Evil Mad Scientist Ostrich Eggbot 2.0 Assembly Manual Download Page 45 | Manualshive

Page: 45 / 45

background image

Tailstock

Headstock

Egg motor

aka Motor 2

Pen motor

aka Motor 1

“EBB” USB interface/

motor driver board.

EiBotBoard v 2.0,

(

aka EggBotBoard)

Pen lift motor

(servo motor)

Flexure hinge

Scales

Egg couplers

Spring

Thrust

washer

Nylon

Bushings (2)

Tension indicating

O-ring, around

plunger shaft

Thumbscrews (12)

Angle

brackets (12)

Chassis side

walls

Pen Arm

Pen Arm (distal)

Pen

Arm (pr

oximal)

Pen motor position

slots & screws (4)

Pen Arm

Backer

Pen holder

thumbscrew

Pen arm height

adjustment thumbscrew

Flexure hinge washer

Pen arm

hinge clamp

Appendix A: EggBot Anatomy

Plunger

Assembly

Servo
extension cable

Servo mount

«
...
43
44
45

Summary of Contents for Ostrich Eggbot 2.0

Page 1: ...ratories in cooperation with Bruce Shapiro Ben Trombley and Brian Schmalz This kit is designed to allow you to draw on spherical egg shaped objects from about 4 25 6 25 6 16 cm in diameter Internet access simple tools and a recent generation computer Mac Win Linux with a USB port are required This assembly guide covers the procedures for putting together Ostrich EggBot Kit v2 0 Typical assembly ti...

Page 2: ...5 8 lbs inch 1 12 Nylon washer Thrust bearing 1 15 Tailstock Draw Knob 1 13 Nylon Spacer 1 4 ID 5 16 Length 2 14 O ring to retain 1 4 shaft 2 16 EiBotBoard v 2 0 by Schmalzhaus com 1 17 4 40 x 1 2 philips screw for EBB 4 18 4 nylon washer for EBB 4 19 plastic spacer for EBB 5 20 Stepper Motor 2 21 Spiral wrap 2 22 Screw M3x10 BSCS black for motors 8 23 Nylon washer 6 16 24 Brass thumbscrew 6 32 x ...

Page 3: ...e to trim strip and tin the wires you re certainly welcome to do so The EggBot kit comes with a regulated universal input power supply that accepts worldwide voltages and puts out 9V DC at up to at least 1 A International users may need to supply a plug adapter to fit the prongs into local outlets If you re using your own external power make sure that it provides 9 to 18 V DC has a center positive...

Page 4: ...e additional tools are included in the EggBot kit A 5 64 ball end hex driver a 5 64 hex L wrench and a 3 32 hex wrench The chassis is made of CNC cut MDF with laser engraved white melamine surfaces This is the EggBot chassis 1 on your BOM It consists of five separate pieces Ostrich EggBot Kit Assembly Guide 3 5 64 hex L wrench ...

Page 5: ...ides of the two chassis tailstock pieces Orient the two pieces as shown paying attention to both the outline shape and the engraved markings TO BE CONTINUED This piece is the inner tailstock This piece is called the tailstock back Ostrich EggBot Kit Assembly Guide Nylon flanged bushings part 5 ...

Page 6: ...TEP 5 Split bushings part II Press the two bushings into their holes To install one press it into the hole until the flange is flush against the surface without any gap Ostrich EggBot Kit Assembly Guide ...

Page 7: ... step you ll need the five 7 8 long threaded aluminum standoffs part 6 You ll also need 10 pieces of part 7 the 3 8 length stainless steel button socket cap screws There are a total of 29 of these in the kit Ostrich EggBot Kit Assembly Guide ...

Page 8: ...e side that where the holes are marked with solid circles Note that the circles are not always well centered around the holes Do not tighten the screws yet Thread a standoff onto each screw from the opposite side Use your finger to hold the screw head in place while you thread it on Ostrich EggBot Kit Assembly Guide ...

Page 9: ... tailstock pieces together The standoffs go against the unmarked holes on the other piece The other five screws go into the standoffs from the other side again through the holes with solid outlines And tighten the screws on both sides When you re done the tailstock should look like this You should have a clear view through both nylon bushings Ostrich EggBot Kit Assembly Guide ...

Page 10: ...d one of the steel screws into each side of each angle bracket using the hex wrench The threads in their holes may be rough and this process can help to break them in STEP 9 Angle brackets You ll also need 6 more pieces of part 7 the 3 8 length button socket cap screws Ostrich EggBot Kit Assembly Guide ...

Page 11: ...y a screw from the other side Tighten the screws only just enough to hold them in place Once the brackets are all in place stand the assembly up on end Hold the angled side of each bracket down flat against a hard surface Then tighten that bracket s screw well to hold it in place And here s how it should look when you re done Ostrich EggBot Kit Assembly Guide ...

Page 12: ...ined locations Again put the angle brackets in loosely at first and only tighten them once they re held flat This chassis piece is the headstock It s a good idea to check that the angle brackets on both the headstock and tailstock appear to be square to the outlined locations If they are askew you ll find it harder to adjust the thumbscrews in upcoming steps Ostrich EggBot Kit Assembly Guide ...

