digplanet beta 1: Athena
Share digplanet:


Applied sciences






















A cylinder with longitudinal draft
Profile view of a drafted cylinder with the draft dimension

In engineering, draft is the amount of taper for molded or cast parts perpendicular to the parting line. It can be measured in degrees or mm/mm (in/in).

Consider the fabrication of a hollow plastic box, without lid. Once the plastic has hardened around the mold, the mold must be removed. As the plastic hardens, it may contract slightly. By tapering the sides of the mold by an appropriate "draft angle", the mold will be easier to remove.

If the mold is to be removed from the top, the box should taper in towards the bottom, such that measuring the bottom internal dimension will yield a smaller length and width than measuring the top from which the mold is extracted.

By specifying the opening length and width, a draft angle, and a depth, it is not necessary to specify the dimensions for the internal surface, as these may be calculated from the above.

The manufacture of a part that incorporates zero or negative angles may require a mold that can be separated into two or more parts, in order to release the casting.

External links[edit]

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Draft_(engineering) — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
378396 videos foundNext > 

Engineering Technologies: Engineering Graphics and Design/Drafting

Learn about the Engineering Graphics and Design/Drafting program in the Engineering Technologies Division at OSU Institute of Technology in Okmulgee, OK ...

What is Engineering Drafting and Design?

www.nti.edu or (952) 944-0080 Is an Engineering Design career good for you? Check out this video and ask us any questions you have. We welcome you to ...

Introduction To Engineering Drawing

We make it Ez for you to understand What is Engineering Drawing ? What are the different types of Drawing Instruments and its uses ? Lines and Types of Lines ...

Submitting a Draft Engineering Competency Claim as a PDP Participant

eChartered tutorial on submitting a Draft Engineering Competency Claim as a PDP Participant.

Home-made red wine on draft! Engineering is fun.

Draft (engineering) Top # 5 Facts

SIAST - Engineering Design and Drafting Technology

A profile of SIAST's Engineering Design and Drafting Technology program at Palliser Campus in Moose Jaw, SK.

draft landscape design of engineering faculty, gorontalo state university

engineering draft

Prime Resins (Engineering Landing Page - draft)

Prime Resins, Inc. is a leading manufacturer of polyurethane grouts, epoxies and polyurea resins used for infrastructure repair and restoration. For over ...

378396 videos foundNext > 

48 news items

Minneapolis Star Tribune

Minneapolis Star Tribune
Thu, 19 Nov 2015 13:23:53 -0800

City planners noted the new hotel's parking capacity may be impacted by alignment of the Gold Line, which has just completed its draft engineering documents as its backers seek federal funding. Its route would include a potential station on 4th St. N ...

Asbury Park Press

Asbury Park Press
Sun, 04 Jan 2015 21:03:35 -0800

23, to the U.S. District Court of New Jersey says FEMA has directed its contracted engineering firms to provide FEMA with any draft engineering reports connected to the approximately 1,500 pending civil cases in the region within 21 days. Those drafts ...

MyPalmBeachPost (subscription)

MyPalmBeachPost (subscription)
Fri, 10 Jul 2015 08:55:14 -0700

A draft engineering report issued about a month before the drowning death of worker Herminio PadilloJr. found heavy corrosion, cracked concrete, exposed rebar and problems with gratings and guard rails throughout the plant and listed several million ...

Al Jazeera America

Al Jazeera America
Sun, 22 Feb 2015 23:44:01 -0800

Victoria Marvelli and her husband, Al Marvelli, thought they had finally made it. Just two days before Christmas in 2011, they closed on their dream home, nestled at the end of a cul-de-sac right on the water in the quiet coastal town of Seaford, New York.

NJ Spotlight

NJ Spotlight
Thu, 12 Mar 2015 22:03:45 -0700

Last November, a magistrate judge in New York ordered all insurance companies in his district involved in Sandy-related litigation to turn over thousands of draft engineering reports to homeowners who may have been similarly affected. The following ...
MyPalmBeachPost (subscription)
Thu, 16 Jul 2015 14:00:55 -0700

A draft engineering report issued a month before his drowning found corrosion, cracked concrete, exposed rebar and problems with gratings and guardrails throughout the plant and several million dollars of needed equipment maintenance. In a February ...
Mon, 20 Apr 2015 14:35:03 -0700

Further, "In the last year, an in-house team of analysts at DSNY has adapted the methodology from the draft engineering report to better fit New York City's unique characteristics. That summary report will be released in conjunction with the PlaNYC ...

Peninsula Daily

Peninsula Daily
Fri, 10 Apr 2015 00:41:18 -0700

August: Draft engineering design report to be completed 60 days after the cleanup action plan is finalized. □ October: Finalize the engineering design report. □ March 2016: Start cleanup within 120 days of approval of the engineering design ...

Oops, we seem to be having trouble contacting Twitter

Support Wikipedia

A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia. Please add your support for Wikipedia!

Searchlight Group

Digplanet also receives support from Searchlight Group. Visit Searchlight