Water Cutting

[widow_twanky]

Water Cutting

Out of interest what do you use as a coolant?

Never used coolant which is probably why I end up sharpening my drills every five minutes.

Andy

[Kenny]

Water Cutting

On engineering machines (lathes, radial drills, mills) you use a coolant what is a mix of soluble oil and water (nick name milky), you can get a 25L drum for around 50 pounds and mixes with water at 10 parts water to 1 part oil.

this is good for automated machines has it doesnt stick to tubing, where as if you used neat oil it would stick to the tubing from the coolant pump and start to block the pipes after a while

when using a cordless drill or pillar drill use a bit of 3 in 1 oil (WD40 etc) keeps the tip of the drill cool and acts has a lubicant

[terry]

Water Cutting

I have now got my aliminium plate, a lump of 6082T6 15mm thick, It will bandsaw.jigsaw and cut with a hole cutter but the edge is far from smooth and straight, I have got some details on local watercutters etc and cad pics drawn up and will let u all know cost and what happens.

Terry.

[supernova]

Water Cutting

Just got the weapon and armour plasma cut out of Hardox 400 3.2mm plate. paid 250 inc material and delivery Company called ABBA Commercials. See profile pic Tolerence not amazing but perfect for what i need! (that was 33kg of hardox)

(Message edited by supernova on September 12, 200

[geeza]

Water Cutting

That looks like a flipper arm, looks good as well

[terry]

Water Cutting

Thats what I thought, Im hoping... well have been thinking to make my flipper arm similar but maybe in 6082t6 ally.

[RogueTwoRobots]

Water Cutting

If the CAD that was on Surens profile before that picture was anything to go by, it looked like it was gonna be a 4-bar-lifter pneumatic style
High speed coolness

[supernova]

Water Cutting

Yup, Full pressure 4 bar lifter, 600mm vertical lift using two hydraulic rams, with i think 60mm dia pistons each. 1 T port ball to actuate rams. Designed with the help of woody, if it goes wrong I blame him
Body and arms 3.2mm hardox 450. Should be good if i ever finish it!

Suren