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how to make a cardboard frog robot
There are a lot of video guides on YouTube now showing how to make a model similar to the one I created here.
So this is my change on the frog. robot theme.
I hope this guide will provide anyone with the details they need to easily make one of them.
Before I get a robot that actually works, I made four of these robots, and this guide is a document of my working model.
This structure is mainly by task (
Measurement, cutting, painting, drilling, bonding, assembly, etc. )
, But feel free to jump and create parts in any order you want.
I also created a YouTube video guide for this project where I link to the various sections of the video guide.
I created a PDF version of this structure (download below)
I also provide SVG files (download below)
Quickly draw the template of the hole on the triangle.
About a year ago, after I did this robot, my now fourth grade friend Justin showed me how this frog robot works and moves faster, when placed on its head.
Now, I imagine a penguin model with its side and bottom painted black;
And a white cardboard pulley for your stomach.
I need to figure out the wings and mouth. (
Inspiration for another project! )Cardboard (
I used Elmer\'s three.
Measure the folding display board of 22 \"W x 14\" H)
Mini craft skewers or Staples (1/8” diameter)
Mini tape (
I used duck brand duck mini tape, pink)Masking tape (optional)
Electronic tape for Google Eyes (23mm)Pony beads (optional)Rubber bands (1. 75” or 1.
5 \"diameter w/7mm Motor pulley.
Rubber band with 16mm Motor pulley)Low-speed, high-
Torque DC motor I used the following motor in the household science tool: Motor pulley I used with 6-
Measuring 7mm outer diameter 16-from another motor pulley option-
Diameter 17 MM: I used the following C & K On-
Off switch: battery connector with lead I used Pangda type I long cable to connect hard Case Black Red 9 v battery clip connector 9 v battery acrylic paint (Green)
Small cup or bowl paint Super Glue stick for glue gun welding (optional).
Connect the wires with tape as an alternative. Rubber gloves (optional)(
If you stick your fingers together, use nail polish remover)Ruler (
CM and inches, clear plastic)PencilMarker (Optional)
CompassAmerican quarter (25¢ coin)
Glue gun drills with the following drill bit sizes: 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32 and. Gimlets (
3mm, 4mm and 5mm)(
I use Robert Larson Gimlets)Nail (
For initial holes in cardboard and glue-stick stoppers)
Rubber hammer or hammer (Optional)(
Used to create initial holes in gluestick stoppers)Block of Wood (Optional)(
I used a piece of waste wood of 10 \"L x 1. 75” H x 3. 5” D)
Soldering iron (optional).
Connect the wires with tape as an alternative.
Utility Scissors (
For cutting cardboard)
Box knife or tool knife (
Used for cutting or slicing cardboard)Handi-
Cutting tool cutter (Craftsman).
Any type of gardening/trimming cut works. Kobalt 8-
On-site maintenance pliers (optional)
Small lacquer brush tweezers (
If the rubber band is stuck on the cardboard pulley during disassembly/insertion, it helps to remove the rubber band)
Measure, draw, cut and paint.
Draw and cut out 4 triangles from cardboard 14 cm wide and 7 cm high. (Sides & Feet)
I cut out a triangle and use it as a template to track/draw 4 triangles that are large and have equal shapes.
In addition, Mark \"L\" of \"left\" on the back of the two triangles, and Mark \"R\" of \"right\" on the back of the other two triangles \".
This will help to keep objects aligned when holes are formed later.
Video Guide when drawing, cut out 1 rectangle from cardboard 14 cm long and 7 cm wide. (Base)c.
Using the compass, draw and cut out 2 circles from the cardboard with a diameter of 6 cm. (
Outside of the big pulley)
Using the video guide of the compass, draw and cut out 1 circle from the cardboard with a diameter of 5. 5 cm. (
Inside of big pulley)
* Cover the outer perimeter of this inner pulley with a mini tape.
See the video guide using the compass to draw and cut out 2 circles from cardboard with diameter 2. 5 cm each.
Or track 25 cents for American coins. (Eye supports)f. [Optional]
Draw and cut out 6 small circles from the cardboard with a diameter of 1. 5 cm. (
Washer/gasket inside and outside)
* Forming holes in circles before cutting 3 sticks * Video Guide (axles)
Measure 11 from 1/8 \"cooking skewers/sticks. 5 cm each.
Then, Draw 2 marks on each stick with a pencil.
1 cm from both ends.
These marks will serve as a guide to help keep objects aligned when assembling robots.
Video Guide for cutting 6 short sticks from 1/8 \"cooking skewers/pin sticks, measuring 2. 5 cm each. i.
