Monday, September 18, 2023

Ghosts That Rotate Around a Haunted House With a Gear

 

Two group of ghosts are holding a "Boo" sign which rotate around the haunted house.

Side view

Video of the Gear in action.

Halloween is coming and I wanted to add to my display of Halloween decorations.  The haunted house remains stationary while two groups of ghosts holding a "Boo" sign rotate around the haunted house when the gear is rotated. The haunted house is attached to an octagonal box.   The box can be filled with Halloween candy for gift giving.

Here is the PDF.  I used 65 lb. black and white cardstock, black and white glitter cardstock and orange shimmer paper.

Here is the .Studio file.

Here is the SVG.  The file extends beyond the scope of the viewing field.  Zoom out to see the entire file.

Make the Haunted House Assembly

Glue on the embellishments to the haunted house.

Glue on the orange luster paper to the back of the windows.

Glue on the four black glitter pieces to the roof of the main turret.

Adhere the three turrets into a square by applying glue on the tabs.

Apply glue to the main turret's side tabs and adhere.

Fold all of the tabs as shown above.

Slide the main turret's tabs into the slots on the house piece. Glue and adhere into place.

Apply glue to the six tabs shown (not the bottom tabs). Adhere into a house.

Slide the two side turrets into place on the black glitter roof.  Apply glue to the tabs and adhere.

Apply glue to the inside of the black glitter roof.  Slide the roof onto the house and adhere.

Fold the tabs of the top of the turret and glue the square into place on the top of the turret. Make sure that the fencing is aligned.  I used a needle to move the square accurately into place.

Cut a 5 inch piece of 20 gauge wire.  Glue the white glitter moon shape onto one side of the witch moon piece.

Glue the wire to the moon and glue on the other white glitter moon shape.

 There is a hole in the center of roof. I used a pin to locate the center.  Slide the wire through the hole.

Slide the wire through the black glitter base and bend the wire 1/4 of an inch at a right angle.

Glue the tabs of the house onto the base.  Make sure that the front of the house is facing away from the tab in the back of the base.

Crease the tabs on the tree and fold the center of the tree in half at the dotted line. Slide the tabs into the base and glue the tabs down.

The tree will be facing away from the house when the tabs of the tree are glued down. Glue the gingerbread soffit to both sides of the house.


Glue and stack the four gear axles together. Notice that I do not use a lot of glue because too much glue will warp the cardstock

Apply glue to the axle and adhere the stack of four axles to the base.

I used a small knife to apply pressure to the glue on the base so that it would adhere.

There will be a slight overhang.  Make sure that the overhang is centered.

Glue the two sides of the "Boo" together. Glue the ghosts together but leave the tabs at the bottom and the arms unglued. The tabs at the bottom will be splayed apart later and the "Boo" will be held together at the arms.

Insert the tabs of the ghosts into the gear, splay the tabs and then glue them down as shown above.

Splay the arms of each ghost and insert the "Boo".  Apply glue and adhere the two sides of the arms together

Glue the outer gear casing to the gear axle and casing template.

Glue the three gears together to create one sturdy gear that will rotate without warping.

Place the stacked gears on top of the outer gear casing assembly.  

Place the black glitter outer gear casing on top of the assembly. Apply glue to the haunted house base and adhere it to the center of the assembly.

Glue the outer gear casing with tabs to the outer gear casing. 

Glue opposite sides together so that the casing is centered correctly. Repeat for the other tabs.

The gear assembly is now complete and the gear should move freely.

Make the Box

Crease the bottom of the box as shown above.

Glue the tabs of the sides together and apply glue to the inner tabs of the box. Adhere the bottom of the box to the tabs.

Turn the box over and apply glue to the tabs.  Adhere the bottom of the box.  The box is two walled to make a sturdy box.

Glue the pumpkins on the black glitter top. Glue the tabs of the sides together.  

Apply glue to the inner tabs of the box. Adhere the top of the box to the tabs.

Turn the top of the box over and apply glue to the tabs.  Adhere the top of the box.

Apply glue to the top of the box. Adhere the gear assembly to the top.

Make sure the gear assembly is centered correctly.

Glue a piece of cotton to the end of the ghost.

Insert the cotton into the center turret and apply a drop of glue to the side of the ghost to adhere it to the turret fence.


Thursday, September 7, 2023

A STEM Project: A Crank That Moves a Rod In a Circular Motion

A crank is a mechanism whereby a rod is attached at a right angle to an axle. When the axle is moved, the rod which is connected to the axle moves in a circular motion.

Here is a video of the crank in action.

Make the Small Presentation Box

Using the directions from this blog posting, make the small presentation box. https://papercraftetc.blogspot.com/2019/02/rectangular-and-square-presentation-box.html

Make the Crank Mechanism

Here is the PDF. I used 65 lb cardstock.

Here is the SVG for all other cutting machines. The file goes beyond the viewable area.  Zoom out to see the entire file.


Make the axle.  There is one more piece that makes the axle but it is not shown.

Apply glue to the tabs and make a prism out of each piece.

Apply glue to the interior of both three sided pieces.

Bad photo but the two pieces are facing away as an L shape.  Make the center cross piece by gluing into a prism and glue the interior of both three sided pieces.

Insert the center cross piece.  The axle will look as above.

Apply glue to the rod and make into a prism.

Crease the end of the rod.

Fold the rod tab around the center cross piece. Apply glue to the tab on the rod as shown above.

Attach the tab to the rod to create a loop around the axle.

Place the axle into the presentation box.  Apply glue to the axle tabs.

Slide on the decorative gear and adhere the axle tab.

Apply glue to the decorative tab and adhere it to the decorative tab on one side.  On the other side, make the crank handle and then insert it into the side of the decorative gear.  Apply glue to the crank handle and adhere the tabs. 

Apply glue to the underside of the decorative gear and adhere to the other side of the box.

Apply glue to the top of the presentation box and adhere the square top.

The crank mechanism can be rotated in either direction to create a circular motion.