Sembot

This is my seed spreader robot PROJECT this is the first iteration and will receive updates but so far this is the v1 that is 350mm x 500mm for base housing not counting wheels assembly is quite a burden but is possible in about 1-2 hours follow instructions carefully.

PRINTABILITY:

⚠PLEASE DONT TRY TO PRINT WHOLE STEP FILES, USE 3MF ONLY⚠

i reccomend printing in petg or asa to achieve high regidity 

here are all parts that need to be printed.

HARDWARE REQUIRED:

you will need aluminum extrusions 2020profile 33cm long, many M6 screws, many m3 m4 m5 screws and 6x M8 screws

ASSEMBLY :

First heat weld all main parts together using heat welder and superglue using this map

Assembly is made of 4 main parts.

first the main box:

first take 8 of these parts

and your four sides and place on on every hole as shown below

Screw in an m6 screw 12mm long in each  20 screws needed , You should now have something that looks like this 

Next screw in the aluminum extrusions but before insert two m3 2020 fasteners in each as shown , the side with both extrusions is the side with the bottom floor screws are furthest away from edge. Secure them in place with M5 screws 30mm long.

Next parts : 

electronics:  you will need a 9g servo and the lift base and assemble them as shown and glue them together .

Then attach the cross servo arm onto the servo and attach to it the screw

as shown:

 then slide on the seed channel as shown, and glut it in:

Screw the bldc motor onto the motor mount as shown:

Next place the motor mount above the two 2020 fasteners center of the extrusion as shown, and screw it in place with two m3 screws.

Next attach to it the seed chute as shown , reinforce with glue and plastic welding

Next slide on the seed storage on opposite side of motor as shown.

Secure it in place with plastic welding.

Next connect the reservoir and channel with  a 10cmØ acrylic pipe.

Now onto step 3:

Screw on the roof as shown with m4 screws 

Next screw in the bottom extrusions with M8 screws as shown

Glide on a 2 m4 fasteners on each rail as shown

Then place on a wheel mount on every extrimity as shown screw each in place with m4 screws.

Final steps:

insert the bearing holder on the opposite side of seed storage as shown, repeat on opposite side.

Next press the bearing onto it as shown secure it in place with glue.

Next press the wheel onto the bearings as such

Finally insert the hubless motors on back side as shown.

So now voila you robot is assembled so expirement with different motor drivers and micro controllers make use also of the front and back holes meant for utrasound sensors. So you should have something like this ENJOY

The spin of bldc with seed chute will shoot seeds out with use of centrifugal forces