Page 13: ... 1 4 shaft 13 the two 5 16 long nylon plastic spacers 4 the 3 32 hex wrench which fits the little screw in the 1 4 shaft collar 14 the tiny O ring 12 the even tinier nylon washer 11 the steel spring There is another stronger spring for optional use as well Use the regular one for now Ostrich EggBot Kit Assembly Guide 15 tailstock draw knob for 1 4 shaft ...

Page 14: ...o loosen the screw for the shaft collar inside but it should fit easily and sit flush against the wooden back of the coupler Once the dowel pin is in place tighten the screw well to keep it there Slide the spring onto the shaft of the dowel pin and then slide the thin nylon washer into place Ostrich EggBot Kit Assembly Guide ...

Page 15: ... o ring on The O ring captures this plunger and prevents it from falling out accidentally Ostrich EggBot Kit Assembly Guide Push the dowel pin through the bushing in the inner tailstock so that a little bit sticks through to the middle You should have just enough room to slide in the other 5 16 spacer The plunger is now in place just one thing left ...

Page 16: ...t the spring to fully engage the plunger Gently release it and the o ring will keep it from coming out The tailstock assembly is now complete Ostrich EggBot Kit Assembly Guide Install the tailstock drawknob on the other end of the dowel pin using the 3 32 hex wrench ...

Page 17: ...ver and Next we re going to mount the EggBot control circuit board This is the EiBotBoard aka EggBotBoard aka EBB and 16 on your BOM This circuit board may be either red or white Four phillips head screws 17 Four nylon washers 18 Four nylon spacers 19 Ostrich EggBot Kit Assembly Guide ...

Page 18: ... will be mounted in this location oriented as it s shown below The EBB has mounting holes on its four corners To mount it we re going to put those four long phillips head screws in the locations shown below Ostrich EggBot Kit Assembly Guide ...

Page 19: ... holes in the corners of the EBB Put the spacers on the screws below the EBB Align the EBB on the headstock and position the screw tips so that they re resting in the pilot holes Now screw the screws into the headstock using a phillips head screwdriver until just tight Do not overtighten Ostrich EggBot Kit Assembly Guide ...

Page 20: ...EBB installation complete STEP 19 Adding the EBB part II Ostrich EggBot Kit Assembly Guide ...

Page 21: ...STEP 20 Stepper motors Ostrich EggBot Kit Assembly Guide It s a bipolar stepper motor Part 20 on the BOM Spiral wrap tubing for keeping your wires neat and tidy Part 21 on the BOM ...

Page 22: ... that opening and wrap it around the wires from the motor Continue wrapping the spiral upwards making a neat wire bundle Repeat for the other motor Continue wrapping the spiral down and try to position one end of the spiral wrap tubing close to the body of the motor You may need to slide the whole spiral wrap up or down a bit ...

Page 23: ... over the EBB The motor is held in by four M3 metric screws part 22 the black metal screws in the kit Put in all four screws and tighten them well with the 5 64 hex wrench STEP 22 Installing Motor 2 the Egg Motor Purists Unorthodox maybe but totally legit 5 64 2 mm to within 0 001 But you knew that right Ostrich EggBot Kit Assembly Guide ...

Page 24: ...hes to the chassis side wall As before test fit the motor in place This time you ll also use part 23 nylon washers to make motor height adjustment easier Place the washers on the black M3 screws before installing them to fix it in place Ostrich EggBot Kit Assembly Guide ...

Page 25: ...hassis side walls and thread into the angle brackets on the headstock Use six screw and washer pairs to attach the headstock to the side walls The washers will help them slide over the chassis surface during adjustments X3 Use the markings on the sidewalls to orient the pieces as shown Part 23 and 24 6 32 x 1 2 brass thumbscrews and nylon washers Ostrich EggBot Kit Assembly Guide ...

Page 26: ...STEP 25 Attach the Tailstock to the Chassis Use six more of the thumbscrew and washer pairs to attach the tailstock as shown Ostrich EggBot Kit Assembly Guide X3 ...

Page 27: ...d of the motor shaft just touches the back of the abrasive pad Orient the screw so that it will tighten down onto the flat face of the motor shaft STEP 26 The other Egg Coupler Ostrich EggBot Kit Assembly Guide Once the coupler is in the right place tighten it well But do not use excessive force that might damage the motor ...

Page 28: ...rm Gather them up and let s get going 7 3 8 stainless button socket cap screw 1 8 Angle bracket 1 26 the distal pen arm 1 27 the pen arm hinge clamp 1 28 the flexure hinge 1 29 the flexure hinge washer 1 30 Small Phillips head wood screws 2 31 1 2 nylon thumbscrew 1 8 7 26 28 30 29 27 31 Ostrich EggBot Kit Assembly Guide ...

Page 29: ...ride Orient the distal pen arm and clamp as shown Place the flexure hinge as shown with the holes lined up to those on the distal pen arm Place the flexure hinge washer on top of the hinge as shown with the holes lined up to those on the distal pen arm and the hinge Put the two small Phillips head wood screws through the holes in the washer and tighten them in place Ostrich EggBot Kit Assembly Gui...

