Chris Snow
Member
- Messages
- 188
- Location
- Nottingham
So... I have built and modified a number CNC machines and the time has come to build a waterjet.
Please don't reply with dont do this for XYZ safety reasons etc, I'm comfortable with high pressure pneumatics and hydraulics. I know the risks and it will be done safely having done the calculations of material strengths of critical parts etc.
Has anybody here built anything along these lines? There's a few youtube clips of people starting off with pressure washers but that's not enough pressure for my plans, I'm aiming for around 1000 bar, otherwise the costs of garnet will be prohibitive.
The pump is the critical part, easy enough to get cheap-ish air-hydraulic intensifier pump to get to to this sort of pressure, but most are not suitable for water, and it would require a big compressor...
So that brings me to building something like a hydraulic-water intensifier myself, the seals are what I'm struggling to find. really need a ram seal with around 10mm diameter and 1000bar rated.
Another option is something like a large ball screw to produce around 1T of force, possibly easier than hydraulics.
Any thoughts?
Please don't reply with dont do this for XYZ safety reasons etc, I'm comfortable with high pressure pneumatics and hydraulics. I know the risks and it will be done safely having done the calculations of material strengths of critical parts etc.
Has anybody here built anything along these lines? There's a few youtube clips of people starting off with pressure washers but that's not enough pressure for my plans, I'm aiming for around 1000 bar, otherwise the costs of garnet will be prohibitive.
The pump is the critical part, easy enough to get cheap-ish air-hydraulic intensifier pump to get to to this sort of pressure, but most are not suitable for water, and it would require a big compressor...
So that brings me to building something like a hydraulic-water intensifier myself, the seals are what I'm struggling to find. really need a ram seal with around 10mm diameter and 1000bar rated.
Another option is something like a large ball screw to produce around 1T of force, possibly easier than hydraulics.
Any thoughts?