QO100 POTY Antenna Covers

POTY Covers for QO100 dish antenna

• Models built based on standard JG Tech POTY with N-Type connector (unmodified) and Bullseye LNB with modified endcap

• Best printed using ASA or PCTG filament

• Assembled using rubber gasket on LNB and mount section with 20mm stainless steel cheese-head screws, serration washer, flat washer and nyloc nut. Do not over tighten because this can crack the printed parts.

This is the printing and assembly process I followed:

• Print CoverPOTY (0.2mm, honeycomb, 30% infill profile) then remove support material from grooves.

• (optional) if you require a weep hole for any moisture, drill or use a soldering iron to make this on the CoverPOTY at the lowest point with your POTY offset properly applied. Remember to remove the excess plastic inside and outside to allow the passage of water. 

• Slide POTY assembly into cover with reflector pushed into groove.

• With the NType socket at the top/middle, apply two small dots of super glue on the edge of the reflector adjacent to the exposed groove ends to lock the POTY to the cover.
  
  

• Print CoverReflector (0.2mm, honeycomb, 30% infill profile) then remove support material from the outer groove.

• (optional) insert silicon sealer into the groove and slide cover into place on the back of the reflector. Alternatively, apply contact adhesive before installing the cover into the POTY cover.

• (optional) seal the exposed edge of the reflector. You can use self-amalgamating tape or silicon sealer, or alternatively apply a bead of silicon around the ledge under the reflector before you insert the POTY into the cover.
  

• Remove the endcap from the Bullseye LNB and drill a 22mm hole in the centre.
  

• Print SleeveLNB (0.2mm, straight, 20% infill profile) and install inside the Bullseye LNB horn to support the POTY pipe into the horn.

• (optional) Use epoxy to lock this sleeve into place in the horn.

• Replace the endcap making sure to include the sealing gasket between the LNB body and the endcap.
  

• Print 2x CoverLNB&Mount-half (0.2mm, honeycomb, 30% infill profile) and remove the support material from the inner section.

• Install 3mm thick soft rubber gasket on one half of the cover extending to fill all the contacting edges between the two halves only

• Install the modified bullseye LNB with drilled endcap onto the POTY pipe

• Install one half of the CoverLNB&Mount onto the CoverReflector flange and around the LNB. Align the LNB so that the desired skew is at the top elevation of the POTY before the second half is fitted.

• Now fit the other CoverLNB&Mount cover so that it encapsulates the POTY/LNB assembly and install the S/S screw sets in each of the 8 holes. (Screw + serrated washer one side, flat washer + nyloc nut the other side). This cover will fit over the flange on the CoverReflector, holding it firmly once the two lower screws are tightened.

• Do the nuts on CoverLNB&Mount covers over the LNB up loosely so that the LNB can still be rotated within the covers to account for the skew offset adjustment.

• Hold the back of the LNB and rotate to the required skew, then tighten the remaining 6x nyloc nuts. Do not over tighten or this could break the printed covers. This action will lock the CoverReflector flange onto this LNB&Mount cover.

Before you tighten the screws make sure to apply the correct tilt on the LNB and the POTY offset.

At this point the POTY and LNB should be fully encapsulated within covers and should remain water tight but the user should check to ensure that all water-entry points are properly sealed as required.