CEGS Frame

1. Use Onshape to create a temporary copy of the system that has all components hidden except for:
   1. 8020 frame components. This includes all strut, brackets, t-nuts, and slide-lock parts.
   2. Fitting hangers
   3. Screws associated with t-nuts
2. Create a cut-list for the 8020 strut. Cut longest pieces first.
   • The length of the pieces must be accurate to the model and all cuts must be square.
   • Use the rotary saw for long pieces and the table saw for shorter ones.
   • Label every piece with its length
3. Identify pieces which need to be tapped on the ends. Hold pieces in the vice an use a 1/4-20 tap held in the drill.

Assembling the Frame

1. Start with the base of the frame and work upwards. Keep screws only loosely tightened until every piece has been assembled.
2. For every piece of strut, check the model to find the number and type of t-nuts it has, as well as their order on the strut. This cannot be easily changed later. Insert t-nuts with the chamfered side up.
3. Assembly sequence
   1. Base
   2. Legs
   3. Top
   4. VM and Process strut
   5. IM section strut
   6. LN Manifold and FTC bank bar strut
   7. Control box support bars
4. Use the model to position the struts at the correct distance from one another.
5. Tighten screws and square up the frame
   • Use square blocks, clamps, and parallels.
   1. Tighten the screws which are threaded into the top bars at each corner.
   2. Position the inner width of the base and tighten the screws. Check that the base is square using a ruler form on diagonally opposite corner to another.
   3. Square up and tighten the front legs (IM) first, then position the back. The distance from the front to the base must be accurate.
   4. Tighten and square the top bars.
   5. Position the cross bars for the VM and Process section, but leave the screws loose. These bars will be positioned according to the plumbing.
   6. Position the FTC bank bar and use a level to make it flat.
6. Assemble the bars for the IP carriage and LN manifold(s), loosely attach them to the frame.
7. Loosely attach fitting hangers and control box bars.
8. Double check for squareness and that all t-nuts are present.
   • If a t-nut is missing, now is the only time to fix it before the frame is laden with plumbing and assemblies.
9. Use rubbing alcohol to remove any sharpie marks.