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01-20-2020, 08:46 AM #2
Hmm, a 4 foot long belt is going to struggle.
Makes a lot more sense to have a motor each end with much shorter belts.
You're going to need big arse motors anyway.
20watt 12v psu ? Not a chance in hell !
think more along the lines oof 3-500 watt and 24 v.
https://www.amazon.com/LETOUR-96V-24...532295&sr=8-48
Your heated bed - assuming it's heated - will need a mosfet and be directly maind powered anyway. So the psu is just for the motors and electronics.
no matter what you use for a bed, that thing will weight a LOT - it's going to take some really beefed up motors. at least one of these at each side of all your axis would be my minimal starting point: https://www.amazon.com/STEPPERONLINE...9531751&sr=8-6
Assuming the bed moves, from the sketches all I can think is you are building an i3 design with moving bed.
Not how I would go for that size - I'd either make a delta or a fixed bed cube with three axis extruder movement.
The big issue is going to be momentum. The motor not only needs to move the weight of the gantry and printbed - but it has to be able to stop it instantly as well.
board wise think more along the lines of s duet wifi 1.4 clone (or actual duet if you can afford it)
You need something easy to upgrade and add bits to.
The machine is makeable - but you need to drastically uprate your specifications :-)Last edited by curious aardvark; 01-20-2020 at 09:02 AM.
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05-20-2024, 12:56 AM in Tips, Tricks and Tech Help