Frame DXF Files

Linked from Christmas Gift to the World. These are files for the Brick Press frame according to the Torch Table Digital Fabrication Process.

Conceptual Reference - Main CEB Frame Assembly

Note: CNC torch table version has one lip on bottom u-channel and the compression chamber plates are converted to a single plate.

Context:

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Digital Master Index (CAM Master Index)

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DXF Files

Download this complete library folder and put it in your LibreCAD or other software platform library folder. See LibreCAD#Filepath_for_Parts for directory structure in Ubuntu. Download individual files: File:Framelibrary.zip. Download nested file with multiples of library files as needed. DXF, full scale (units are inches, frame height is ~44" tall). File:CEB frame.dxf. Note: difference between complete file and individual files is that complete file collapses multiple objects into a single object, so the objects in the complete file cannot be modified.

• File:L-F1.dxf
• File:L-F2.dxf
• File:L-F3.dxf
• File:L-F4.dxf
• File:L-F5.dxf
• File:L-F6.dxf
• File:L-F7.dxf
• File:L-F8.dxf

Frame Assembly Procedure from Flat Cutouts

Model Cutting

To do a model test cut:

1. Look at http://opensourceecology.org/wiki/Frame_DXF_Files#DXF_Files
2. Download the File:CEB frame.dxf
3. Cut these out on laser. Size is 44", reduce it 1/4 scale to make it workable.
4. Assemble. Glue the lips and other pieces together. This test asssesses that all fits together as it should to obtain a 3D structure from 2D cuts. Use pins of some sort in the bolt holes. The bolt holes make the frame adjustable for exact fit. The space between the 2 verticals should be exactly 16.2 inches - scaled down by your scale factor. That is the ultimate test. And, this should be adjustable by 0.4" in either direction. We are exploring perfect fit (+/- 1/32") with unskilled labor - which CNC allows.
5. See the annotated picture of the real frame. Taking pic now. 5:08 PM CST on Sunday.

Model Assembly

To assemble the frame, do analogous procedure to the procedure that would occur in metal. Note that when working with flats, the u-channel has to be build from weldments. However, the u-channel is not built first - but instead: First, pieces are bolted together. The structure still remains as a 2D assembly - while allowing for perfect alignment. Second, the 3D Structure is Assembled - The bolted together faces are spannen with the vertical U-Channel Webbing.

Build Procedure in Model Material (Cardboard, Wood, Plastic)

Note: full-size machine uses 1/2" steel plate and 3/4" bolts. A quarter scale model can be made as follows - us 1/8 bolts to assemble it.

1. CNC Laser Cut or CNC Rout all CEB Frame model parts from DXF file above.
2. Bolt Top and Bottom Face Plate to U-Channel Lips.
3. Bolt Compression Chamber Spacer to Side U-Channel
4. Fit Side U-Channel Face in place
5. Fit 6"x12" rectangular tube inside frame as a spacer
6. Square up sides, D-lamp frame together, tack the U-Channel in place
7. Tack U-Channel lips on the Top Face Plate, and tack bottom u-channel lip to Bottom Face Plate.

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