http://personal.psu.edu/iwd5045/edsgn100_su15_section204_team6_dp2.pdf  

 

EDSGN 100: Introduction to Engineering Design  Section 204 Team 6  

 

Submitted by: Roland Leach, Hoyt Hoelper, Isaac DuVall, Marissa Miller  Submitted to: Xinli Wu  

 

Summer 2015  

Abstract:  

 

 

The project’s goal was to design a dumpling maker. Each team member developed individual designs which were analyze based on the design specifications and customer needs assessment. This process revealed the final design, for which a prototype was built, along with working drawings and a bill of materials.    

 

 

 

Table of contents  ● Cover Page-----------------------------------------------(Hoyt Hoelper, Jordan Gitzen, Roland

Leach,Isaac DuVall,  Marissa Miller ) ● Abstract --------------------------------------------------II (Isaac DuVall) ● Table of Contents-----------------------------------------(Roland Leach) ● Introduction----------------------------------------------(Hoyt Hoelper, Jordan Gitzen) ● Description of design task

○ Problem Statement ---------------------------------(Marissa Miller, Jordan Gitzen) ○ Mission Statement -------------------------------(Marissa Miller) ○ Design Specifications-----------------------------given

● Design Approach ○ Customer Needs Assessment ---------------------(Marissa Miller, Roland Leach) ○ Gantt chart -----------------------------------------(Marissa Miller) ○ Concept Generation-------------------------------(Roland Leach,  Isaac DuVall,

Jordan Gitzen) ○ Concept Selection with Design Matrix------------(Roland Leach,  Isaac DuVall,

Jordan Gitzen) ● Final Design

○ Working Drawing ----------------------------------(Marissa Miller, ○ Prototype (images, scale)---------------------------(Hoyt Hoelper, Jordan Gitzen,

Roland Leach) ○ Features---------------------------------------------- (Hoyt Hoelper, Jordan Gitzen) ○ Operation Instruction------------------------------- (Hoyt Hoelper, Jordan Gitzen)

● Engineering Analysis ○ Working Mechanism --------------------------------(Roland Leach) ○ Cost Analysis --------------------------------------- (Isaac DuVall)

● Conclusion ---------------------------------------------------(Hoyt Hoelper) ● References (if any) ------------------------------------------ (Isaac DuVall) ● Acknowledgement (if any) ----------------------------------

 

 

   

 

 

 

Introduction: Our group was given a problem involving the ability for potential customers to

quickly and easily make dumplings using an automated dumpling maker. Our group first

identified the problems of making dumplings, then determined our goal to meet specific design

specifications given. Our group followed a specific design approach, involving a customer needs

assessment, brainstorming, and a selection matrix to determine the best idea. Next we created the

prototype and working drawings to allow for the production of the product as well as the

instructions to assemble and use. These working drawings contain a list of materials as well.

Finally we analyzed our design to make sure it worked in the most efficient way possible. Then

after our product was analyzed and perfected, we made a justifiable price based off of our cost

analysis.  

 

 

 

 

   

 

 

 

Description of Design task  

Problem Statement:  

The problem faced was that there was no efficient way for an individual to make and

cook dumplings. Manually making dumplings required time and patience. Buying pre-made

dumplings was not cost efficient and limited filling options.  

Mission Statement:  

This mission was to design and build a machine used as a safe and efficient alternative to

manually making dumplings. It is capable of producing at least ten dumplings in one minute or

less. The dumpling maker has a material cost of less than $200 and is made of material that is

dishwasher safe.  

Design Specifications:  

● The dumpling maker should be automatic or semi-automatic.

● The dumpling maker should produce no less than 10 dumplings per minute on average.

● The material cost for the dumpling maker should not exceed $200 unless it can be

justified.

● The dumpling maker should be safe as a food processor, easy to maintain, safe to use,

and dishwasher safe.

 

 

   

 

 

Design Approach:  

Customer Needs Assessment:  

1. How often do you eat dumplings, and are you cooking them yourself or buying from a

restaurant?

a. Most people rarely make dumplings except if it is a part of their cultural tradition,

then it was about once or possibly twice a month. Many people eat dumplings at

restaurants, also around once a month

2. On average, how many do you make/eat each time?

a. Around 5-10 per individual person was where the answers ranged.

