Linear Actuator

grabcad

Update 6/15/2108 added the 2020 version (endstop/non-endstop) fusion 360 files.Update 3/2/2018: LinearActuator v50 added screws and t-nuts to design redesigned the beltGrip and Linear Adapter for added strength and better fit Uploaded f3d, Iges, Step filesLinear actuator with belt running inside 2020 extrusionIdler adapter has tensioner spring built-inEnd stop built-inCurrent video shows Nema 17 0.4 which can run at 11000mm/min before skipping. More can be achieved with higher torque steppersparts used:8020 1003 series: http://amzn.to/2ByZ5inbelt tensioner spring: http://amzn.to/2BeLDDDendstop: http://amzn.to/2D4nJrtstepper nema 17 0.4A: http://amzn.to/2BcKMDcLinear Rail MGN12 250mm: http://amzn.to/2B2l5BrSquare nut: http://amzn.to/2BzGaE2hex socket screws M3: 25mm: http://amzn.to/2BflUuQ 20mm: http://amzn.to/2D44E8Z6mm: http://amzn.to/2B05XV910mm: http://amzn.to/2CU2zvc15mm: http://amzn.to/2D6SBb9M4 8mm: http://amzn.to/2CMkRyNIdler 3mm bore: http://amzn.to/2yXaXYP2020 t-nut M4: http://amzn.to/2GdZubWGT2 timing belt: http://amzn.to/2Byy2UkOther grabcad models used in design:Timing Pulley GT2 (20 teeth, 5mm bore)Endstop Microswitch 1A 125VAC Design By MakerbotMK8 extruder