Start at one end 2 cm and Mark 2 holes with pencil in the middle of 6 mini craft/popsicles.
Video Guide in j.
Draw any work where you want to see the color.
I drew the top of the base, the outside of each triangle, and the outside of the eye support.
Video Guide: The holes in the triangle, pulley and mini craft start by drawing the holes on a cardboard triangle.
Once the holes are marked and formed, the remaining three triangles are marked using a cardboard triangle as a template.
The quickest way to draw the initial three holes on a cardboard triangle is to print the provided SVG file containing the triangle with the marked hole.
Cut out the triangle from the printed SVG file as a template.
Once it is aligned at the top of the cardboard triangle, poke the initial hole with a nail through the three drawing points on the template.
See the video guide with the goal of making the size of each hole slightly larger than the diameter of the ske/dowel rod.
This makes the top
In the free rotation of the rod/shaft in the hole;
And allow two holes in the bottom of the foot-
The triangle rotates freely around the front and rear mini joints-axles.
I like to start from a young age, my size will get bigger when forming holes so I don\'t tear any cardboard.
I started with the DingTalk first, then the 3mm gimlet, and finally the 5mm gimlet.
The 5mm gimlet will provide the perfect size for each hole in the triangle.
To draw holes yourself without using SVG files, measure 2.
Level 1 cm from bottom
The left side of the triangle, then go 1.
Draw the first point vertically 2 cm.
Next, measure 2.
Level 1 cm from bottom
To the right of the triangle, then go 1.
Draw the second point vertically 2 cm.
Finally, measure 7 cm horizontally from the bottomleft or bottom-
Right side of the triangle (center)Then go to 5.
Vertical 25 cm from bottom
Draw the center of the third point.
See video guide that formed my hole on one of the triangles I first drew and marked as \"L\"
\"I use this triangle as a template for drawing holes on the other three triangles.
Both triangles marked with \"L\" are faces-
When I trace with the \"L\" template triangle.
Both triangles marked as \"R\" are faces-
When I track holes using the \"L\" template triangle face --up.
This helps to keep the holes tightly aligned on both sides so that the rods/shafts that pass through the holes are as straight as possible.
See the video guide for the initial hole in the HolesForm, with a small foot of 3mm and then a skewer or dowel stick to make your size bigger.
For more information, watch the video guide: hole the craft stick HolesStart with the smallest bit (1/16)
And work on bit size.
The goal is to get a hole of 5/32 bit size.
When drilling, place the stick on the top of the block.
Try sticking 3 sticks together with tape to drill holes.
If the stick is not separated, it is difficult to drill the hole to the required size.
I often drill to a drill bit size of 1/8 and then gently form a larger hole with a stand of 4mm;
Next is the prompt for 5mm gimlet.
Do not force the gimlet when it encounters resistance in the hole, otherwise the stick will crack.
Gently turn the gimlet back and forth and move left and right as if carefully gently lock and open the door.
Keep the clockwise movement sensitive to resistance, slightly away from the wood at a time.
The work of forming holes from both sides of the craft bar.
The drill bits for these craft rods are fragile, so there will definitely be something extra because some will break.
When glued together, see the video guide for aligning cardboard circles, place them on skewers/pins, but do not stick them to skewers/pins.
Starting from the pulley parts in the adhesive (5. 5cm)
To one of the outer parts (6cm).
When sticking the glue to the external part, I apply the glue to the internal pulley.
See the video guide when creating joints, we need to connect 2.
5 cm sticks with mini craft stick.
Using a glue gun, put a drop of glue water on the top of a hole in the craft bar.
Then insert 2.
5 cm stick through the bottom of the hole and drip glue.
Take the stick all the way through the hole and then screw it back into the hole with glue so that it is almost flush with the upper edge of the hole.
By placing on the edge and side of the block, try to keep the \"L\" shape of the two parts dry;
Or on the edge and side of the desktop.
Once the initial glue is dry, I would suggest gluing the stick to the other side of the hole to make the connection safer.
See the video guide to draw a mark at 8mm of the outer edge of each hole on the mini craft stick.
Then cut the craft bar at the 8mm mark and trim the corner to make it more rounded.
See the video guide at the end of each wire.
Positive Connection (+ red)
Wire for battery connector to \"O (off)
Positive Connection (red)
Wire from motor to \"I (on)
Side of rocker switch.
Finally, negative connection (-black)
Wire for battery connectors to negative poles (black)
The electrical wire of the motor to complete the circuit.
By welding with tape or fixing the connection with tape.
