Aluminum 7075 15 and 20 mm pricing

[Clive S]

Hi guys,


Can you guys give me advice on 15 and 20mm toolingplate 7075 pricing?

Would 11 euros per kilo be about right?

I am about to order about 20 kg worth
of tooling plate for z axis in 8 pieces

Grtz. Bert.



Verstuurd vanaf mijn SM-A320FL met Tapatalk

Where are you using the 15mm plate? Personally I use 20mm ecocast as it is generally a much better tolerance.
https://www.aluminiumwarehouse.co.uk...BoCTnwQAvD_BwE

[driftspin]

Where are you using the 15mm plate? Personally I use 20mm ecocast as it is generally a much better tolerance.
https://www.aluminiumwarehouse.co.uk...BoCTnwQAvD_BwE

Dear Clive S,

15mm is for the plates that wrap around the gantry.

Since the Hiwin carriages are bolted very close to each other, not much deflexion is expected from these plates.

The vertical bearings are placed just between the horizontal carriages so minimal forces across a span, in contrast to the moving 20mm Z plate.


To gain room for the Z ballscrew i need 15mm extra height over 30mm rail and carriages so there will be 15mm plate mounting surface + 2 44x15 mm strips.
I planned the strips on the gantry plate not the z axis

20mm is used for the vertical moving plate.
Should i bold the 44x15 mm strip here instead? More rigid?

I tried to read up on different types of alu.

Modulus on 7075 looked much better.
I am not gonna weld it up... Than 6061 6083 would be better right?

I am not sure someting like "ecocast" is available in The Netherlands. Would it be worth the shipping to NL?

Isnt 7075 flat enough? Or just far to expensive?

When one orders Toolingplate 7075... isnt the surface milled by default? like with the plastic foil on 1 side?

Don't know my way around all the DIN and EN codes..



Grtz. Bert

Verstuurd vanaf mijn SM-A320FL met Tapatalk

[Clive S]

tried to read up on different types of alu.

Modulus on 7075 looked much better.
I am not gonna weld it up... Than 6061 6083 would be better right?
I am not sure someting like "ecocast" is available in The Netherlands. Would it be worth the shipping to NL?
Isnt 7075 flat enough? Or just far to expensive?
When one orders Toolingplate 7075... isnt the surface milled by default? like with the plastic foil on 1 side?
Don't know my way around all the DIN and EN codes..

I can't help with the above there are better people on here that will hopefully chime in. I am not an engineer

I have used (like a lot of people) 6082 and Ecocast for the Z axis with the Z axis plates being rebated for the ball nut.

p.s. I would keep all the questions in your build log to keep them in one place as its easier to keep track of what is going one.