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final slide


olive shaker/harvester slide.

Assembly and final result on video



Project developpement

my Final project olive harvester/shaker tool, here are composants and my work progress.

Structure

Stick composites

stick composites made with cotton fiber and epoxy resin. designed on fusion360 please see the process in composites project

wood piece.

this wood pieces are designed on Inskape as a base to the fork, they are not used later because the first fork had many upgrading versions.
wood_piece wood_piece1

second handle

this is a second handle designed in Inskape to carry the tool and its secondary battery, this prototype has no secondary battery but for the production model I should develop a power circuit.
second_hand second_hand4 second_hand5

first hand.

designed on fusion 360, in 4 parts handle, hander_upper, handle lower, hanle cover, to help fix it with the composite stick. it is to carry the tool and put electronics circuit inside. parts are 3D printed in zotrax with ZULTRA material. I prepare the zcode for the files using same configuration for the parts low fill, layer thickness 0.29 for the handle the larger part I mixed a bit of acitone and ABS material spread on the surface so that the model dont come off the plateform in the beginning of printing processs. shrinkage is 0.3 and clearance 0.5 in the design for 3D print. please find the pictures below.
handle handle first_handle handle_lower acetone mixture plateform handle_printing first_hand1 handle_lower handle_lower first_hand1 handle_upper handle_upper handle_upper upper_printing first_hand1 handle_cover handle_cover first_hand1

buttons

here I desined and 3D print buttons for the potentiometer and toggle switch, configuration 0.19 material thinkness, print in red ABS find the pictures below
button1 button1 button1 button1 button2 button2 button1 buttons

fork casting

fork casting model is designed on fusion 360 made with epoxy resin please see the fork process on casting project.

enclosure box for elcetronics

I designed a box 120X55X35 for electronics circuit laser cut on acrylic, the material thikness is 0.3mm I cut a box of 50X50mm and test to calculate the kerf which is 0.1 then design the enclosure box for electronics accordingnly I made two designs of 0.05 and 0.1. for cutting I set the speed: 12mm/s Min Power: 80 Max Power: 80, for engraving I set the speed to 100mm/s and Max power: 30 Min power: 30 see please the pictures of the process below.
test_laser test_laser test_laser test_laser enclosure_laser enclosure_laser enclosure_laser enclosure_laser enclosure_laser enclosure_laser

Electronics.

first design was according to the block diagram below. one design. also I started by this card. I tried programming with FabISP and arduino uno ISP here some photo.
olive block diagram olive harvester_tool_sch olive harvester tool electronic board card2 card3 card4 card5
programming this board with fabISP and arduino uno as ISP did not work, after many tries Enrico and me decided to make a sashakit board and bridge board to be able to debug each board apart. please check the details of the second electronics version in output device project here I add a a toggle switch to turn on and off the tool.
olive harvester tool circuit
the fabisp I made previousely is not showing in my computer on hardware devices, I tried to reinstall the usbtiny driver, change the mini usb cable, try on other machines with diffrent OS, and reprogram the board, the board is repreogrammed each time but not showing on the hardware devices. I program my boards on arduino as ISP.

testing.

testing input threshold value to noise motor elimination and motor speed, testing toggle switch on/off button.


Assembly and final result on video.



cost of the product


parts cost
these prices are approximate and some may not be conform.

Design and packaging improvement.

improvements to do in the design are as follow.
first handle could be made with natural fiber composites same material and process as the stick in two parts one is cylindrical shape (same as 3D printed first handle part) and an upper part considering the buttons.
enclosure box for elctronic can be either with laser cut different design or casted
second handle move to the middle of the stick to carry the tool
3D colored parts for button cover in ABS for potentiometer and switch

Acknowledgements.

Special thanks to :
Enrico Basssi.
Tiziano Berti.
Nicola Buccioli.
Ernesto Voltaggio.
Matteo Devecchi.
Opendot fablab.

Project files.

to download design files on fusion 360.
here is the design file on step format
here is the design file on f3d format
here is the design file on f3d format
here is the design file on step format

to download desgin files of 3D print and plywood handles buttons and wood piece on fusion 360 and dxf.
here is the handle core in f3d format.
here is the handle in stl format.
here is the handle in zcode format.
here is the handle bottom in stl format.
here is the handle bottom in zcode format.
here is the handle top in stl format.
here is the handle in zcode format.
here is the handle cover in stl format.
here is the handle cover in zcode format.
here is button1 in stl format.
here is button1 in zode format.
here is button2 in stl format.
here is button2 in zode format.
here is buttons in f3d format.
here is the wood piece file on dxf format.
here is the wood piece file on dxf format.

To download laser cutter files.
here is the enclosure box for electronics file on dxf format.
here is the enclosure box for electronics file on svg format.
here is the enclosure box for electronics file on rd format.

To download shopbot files.
here is the shopbot file of negative mold
here is the shopbot file of positive mold
here is the shopbot file of the stick
here is the shopbot file of the stick

To download circuit design files on eagles and png.
here is the design board on eagle
here is the shematic board on eagle
here is input device board traces
here is the design H-bridge board on eagle
here is the shematic H-bridge board on eagle
here is H-bridge board traces and outline.

To download programming file on arduino.
here H-bridge driving Dc motor program in arduino IDE