be having a network connection out there anyway, i would think a camera would work best. maybe even two... with one facing the back, and another facing the front.
the CNC will be at the back wall, and spaced forward enough to get behind it for maintenance. the computer station for the CNC will have to be close to the machine.
i hope to be getting a mobile home oil furnace for the shed. this will go on the front wall, and exhaust through the wall.
the electrical entrance panel will also be located on the front wall, closest to the garage side, as i will be pulling power from the garage. i hope to have enough wire for the 6 or 8AWG wire i already have, but if it is too short, i will have to either buy more, or use a smaller gauge wire.
 

travis_farmer

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i think, rather than the greenhouse method, i may just install some 2X4 boards at 4' intervals, horizontally. then i will install 1" or 2" high-density foam panels, and 1/2" plywood over that. i may need to also have strapping 2' on center, vertically , just to support the plywood better.
the plywood is so i can mount stuff anywhere. i may use plastic under the tent material, as added protection from leaks, simply to channel water down and out, rather than inside where it will cause damage.

i will want to install the LED recessed lights i have, in the ceiling. so i will have to accommodate wiring somehow. but to keep it away from rodents, that i hope won't get in, i will mount channels to mount the lights in, and route wiring. all wiring will be surface mount. outlets will be at counter height, in case i install work benches, and will be mounted in surface-mount boxes.

if i can get 6AWG wire from the garage to the shed panel, i will be better off, but i may have to settle for 30A 240V service over 10/3 w/ground. i shouldn't need more than 40A service, but having it available for more, will make it more future-proof.
for loads, i will have the CNC machine, the laptop that controls it, the spindle/VFD (240V), lighting, various outlets, and the furnace i haven't got yet (not holding my breath at this point). oh... and the dust collection vacuum. all total, it is likely less than 30A with everything running, but the startup current of the various motors will be higher.

if by some miracle, i do get the furnace, i will have to have an oil tank. i don't know how much fuel it will use, but to start, i will use a 10 gallon tank, as i already have one, though it is a gasoline fuel-cell, so i will have to remove the foam from inside. but a 10 gallon tank, i can fill with just hand carry cans, and use off-road diesel, as it is cheaper currently than kerosene.
 

travis_farmer

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Aug 12, 2021
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the tent is a 13' X 20', the platform will be KD lumber, with a vapor-barrier spread on the ground underneath. the end walls will be either 2x4, or 2x6, with diagonal bracing, and clamps to the metal frame.

power will come in via a buried conduit to the garage. maybe 2", or so, to make sure of enough room.
network will be via the wireless bridge i already have. and in addition to the WiFi router, i will have a PoE switch before the WiFi router WAN input, so i can connect a VoIP phone, and some security cameras. i will also be installing my Alarm System in the shed.
 

travis_farmer

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Aug 12, 2021
Messages
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with the super greedy prices on material, i am trying to cut some costs, and still get this done. i would like to use 3/4" foil-faced foam on the walls and ceiling. also perhaps something for insulation in the two end walls. this is because if the summer heat, or winter cold is too much to work in, then i will need to be able to heat and cool the shed. i will install a single window for a window A/C, and i am not sure yet what i will do for heat. i doubt the line i had to get a trailer furnace is still open...

there are still some things i need to do before the shed is started. my fathers old van needs to move (or be gone), and i would prefer if the cherry tree was gone, but it may not be in the budget.

and to make matters worse, i may be out of work for an undetermined amount of time...

first, i will need to get the platform built. then i can move the tent frame onto it, some how. then i can get the CNC machine moved in and tarped for protection, and get the end walls built.
 
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