3. How long does it take?

a. People making dumplings themselves said it took considerable time, and many of

those resorted to buying frozen dumplings to cut on the preparation time.

4. Do you currently use a dumpling maker?

a. Nobody had a dumpling maker, but no professional dumpling makers/ restaurant

workers or owners were asked

5. If not, would you buy a dumpling maker?

a. All said they would.

6. Are there any specific features you would like it to have?

a. Everyone said they would want it to be easy to clean and easy to store.

 

 

Gantt chart:  

 

 

 

FIG. 1 Gantt chart  

Concept generation:  

 

 

 

 

 

 

 

 

 

 

FIG. 2-5 Concept generation  

Design Matrices:  

 

 

 

 

 

 

 

Table 1 &2. Design Matrices  

Concept selection:  

The lazy susan design was selected due to its superiority over the other design, being a middle ground between cost efficiency, ease of production, and ease of use. Other designs all had major tradeoffs in return for their positives. The lazy susan design concept consists of all the qualities a customer would want in a dumpling maker without a lacking in one certain aspect. All the other concepts lacked in a certain quality that would create less interest in purchasing. Hence, the lazy susan was chosen to design in thinking of the customer’s wants.    

 

 

Final Design  

Working Drawing:  FIG. 6-8 Working Drawings  

   

 

 

 

   

 

 

   

 

 

   

FIG. 9 Assembly drawing          

 

 

 Prototype: The prototype for our final design was constructed at a 1:1 scale.

   

 Features: The dumpling maker consists of a motorized round base on which 10 folding molds are settled in specially designed resting holes. An upper level holds the hoppers for both the filling and the dough, as well the dough flattener. Motor and sensory array are necessary for the upper level in order to be able to know when to release the fillings and dough as well as for when the flattener must be used. They are also needed for the machines to know how much of the dough and filling is needed to be released on each turn. Beneath the round base, a small arm actuator is placed in order to pull down the mold down to shape, and eject the dumplings. Finally there is a small chute for the formed dumplings to be ejected onto and then placed onto a plate or other dish.    Operation Instruction: First, make dough and fillings manually, then place each in their respective hoppers. Place a container or dish at the end of the dumpling chute to catch the dumplings once created. Switch the machine to the “on” position, as the machine is fully automated no other steps need to be taken to ensure operation. However it is recommended what small amounts of excess dough are trimmed be collected and returned to the hopper periodically, or disposed off depending upon if an excess of dough was made initially. After the desired amount of dumplings are made the machine can be switched off and cleaned. It is recommended that the machine be cleaned after every use.      

 

 

 Engineering Analysis  

 Working Mechanism: The dough dispenser operates in specific increments, where it lands on the dumpling assembly. The dough rotates on the lazy susan where it is next flattened by a press, it rotates further where it has filling placed inside, further rotating until the dumpling assembly closes, folding the dumpling into its shape, where the dumpling assembly then tilts, allowing the completed dumpling to fall down the ramp and onto a plate.    Cost Analysis:  

Item   Description   Number required  

Cost/Item   Total Cost  

Folding mold   1 Pc Kitchen Dumpling tool  

10   $0.68 (1)   $6.80  

Circular base   20” wide rim pizza pan, Aluminum  

1   $4.39 (2)   $4.39  

Dough Dispenser  

Batter Dispenser, 4-cup capacity  

1   $6.95 (3)   $6.95  

Stuffing dispenser  

13-oz. Food Dispenser, silver  

1   $48.80(4)*   $48.80  

Framing Bars   2”x3”x24” Aluminum bars 6061-T6 Bare  

12   $1.40 (5)**   $16.80  

Device motor   Compact 12,000 RPM Hobby Motor 1.5V ~ 3V DC    

1   $0.69 (6)   $0.69  

         

 *The price per unit decreased with the number of units purchased.  **12-foot bars came at a cost of $8.40 from this vendor  The overall cost for our dumpling maker came to be    

 

 

