Model Overview & Print Notes

Fully functional 5 DOF robotic arm You can build for less then 225€ what makes it absolutely cheapest robot in its class. --- Please notice that *prototype* means very early version of this project (beta), it can have some issues with stability or electronics and don't feature full support/functionality (listed in *future features*), that also means its really open for feedback or your upgrades/mods you can send here in comments section or on SpaceDragon [discord](https://discord.gg/pbjFXMpWYx) (for now also still in development but have place for it) --- [Full tutorial and more info] (https://youtu.be/tdBzNi5dVDo?si=HGKEK9t_9rYFFpjT) --- **gen1 mechanical preview** [creation dragon-arm-one-gen1-robotic-arm-mechanical-preview] *mechanical preview is a full 3d model of dragon-arm one gen1 frame final version version without additional support* --- **You can use it:** - to learn about robotics at home - to practice programming with real hardware effects - as base for your project - as part of your project - to join the project development by making your own upgrade **In prototype version it can:** - lift more then 0,3kg - reach 600mm - support AI based work algorithms - achieve decent precision - support any mods and changes thanks to very universal components - work constantly for hours without overheating or any other problems **Project future features as dragon-arm one gen1:** - dedicated application for easier coding and general use support - angle feedback from magnetic encoders - increased stability - increased precision/repeatability thanks to encoders (goal under 1mm error) - easier assembly - full documentation, instruction and bonus use support materials - more than 3 ready toolheads --- **All parts you need to make this robot:** - 3d filament >3kg (I recommend PETG/PCTG, nylon or higher engineering material also can be good to increase robot stability) 15*24*5 bearing x22 - arduino UNO (every uno fits, R4 is good but Q allows a lot more with its 2 cores like controlling robot with more complicated algorithms/AI) - DC power supply 12-36V (depends on your motors and drivers) >9A (place for power supply is 50x205x23mm good for cheap LED power supplies but if you have other type not fitting here there is no problem to use it as external and just put cables thru ventilation holes) - HTD 3M belts 4-10mm wide - 225mm long x7 - 348mm long x1 - GT2 belt 2-6mm wide 150mm long - TMC2208 or similar module x5 - nema 17 stepper motor - 38mm (42 Ncm +) x2 - 48mm (59 Ncm +) x3 - 26mm (14 Ncm +) x1 - 60x60x10mm fan - capacitor 50V 100uF x5 - cables - M3 inserts >100 - M3 8mm countersunk screws >100 - M12 screw with nut x2 - arduino screw shield (optional for better connection) - Power entry + power switch 12x19mm (optional) - MT6701 magnetic encoders x5 (optional can be added later) - cable sleeves (optional) --- **Files contain:** - all the robot parts in .step files sorted in folders by specific subassembly - simple assembly instruction - TMC mount board Gerber files - TMC mount KiCAD project --- You can find more information at [SpaceDragon.online](https://www.spacedragon.online/dragon-arm-one) Also visit [SpaceDragon YouTube](https://www.youtube.com/@SpaceDragon-robotics) --- ## 3D Printing Settings **general for most parts** - 0,2 mm layer - 2 walls - 15% infill - 3 top layers - 3 bottom layers - wall generator classic (arachne changes tolerances and parts may not fit together) **specific for selected parts** - 5 walls - >30% infill (gyroid) - 5 top layers - 5 bottom layers - PETG/PCTG or higher engineering material with better heat resistance is necessary here spatially for motor gears because nema schaft can get really hot and deform weaker materials