COMPLETE FABRICATION

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1B – Press-Fit final

Computer stand for in-bed use.

Material: 0.5″ Plywood (measured at ~0.46″)

Offset for press-fit joints: 0.01″

Machine: ShopBot

Bit: 0.25″ Flat End Mill

Speed: 14,000 RPM

Feed: 1.7 in/min

Each inside corner is filleted with a dog-bone pocket.

ShopBot action shot I

ShopBot action shot II

Milled pieces

Assembled stand: front view

Assembled stand: side view

Assembled stand: 3/4 view

Assembled stand: bottom view

Structural joints

Frame joinery

The piece came together with moderate effort. An offset of 0.01″ proved to be too small for every joint. Joint incongruities were fixed using a Dremel to remove another ~0.01″ to ~0.02″ total from the top and bottom of each male element. The final product is stable and suitable for use. There are a number of improvements that can be made with an additional design iterations: the stand needs more material to eliminate minor flexing issues, larger offsets are needed for slot joints, and higher quality wood is needed to eliminate chipping in the plywood layers and improve strength and aesthetics. An alternative to the offset problem would be to surface mill the male joint elements, this would provide some improvements to overall material thickness regularity.

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4.196 Special Problems in Architectural Design Complete Fabrications Nick Gelpi Mon-Fri, Jan 5-7, 10-11, 13-14, 18, 20-21, 24-25, 27-28, 01-04:00pm, 3-402/7-432studio, 1st mtg Wed 1/5 Pre-register on WebSIS and attend first class. No listeners Prereq: Permission of instructor ; Yr-1 MArch students who have completed 4.123 only Level: H 9 units Standard A - F Grading Can be repeated for credit Lab Fee: 150 A comprehensive introduction to methods of “making” explored through a wide range of brief but focused exercises. Skills = developing complex geometries from flat components; fine-tuning press fit construction, molding and casting, and making repeatable molds for customization. A two-part workshop, the first half will contextualize contemporary tools and techniques within the trajectories of historical case studies of building, combined with hands on familiarization of tools. The second half will implement the tools of our workshop in the context of Design. Working on group design build process for three MIT 150 FAST installations, students will test and influencing designs through the instrumentality of production. These hands-on design build projects are intended to produce reciprocity between skills and design, making more complete the problems of fabrication. Subject limited to year-one MArch students who have completed core-1 studio. Contact: Nick Gelpi, 9-224, 253-9415, ngelpi@mit.edu -

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