For more information, watch the video guide: glue gun, apply the glue to the bottom of a triangle and place it on the top of the base so that it fits flat to the edge of the base
When the glue dries, fix the triangle in place.
Next, apply another line of glue where the inside bottom of the triangle intersect the bottom.
Before positioning the motor, battery, and switch, see the video guide for the front and rear shafts.
Motor in front-
On the left is the switch on the back-left side.
Make sure the motor does not touch the front shaft before the glue is in place.
The battery will be located on the right side between the rear shaft and the motor pulley.
Add the healthy glue section where the motor will be placed.
Put the motor into the glue.
When the glue dries, apply pressure and keep it in place.
See Video Guide: battery in place and add another part of glue at the bottom
Right side of motor (
Motor side facing switch or back of robot).
Video Guide: glue on the left side of the switch.
Rear position switch-
The left side of the robot makes the switch flush with the angle.
Make sure the switch is placed high enough so it can stay away from the backleft washers.
When the glue dries, apply pressure and keep it in place.
Please see the video guide, ready to glue the cardboard pulley to the middle shaft and wrap the rubber band around the motor pulley and the cardboard pulley.
Position the cardboard pulley on the shaft to align directly with the motor pulley.
Ensure the marked guide rail on the shaft (Step 3, g. )
When the pulley is aligned, even on both sides of the robot.
After the pulley is aligned, draw two marks on the shaft to draw the width and position of the cardboard pulley.
See Video Guide: rubber bands and washers are attached to the shaft before gluing the cardboard pulley to the shaft.
I added three 1 \", five 1. 5”, and five 1.
75 \"rubber band.
Looks a lot;
The rubber bands, however, stretch and eventually break.
Tip: remove the rubber band from the pulley when the robot is not in use.
This helps to extend the life of the rubber band.
There are two washers on each axle: one on the outside of the robot and one on the inside of the robot.
This helps to keep all three axles aligned.
There are washers on the left side of the middle and rear axes.
Front axle right have washer.
Place the two washers on the shaft so that they both touch the outside and inside of the triangle slightly.
They should be able to rotate without rubbing too much against the sides of the triangle.
Before gluing, make sure the axle is even on either side of the robot.
Only glue the sides of the washing machine facing the triangle.
Even if the shaft is on either side of the robot, start by gluing the gasket to the middle shaft on the left side of the robot.
Before gluing the cardboard pulley to the middle shaft, carefully check the alignment of the pulley.
Adjust the position if needed.
Stick the cardboard pulley to both sides of the axle and the shaft.
Glue washers on the front and rear shafts.
View a video guide perpendicular to the robot\'s joints to the robot\'s axis; and mini-
The joint shaft located below the robot shaft;
Face away from robots.
Leave a little space from the edge of the axle to apply a drop of glue.
Once the glue is applied to the shaft, rotate the joint;
Move to the edge of the axle.
Even the edge of the robot axle should sit the joint down.
Be sure to let the glue dry with the joints in the original position perpendicular to the robot.
Once the initial glue is dry, glue the shaft to the other side of the joint where the hole meets to make the connection stronger.
Use a small piece of wood or a small box as a lift so that the joints do not reach the surface when bonding.
Hanging the joint on the edge of the table can also work.
Just make sure to glue all joints in the same position on both sides of the robot.
See Video Guide 3-
Drop 5 drops of super glue at the bottom of goodly eye.
Place Google eyes in the center of eye support with glue.
Keep and apply pressure when drying.
Next, apply glue to the robot.
Apply super glue on the bottom of the eye bracket, a little off-
Center and place in front of the triangle edge.
Keep the glue in place when it dries.
Watch the video guide on a glue stick about 1/2 wide or cut 12 pieces off the glue stick.
Start a hole by forcing the nail through the center of the slice.
Reverse the nails with an up point and push the glue
Attach the slice to the nail and the thumb to the outer edge of the slice.
Next, slice a wooden ske or stick through the stick several times.
Then rotate or twist the slice and pass through the stick to remove the glue from the center.
View video guide on glue
Glue the gasket to each small shaft on the joint.
Then connect the triangle foot and pass the small joint shaft through each hole in the triangle.
Add a second glue-
Stick the gasket to each small shaft outside the triangle to hold the foot until the position.
Leave a little space between the triangle and the gasket.
See the video guide on the beads, which is an alternative to making washers with glue sticks.
Some of the pony beads are perfect for the 1/8 stake and some are too loose.
I highly recommend using pony beads as an alternative if they are very comfortable.
Connect the rubber band to two pulleys, flip the switch and watch the robot do its own thing!