Posted Wed Jun 16, 2004, 12:00am Subject: Re: Anyone built a knock box?
I got plumber friend to source me a piece of 150mm PVC pipe + end cap, cut the pipe at an angle (10cm drop), drilled a couple of holes and then made a crossbeam of dowel covered in PVC tubing with chair leg rubbers as end pieces/shockmounts. I cover it with a small plastic bag when not in use to reduce odours.
Posted Wed Jun 16, 2004, 7:15am Subject: Re: Anyone built a knock box?
We own one of these. I am contemplating building some for friends as gifts.
It is just a small rectangular stainless pan about 2 inches deep. They drilled a hole on each side and ran a 1/2 inch threaded rod through it with a nut on each end. The 'knock bar' rubber piece is just a piece of high pressure hose cut to length with the rod through it.
The frame is a simple wooden frame a bit deeper than the pan, and the pan just sits in it...just lift out the pan to empty and clean. It has been being knocked about our counter for a couple years now.
short_black Senior Member Joined: 3 Aug 2004 Posts: 383 Location: Perth Australia Expertise: I love coffee
Espresso: La Cim Jun S1 Grinder: Mazzer Mini, Iberital Roaster: 1/4 share broken(;-() Imex
Posted Fri Aug 27, 2004, 7:44am Subject: Re: Anyone built a knock box?
I realize this topic may have been discussed almost to death, but check out the Tasmanian Oak knock box my fellow coffee geeker from work built me for my birthday!
Still haven't worked out a way to protect the bar - I was thinking of slitting a bit of PVC pipe and clipping it across the bar.
Posted Fri Aug 27, 2004, 8:07am Subject: Re: Anyone built a knock box?
Your friend does nice work short_black! If I were you I'd put some rubber around it, because a PVC pipe wouldn't absorb any of the shock. You might not dent the wood by hitting it directly, but I'd think over repeated heats you'd still have a chance of cracking it. Rubber would help ameliorate this a bit.
Posted Fri Aug 27, 2004, 8:26am Subject: Re: Anyone built a knock box?
short_black, if you look at my effort further up, you will see my bar is covered with a piece of clear hose. This cushions the knocks and keeps the wood clean. If your bar is not removable, you could slit a piece of hose so it wraps around the bar. It will look nicer than PVC pipe, too.
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