I just ran with the OP's idea and built this hop spider. I didn't take the time to read all the posts and I was looking for drilling advice since stainless is a pain without the right tools, but I managed. I thought I would throw in some directions to any new homebrewer like me who is looking for ways to do this with cheap tools at home. Apologies to anyone who did this previously. It's nice seeing recent posts about it. All my materials and tools were purchased at Menards. I did this in 30 minutes.
Materials:
1. SS Sink disposal cover
2. Qty 3 ~ 3/8" X 8" (16 Coarse Thread) SS Lag Bolts
3. Qty 6 ~ 3/8" 16 coarse thread SS hex nuts
4. Fine meshed paint strainer bag
5. 1"-4" worm drive SS hose clamp
Tools:
1. Variable speed hand drill, preferably a corded one. Mine declares to reach 2700 rpm. 5.5 amp motor.
2. Hole punch set
3. Your preferred hammering device. Avoid using your annoying neighbors head.
4. 3/8" TITANIUM drill bit
5. Spare wood blocks
6. Trigger clamps
7. Seamstress measuring tape
8. Masking tape
9. Pen
10. WD-40
Instructions:
1. Tape around the web of the drain where you'll be drilling the holes.
2. Secure end of measuring tape at an arbitrary point. This is your zero.
3. Measure circumference of the drain cover web. Divide that by three, make a mark at every one of those thirds. Obviously the "zero" gets a mark.
4. Eyeball a pen mark in the orthogonal direction at the marks across the circumference. You now have crosshairs for your punch and drill.
5. Clamp the drain with spare wood, making sure nothing moves. Reference my pictures.
6. Punch at those marks. Start slow to get established then beat the hell out of it. You should see a small dimple.
7. I skipped pilot holes because "beat the hell out of it."
8. With titanium bit in your drill and the piece "lubed" with wd-40, start slowly on each dimple and then ramp up until you break through the piece. It will take the full speed of your drill. Repeat.
9. Clean up the piece.
10. Thread a nut on each lag bolt, and insert each bolt through a hole. Nut the other side and tighten.
11. Work mesh bag through your clamp and drain cover and tighten on the web of the drain cover.
12. Grab a homebrew because you're done doofus.
Cheers!
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