Search found 84 matches
- September 5th, 2011, 10:23 am
- Forum: Lever Espresso Machines
- Replies: 25
- Views: 43507
Robo-Pavoni; learning to make espresso machine from scratch
Not 100% sure what year--I got rid of the body some time ago. But I've drilled two of them so far, both pre-millenium, and not seen any important differences. -raj
- September 4th, 2011, 6:36 pm
- Forum: Lever Espresso Machines
- Replies: 40
- Views: 15910
Positive pressure, PID Pavoni: world domination begins
I recently started to think about this question, so I chopped the top off my machine and went open boiler. It works fine, but takes some fiddling of the lever to get the chamber full. If you want less than 10 seconds of pre-infusion, it wont work. But with the longer pre-infusion, it does seem to wo...
- August 21st, 2008, 10:59 pm
- Forum: Lever Espresso Machines
- Replies: 25
- Views: 43507
Robo-Pavoni; learning to make espresso machine from scratch
Grounds may get in there, but I've never had a problem with that. 10 bar keeps the tube clear. The volume in the gauge fittings is filled with water, so very little displacement is needed in the tube. r
- August 18th, 2008, 9:17 pm
- Forum: Lever Espresso Machines
- Replies: 25
- Views: 43507
Robo-Pavoni; learning to make espresso machine from scratch
A quick reply: use two drills, one superfine from the bottom of the head, and the second 0.125 from the side. Hope they meet and drill carefully while paying attention to desired depth. The superfine hole should be outside the piston shroud, but inside the screen and o-ring. Once you see daylight, e...
- August 15th, 2008, 5:41 pm
- Forum: Lever Espresso Machines
- Replies: 25
- Views: 43507
Robo-Pavoni; learning to make espresso machine from scratch
Thanks, guys. You'll notice that my "chaff collector" is just an asparagus steamer basket--I only build when I can't buy what I want
- August 15th, 2008, 1:46 pm
- Forum: Lever Espresso Machines
- Replies: 3480
- Views: 553141
Lever Espresso Machine Gallery
{image} The Robo-Pavoni. Details at "Robo-Pavoni; learning to make espresso machine from scratch"
- August 15th, 2008, 1:40 pm
- Forum: Lever Espresso Machines
- Replies: 25
- Views: 43507
Robo-Pavoni; learning to make espresso machine from scratch
{image} Here is the complete kit, fully working and tested. From the right: 1. Robo-Pavoni. This is a pavoni head bolted to a home-made copper boiler and brazed-steel frame. The head has been drilled to show piston pressure (dial). The boiler is insulated (kinda ugly, but not to me) with fiberglass ...
- August 15th, 2008, 1:36 pm
- Forum: Grinders
- Replies: 56
- Views: 24353
Home-made grinder
{image} Here is the complete kit, fully working and tested. From the right: 1. Robo-Pavoni. This is a pavoni head bolted to a home-made copper boiler and brazed-steel frame. The head has been drilled to show piston pressure (dial). The boiler is insulated (kinda ugly, but not to me) with fiberglass ...
- August 15th, 2008, 12:31 pm
- Forum: Grinders
- Replies: 56
- Views: 24353
Home-made grinder
Arriflex: yes (belatedly), my screw is 250um/turn and works well. I would think 500um/turn would do as well. I never make adjustments less than 1/4 turn because its not necessary. raj
- August 28th, 2007, 10:09 am
- Forum: Grinders
- Replies: 12
- Views: 2927
Zassenhaus Alignment and Lubrication
How about loosening the screws, tightening the adjustment mechanism until the burrs are firmly pressed together, and then tightening the screws. raj