Hedgehog Pencil Holder

Summary: Me and my partners (linked below) created a set of 3D printed animals that are also able to be used as office supplies.The Hedgehog that we made had the purpose of holding pencils in holes in its body and the pencils acting as the spikes on a hedgehog's back.
 

Lesson Plan Goal: We were tasked with creating a set of 4 3D printed office supplies of one similar theme. We decided that we wanted to create a set of animals that would serve as a phone holder, pencil holder, tape dispenser and paper clip holder. When making the hedgehog we wanted it to be able to hold pencils but still look similar to a hedgehog and the other animals in the set.

Assembly: The hedgehog is one part so the only thing you need in order to use it is put pencils inside of it and enjoy!

Design Choices: When we started we wanted to make a design that would be able to stand on all fours to fit the theme of the other animals in the set so the first thing that we did was build three ellipse on 3 different planes and connected them together using the loft tool to create the body.  

The next step was to create the feet of the hedgehog. We made 4 circles evenly spaced out on the bottom of the body. We made sure that they would be able to support the body so we made them 1 cm each. Once we made the circles we then extruded blind each of them down 1.25cm. 

We then created a new plane in the front of the body using reference geometry. We made a circle with a 1.5cm diameter 1.5cm left of the origin of the plane. We then used the revolve tool to make the circle come out of the face and look like an eye. And finally we used the mirror tool to mirror the revolve feature across the plane and make the second eye.

Next we made the mouth of the hedgehog. To do so we started by using reference geometry again to create a new plane for the mouth to go on. Then we made a circle centered on the origin with a 1cm diameter and extruded it 3cm out. Next we used the filet feature .5 cm to connect the nose to the body and make it look more fluid and better. Finally we used the dome feature and made a .5cm dome of the nose.

The last step was to create the holes for the pencils to go in. We made sure to measure the diameter of a pencil and make sure that the holes we cut into the body would be slightly bigger to hold the pencils. We decided that .78 cm in diameter would be a good measurement so that it would be able to securely hold pencils and still look good. We then blind cut out circle centered on the side of the hedgehog 10cm. We then used the linear pattern tool to pattern the cut 4 times 1.5cm apart in the direction of the axis towards the “front” and 3 times 1.5 cm apart in the direction of the axis towards the “back”. Then we used the circular pattern tool to create holes all around the hedge hog for a total of 40 pencil holes.  

After that we made sure that all the measurements were correct and then printed out the design. 

Issues: Overall we stuck mostly to our plan but after we finished the design we realized that we needed to make the pencil holes a bit larger to account for printer error and to ensure that the hedgehog would be viable even if there was a slight misprint.

Partners Pages:@IsaacSokolic_1310011 @KarinMason