 Conclusion: Our Engineering Design 100 class was tasked with the design and construction of a prototype dumpling maker. We were given a basic set of criteria to meet, and through a customer needs assessment we were able to come up with a further specified criteria to meet, more customized to what potential customers want. We honed basic ideas through the engineering process in order to come up with a design that met the criteria in the best possible way for the least cost. Our final design was geared more towards restaurant owners making dumplings in mass quantities. After creating our final design we used PVC pipe, wood, particle board, and cardboard to create a prototype in the model shop. Throughout the completion of our project we learned a variety of skills, how to work in a group, meet the needs of a customer, how to manage time, and for some of us how to use power tools. These skills we learned will be good to apply to future projects.      

 

 

   References :  Sources for Cost of Materials  

1. Ali Express, http://shoppingcart.aliexpress.com/shopcart/shopcartDetail.htm 2. Twin City Restaurant Equipment & Supply,

https://www.twincityrestaurantequipment.com/Winco-APZT-20-Wide-Rim-Pizza-Pan-p/WIPSAPZT20.htm?gclid=Cj0KEQjwgLGuBRCqptLsnJCvh-wBEiQAiNRjsbN-JzmO4lNY1-7zxroDfGlSwhwWFlPbDRGv-xwCmXcaAsQ28P8HAQ

3. LTD Commodities, http://www.ltdcommodities.com/Housewares---Dining/Tools---Gadgets/Better+Breakfast+Batter+Dispenser/prod880249.jmp?cid=GooglePLA-%7Bproduct_id%7D&cid=GooglePLA-%7Bproduct_id%7D&cid=GooglePLA-%7Bproduct_id%7D&cid=GooglePLA-%7Bproduct_id%7D&adpos=1o1&creative=62943046873&device=c&matchtype=&network=g&gclid=Cj0KEQjwgLGuBRCqptLsnJCvh-wBEiQAiNRjsa0GzgSq3aHBG9Wxb8vDN5e61XoiG0zyEv0We4pnL_gaAv_w8P8HAQ

4. Displays2Go, http://www.displays2go.com/P-11810/Coffee-Bean-Dispenser-Silver-Finished-Metal-Design-12-Cup-Capacity?st=Category&sid=24047

5. Online Metals.com, http://www.onlinemetals.com/basket.cfm?pidadd=20161&CFID=23541435&CFTOKEN=18630951

6. Multicomp Compact Electronoics, http://www.mcmelectronics.com/product/28-12811?scode=GS401&utm_medium=cse&utm_source=google&utm_campaign=google&catargetid=530004080000379009&cadevice=c&gclid=Cj0KEQjwgLGuBRCqptLsnJCvh-wBEiQAiNRjsaLyXjLY7F_It8qDbjd46MXZCis2NG1qACja30MODtYaAjRa8P8HAQ&utm_expid=8634549-27.0czCl7fSQamjILoiAH9mgA.0&utm_referrer=http%3A%2F%2Fwww.google.com%2Faclk%3Fsa%3Dl%26ai%3DC1p4jQgjNVZC_BYWIxAT30JiICbr9wLIGwvn6pvIB6rTK49gCCAkQASDWzs8eKARgyZ6ujNCk_BGgAbeCov8DyAEHqgQlT9DaKfaqYiz9gTUgbLDYKLVphiJOPAFN5eBbYVYh1BllH39x7sAFBaAGJoAHsf1diAcBkAcCqAemvhvYBwHgEpeSr4OXs9XmPw%26sig%3DAOD64_0kkfcYKLB2K66-IVr4e5Yiu7Aq1w%26ctype%3D5%26clui%3D1%26rct%3Dj%26q%3D%26ved%3D0CCUQ2ilqFQoTCPP2-Nn8pscCFUk7PgodNEUDwg%26adurl%3Dhttp%3A%2F%2Fwww.mcmelectronics.com%2Fproduct%2F28-12811%253Fscode%253DGS401%2526utm_medium%253Dcse%2526utm_source%253Dgoogle%2526utm_campaign%253Dgoogle%2526catargetid%253D530004080000379009%2526cadevice%253Dc

7. Acknowledgement (if any):