Page 30: ...n place the free end of the flexure hinge over that screw end as shown Add the angle bracket on top of the hinge and screw it tightly into place with the 5 64 hex wrench Finally loosely thread the nylon thumbscrew 31 to the end of the pen arm You can use the extra brass thumbscrew in place of the nylon one for a snazzier look ...

Page 31: ...hat the pen arm will look like after a few more steps The upper part with the hinge is already done In the next couple of steps we ll prep the servo motor part 32 so that we can add it and finish this assembly Ostrich EggBot Kit Assembly Guide ...

Page 32: ... STEP 31 The servo motor initial setup The servo motor comes in a small bag of accessories Ostrich EggBot Kit Assembly Guide Take this piece the servo horn and push it onto the servo motor shaft Do not screw it in place its position is not final yet ...

Page 33: ...n Center Once you know where center is point the servo horn in that direction This orients the output shaft in the correct direction Then remove the servo horn taking care to move the motor shaft as little as possible in the process Locate the center position for your particular servo which will be halfway between its two ends of travel Ostrich EggBot Kit Assembly Guide ...

Page 34: ...is centered we need to place the servo horn at the correct angle Orient the servo horn as shown the horn points in the same direction as the cable Use the small screw from the servo bag to fix the servo horn in place Tighten it well Now that the servo is prepped we can install it on the pen arm Like so ...

Page 35: ...larger size screws and use it to screw the servo motor down into the wood of the proximal pen arm Hold the servo motor down and flush against the side against the servo mount part 33 as shown here such that there is no gap between them Here s how it looks attached Ostrich EggBot Kit Assembly Guide ...

Page 36: ...andoffs 34 to the two bottom holes in the servo mount Then attach the proximal pen arm part 35 to the standoffs with two more 3 8 screws Orient the ridge on the proximal pen arm away from the servo and servo mount Tighten all four screws with the 5 64 hex wrench Pro tip When you re plotting on smaller objects you may want to move the servo mount to the lower set of holes in the proximal pen arm Os...

Page 37: ... 36 Adding the Distal pen arm Use another 3 8 stainless screw 7 to attach the pen arm assembly with the hinge to the proximal pen arm Tighten it in place with the 5 64 hex wrench Hold it by the clamp piece ...

Page 38: ...crew and 37 is the 10 nylon washer Using the large brass thumbscrew with its larger washer attach the pen arm backer part 38 to the proximal pen arm Make sure that it s lined up so that you can see clear through the shaft mounting hole Ostrich EggBot Kit Assembly Guide ...

Page 39: ...haft is flatted to accept screws from a shaft collar Test fit the pen arm in place over the shaft The depth on the shaft is adjustable so that you can line up the pen holder with the egg axis Tighten the set screw inside the pen arm backer to lock the pen arm in place Next up Wiring Ostrich EggBot Kit Assembly Guide ...

Page 40: ...lock and screw them down The wire order is grey or brown green yellow pink bottom to top Check that each wire in the terminal is secure by tugging on it gently you don t want them coming out unexpectedly Wire up Motor 2 next Its four wires go to the Motor 2 area of the EBB Wire order is again grey or brown green yellow pink bottom to top Ostrich EggBot Kit Assembly Guide ...

Page 41: ...te it around the standoffs on the pen arm STEP 40 Servo Motor Wiring Connect the cables together firmly You can route the unconnected end of the extension cable through the slot on the headstock The servo cable connects to location B1 the bottom set of three pins on the EBB The cable orientation is important The black wire is the one closer to the outside the left side of the EBB Ostrich EggBot Ki...

Page 42: ...plug in power supply 41 the USB cable A hint to avoid future frustration The EBB will power on and respond to computer commands while only the USB cable is plugged in but the motors will not move unless the 9V supply is plugged in as well Ostrich EggBot Kit Assembly Guide ...

Page 43: ...ny others For more pen suggestions and information see 40 the pen Use either the nylon or brass thumbscrew in the distal pen arm to mount a pen in the EggBot Ostrich EggBot Kit Assembly Guide A black pen is included with your kit Additional colors are available at office supply and art stores http wiki evilmadscientist com Pen_choices ...

Page 44: ...documentation and much more is hosted at http wiki evilmadscientist com EggBot You can also get there from the Support tab at http www egg bot com Appendices follow You should have a few pieces left over including A large rubber washer which can be used with the egg couplers to hold smooth objects in place An exceptionally strong spring which can be used when more force is required to hold the obj...

Page 45: ...pring Thrust washer Nylon Bushings 2 Tension indicating O ring around plunger shaft Thumbscrews 12 Angle brackets 12 Chassis side walls Pen Arm Pen Arm distal Pe n Ar m p ro xim al Pen motor position slots screws 4 Pen Arm Backer Pen holder thumbscrew Pen arm height adjustment thumbscrew Flexure hinge washer Pen arm hinge clamp Appendix A EggBot Anatomy Plunger Assembly Servo extension cable Servo...

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