Ralston – A former Ralston resident will give $7.5 million toward an economic development effort known as the Hinge project. The project will develop the area around 72nd and Main streets in Ralston, connecting the corridor by the Ralston Arena with the city’s downtown district. Sketch Project (hinge pin profile) Sketch Offset (.25mm from hinge pin profile) I create another sketch on the bottom plane of the other part, then project the profile of the hinge pin I made previously. I offset this by.25mm to give me the proper amount of play in the hinge. Create Extrude (hinge. Defense Logistics Agency (DLA) Headquarters HVAC and Energy Study. Government Project. 124 likes 2 talking about this. Hand-stitched leather products made in Maine. Hinges and pins are about transferring shear forces. Hinge and pin connections are some of the simplest steel to steel connections that we find. They are often very lightweight in appearance. They do not have extra steel in the connection to reinforce the connection for any other purpose that providing material to resist shear forces.
Pneumatic is the science and technology of using air* pressure to transmit force and mechanical energy. Pneumatic tools can be found in most mechanic shops and factories. Many automated machinery use pneumatics to control the moving parts.
In this project you will make a mechanical lift using two syringes. One used as a pump to create pressurized air and the other used to create a mechanical movement and lifting a load.
*Other gases may also be used in pneumatic systems.
For students ages 8 and above. Adult supervision and support is required.
List of Materials
Materials you need for the construction of a pneumatic lift are listed below. The same materials come in a kit from MiniScience.com. If you have purchased a kit, please verify the kit content to make sure that you have all the materials before you start. Wood glue is needed but not included in the kit. You will also need a small Philips screw driver and a ruler or measuring tape. Additional optional materials may be used to enhance this model.
This is an engineering and technology project. The purpose of this project is to build a working model of a basic pneumatic lift. Students will learn about the concept and practice of pneumatics, transfer of energy, changing the direction of force, measurements, reading and following technical instructions, use of tools, craft skills for construction of a wooden model. Students will be evaluated by the precision, function and appearance of their model as well as their understanding about pneumatics. Additional creativity, problem solving skills and input in design will be a plus and may qualify for extra credit.
1. Make the Top Frame (Moving Frame or Lift)
Locate two of the 7” long wood blocks with holes and two of the 3.5” wood blocks. Place the pieces next to each other as shown in this diagram. Make sure that the holes on the 7” wood blocks are lined up and the width of the frame is 3.5'. Also make sure that the pieces are connected in a right (90º) angle. Glue the pieces together to make your first frame. Give it enough time for glue to dry (usually more than one hour).
2. Make the Main Frame
The main frame consists of two separate frames connected to each other using 4 of the 1.5' wood blocks. Start by making one frame exactly the same as the top frame. Then make another frame similar to the top frame but without holes. Finally use the 1.5' long wood blocks to connect these two frames to each other. The completed main frame must look like the image on the right.
See Full List On Structuremag.org
3. Prepare the mounting base for the clamp and lower cylinder.
Insert a wood dowel in the holes of the main frame and center it. Place the flat wood block under the wood dowel and center it as shown. Apply glue to both sides of the wood dowel touching the flat wood block. Allow the glue to dry before moving the main frame.
Once the wood dowel and the flat wood block are glued together, you can lift the base and turn the wood around and mount the clamp on it. Note that the clamp has a self-adhesive bottom. Remove the protective film of the adhesive pad and place the clamp on the wood block. Apply some pressure to secure it. The glue at the bottom of the clamp is not very strong. It is a good idea to wrap the clamp base and flat wood block with cable tie or steel wire for additional strength.
4. Connect Syringes to each other
In one of the syringes (with hole on the shaft) push the piston all the way in to empty all the air. In the other syringe (with no hole on the shaft) pull the piston outward until it stops. Use the clear plastic tube to connect the two syringes to each other. Push the plastic tube and syringe firmly into each other to form a strong sealed connection.
5. Mount the hinge or hinges
You may use one large hinge or two smaller hinges to connect the lift (top frame) to the base (main frame). Start by placing the lift frame on the main frame and align all the sides. Place the hinge so that the axle of the hinge is right over the seam between the two frames. Mark the holes for the screws. Then use a pin to punch pilot holes for the screws and then mount the hinge. Installation of the hinge requires attention and precision. If you have one hinge, place it in the center. If you have two hinges, mount them near the sides.
Note that the holes on the lift (top frame) must be close to the hinge while the holes of the base are toward the ground and away from the hinge.
|In this image you can see the completed wood frame without the plastic clamp and syringes.|
6. Mount the lifting cylinder
The syringe with a hole on the shaft is used as a lifting cylinder and must be installed inside the main frame. Pass the lifting cylinder through the front small opening until the hole of the shaft is aligned with the hole on the lift. Pass a wood dowel from the holes to connect the shaft to the lift.
|Now secure the lower part of the syringe with the plastic clamp on the mounting base. If you have not already attached the clamp to the mounting base, you can do it now. You may need to practice with the clamp and see how it can hold the syringe snugly before mounting it.|
|At this time you may also use other methods to tighten the contact of the clamp with its base. The image on the right shows how cable ties may be used for this purpose. Some may use strong glues or steel wires for this purpose. The pressure on the clamp is high and it is a good idea to use additional materials to strengthen its connection to the base. This may not be needed if you are not testing your pneumatic lift with heavy loads.|
7. Do the final touch
The wood dowels and the shaft of the lifting cylinder may slide to the left and right. To keep them in place insert a few O-rings over the wood dowels where you deem needed. You will usually need two o-rings for the sides of the lifting cylinder shaft. You will also need one o-ring where the shaft exits the frame.
8. Test your pneumatic lift
The syringe outside of the main frame is used as a pump to control the air pressure (gas pressure). Move the shaft of the outside syringe in and out to see how your lift works.
|If you don't have this kit, you can order it now! It is available both as a single pack and class pack. Kit content may be different from the images shown in this page.|
The U.S. Department of Transportation (USDOT) announced Wednesday that it had awarded more than $41 million in grants to more than a dozen states for projects designed to improve transportation access to those with disabilities and mobility challenges.
Grants were provided through two different programs, the Complete Trip – ITS4US Deployment Program and the Inclusive Design Challenge program.
“These exciting projects support the development of new innovative, inclusive, and affordable transportation technologies that address mobility and access challenges,” said U.S. Secretary of Transportation Elaine L. Chao.
SSEF - Fun Is In The Details - Hinge And Pin Connections
Five awardees were provided more than $38 million in grants through the Complete Trip program. These grants are awarded to communities that engage in innovative business partnerships, technologies, and practices that promote independent mobility for all.
The projects funded through the Complete Trip program include more than $9 million for the Atlanta Regional Commission for its Safe Trip in Connected Transportation Network and nearly $11.5 million for the University of Washington for its Accessible Mapping Standards and Data Collaboration Drive Accessible Multimodal Active Transportation and Mobility project.
The USDOT also provided 10 semifinalists with $3 million in grants through the Inclusive Design Challenge. The semi-finalists will receive $300,000 and have 18 months to develop prototypes that make Autonomous Vehicles more accessible to individuals with disabilities through hardware or software solutions. In 2022, the department will select three winners who will split the remaining $2 million in prize money.
The DOT said that 47 projects were submitted for the Design Challenge from the automotive industry, academic institutions, and individuals in 21 states.
The winning teams included Purdue University and its “Efficient, Accessible and Safe Interaction in a Real Integrated Design Environment for Riders with disabilities (EASI RIDER)” project, and the University of Kansas and its “Optimizing Highly Automated Driving Systems for People with Cognitive Disabilities” project.