Now, a few people might want to have a knock box of their own accord while also having the perfect compatibility to their coffee makers. And, if there is one thing that would stop you from banging the filter on the sink or dustbin, then it would surely be a knock box.
Sometimes, a knock box is regarded as a “bash bin”, slam piece, coffee column or bang bang. And generally, a knock box is used to for storing left out grounds or spent puck.
And so here it is your “Espresso Knock Box DIY”.
Espresso Knock Box Diy [ Step by Step ]
Now, as that said, you can choose any type of container to go with like the wooden or PVC. But, do keep in mind that the wall thickness of it should be within 0.5 to 0.75 inches [ More thickness results to extra weight, so be sure to keep in mind.]
What You’ll Require
- A container of sorts of your choice.
- Copper pipe required about 5-inch length
- 5-inch copper pipe caps
- Two 0.5-inch rubber grommets
- Clear reinforced tubing
- For transferring cut lines, index card is required.
- A drill
- Sand paper
- A coping saw
- A crosscut saw (you can use chop saw, if you want)
- Hacksaw or Dremel
- File, rounded ones
- Clamp (can be quick clamp or pipe ones)
- 1-inch bit. Spade bit or paddle ones; depends on the outward diameter of inner ring grommets.
Now, as the tools been taken care of, let’s proceed to the action.
- Step – 1: Take Appropriate Measurements and Cut
If you choose your knock box to catch drips and fit to your espresso, then measure the space between the thermal plat and the portafilter. It should give you an idea of the size of your knock box.
But, if you choose your knock box to just store puck or spent grounds, then cut the container according to your requirements. It will be an excellent choice to cut the tunnel in a way that it fits into the machine and doesn’t require you to worry much.
- Step – 2: Drill for the Holes
Please, do practice drilling holes on a cupboard or scrap piece. Hold the scrap with clamp to keep it from moving. Wear mouth guard and glasses and drill slowly so that you don’t chip away too much or loose edge over it.
Take 1 & ⅜ inches down from top to mark it out for drilling on both sides. If you plan to fit it under portafilter measure out the height for the knock box so it can clear the spouts.
- Step – 3: Cut and Shape the Mouth
Draw and measure an arc for knock box’s mouth. Take 4.25 inches across the arc of the mouth and 1.75 inches down. Cope down to cut or use jigsaw to cut. Finally, smooth out the edges with sandpaper and file.
- Step – 4: Smooth out with File and Sandpaper
As you might see after the drilling and coping, the mouth and the holes are on the rough side. Use sandpaper and rounded file to smooth the holes and measure to keep the size of the hole in check. You can use the grommets to see if it fits the hole.
- Step – 5: Place the Grommets
Start inserting the rubber grommets onto the holes. It should fit, if measurements were maintained from the start.
- Step – 6: Place the Copper Pipes
Put the copper pipe through the holes. You can cut the pipes on both end leaving enough room for putting caps.
- Step – 7: Place the Caps and Apply Final Touches
Size out the clear tubing so that it fits within the rubber grommets. Put the pipe through the tubing and place the caps. Use sandpaper to apply final touch as you see fit. And there you have it, Wala!
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I’m Louis Huynh & I’m the guy behind COFFEE MINISTER. In my blog, I share my expertise and help you with your coffee-struggles. I can read coffee like the back of my hand and brew it like it is in coffee shops.