- Level: University Degree
- Subject: Business and Administrative studies
- Word count: 2070
This assignment will take the form or a two-part answer. There will be the re-written Product Design Specification (PDS) as required to the British Standard BS7373-1:2001. After this there will be an appendix listing all my thought processes, questions...
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Introduction
This assignment will take the form or a two-part answer. There will be the re-written Product Design Specification (PDS) as required to the British Standard BS7373-1:2001. After this there will be an appendix listing all my thought processes, questions put back to the customer to remove ambiguous aspects of their original PDS and the customer's feedback to those questions. These listings will be referenced from within the re-written PDS. The Re-written PDS Product/System: Llamedos Engineering Electric Hand Drill Date: 17/12/01 Sheet No. : 1 of 1 Issue No. : 1101:12/01 Requirements Parameters Performance Environment Maintenance Cost Quantity Aesthetics/Ergonomics Size/Weight Safety Capable of taking drill bits up to 0.5 inch/13mm diameter Operate from 240 volt, 50 Hz power supply Capable of two speed operation in the range of 0-1250rpm and 0-3000rpm Have a hammer action Use standard parts for all bearings and gear components. Able to operate internally and externally, within a temperature range of -20�C to +40�C Have no adverse effects from dirt, dust or ingress of oil or grease Capable of operation where combustible dusts are present Capable of being dismantled down to basic standard parts, for ease of maintenance Only tool to be used for assembly and repair is a No. 2 crosshead screwdriver. ...read more.
Middle
Customer Decision - Use the speeds provided by the designer as this will correlate with the figures given for the different materials to be cut. Control will be via a variable trigger as is standard on many drills already on the market. Have a hammer action - No comment to be made. Must have a hammer action. Operate continuously for long periods of time - What is considered to be a long period of time? Customer Decision - No answer to that. Remove from PDS. Suitable for soft and hard drilling - What is soft and hard drilling? All drills are reliant upon the type of drill bit being suitable for the material being cut. Customer Decision - No answer to that. Remove from PDS Eccentricity of drilling action must be limited to 0.01 inches, for drill bits up to 12 inches in length -Is the eccentricity crucial to this type of machine? To achieve this sort of accuracy it will be necessary to use very high quality bearings and gearing systems. This will push the cost of the drill up and also any benefit would be lost due to the fact that this is a hand drill and an end user will not be able to drill a hole with such accuracy. ...read more.
Conclusion
Customer Decision - Accept what the designer has said and will accept an oil blacked chuck as alternative Size/Weight Maximum weight of 3kg Overall length not to exceed 30cm - No significant concerns here. Allows room for designer to manoeuvre. Safety Complies with all relevant British Standards - Is the drill intended for foreign markets. If so then further legislation may need to be adhered to, to be accepted in other countries. Customer Decision - As stated in Performance drill will only be for domestic markets at the moment .If a decision to move to foreign markets is accepted later then the drill can be compared against foreign standards. Examples of Competitors Drills Currently On Market Dewalt DEW505K Percussion Drill 701w 240v This Dewalt Power Impact Drill has soft grip handle, two speeds, both variable and reversible, side handle, and depth stop. Complete in carrying case with chuck key. Power Input 701w. Chuck Capacity. 13mm. No.Load Speeds . 0-1100 -02700 rpm. 230v. Drilling Capacities. Wood. 35mm. Steel. 13mm. Concrete. 20mm. Price: �174.99 NuTool NPT650 650w Hammer Drill 13mm H.D. key operated chuck. 2 speed settings. Variable speed. Weight 3.0kgs. Side handle and depth stop. Price: �39.95 Date Submitted-: 17th December 2001. 1 Product Design Specification Student : Digby Eade Page 1 of 5 ...read more.
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