Need Help to find micro milling service shop

[looking9]

I am working with microfluidic system for my scientific research and I need a metal master mold. The pattern of the master is like a stamp which has a couple of tiny bars on top a base. The width of the bar is 0.1mm and height is 0.5mm. I am thinking to buy a desktop CNC milling system but I am debating because CNC is not my major. Another option for me is to find a shop to do this. Anyone can help me to find a shop which has micro milling capability and also is willing to do small volume samples? I have different patterns to mill but for each pattern I just need very few samples. I am located in Chicago area. I am will to accept any reasonable price.

Thanks a lot.

[zcases]

what is the spacing between the bars? Can you post a sketch with tolerances and material requirements?

Thanks
Scott

[looking9]

The material could be any metal which could be easily milled, like: stainless steel, aluminum, copper or brass. The tolerance is like ±10% of the dimension in my drawings. I also attached my drawing.

Thanks a lot.

[pixburghenat]

Originally Posted by looking9 The material could be any metal which could be easily milled, like: stainless steel, aluminum, copper or brass. The tolerance is like ±10% of the dimension in my drawings. I also attached my drawing. Thanks a lot.

Stick with the brass.

Is there a research machine shop at your university?
Or one at a nearby University that you could use?

I'm only asking because this is the type of work I've done with a medical school research machine shop and now with the engineering school machine shop. Sorry, I can't quote on outside work and we don't have a high speed spindle anyway.

...again, stick with the brass.


Scott

I can create a Solidworks model for you, no cost. version 2007.

[pixburghenat]

I have a Solidworks model. I need to add the corner radius.

here's a jpg.


Scott

[looking9]

Thanks, Scott
I really appreciate your help on making me a Solidworks model. I will take your advice and stick with brass. And if you don’t mind, would you please tell me why brass is my first choice?

A high speed spindle won't be a problem for me or at least I don’t think it is the crucial for my sample because in my mind, a high speed spindle can just make the mold better and a normal spindle can make it. I don’t expect to use the same machines listed in the literature. I just want the mold to be made.

Pang

[mactec54]

Hi looking9

what are the corner Radiuses needed & it depends what you want to do with it
as to what material is needed

[zcases]

你是中国人吗？ 我看了你的名字。 我只好奇了。。。。。

[pixburghenat]

Here's the models.

Scott

I have Edrawings of both also, posted below.
You'll need the viewer from solidworks.com

...and zcases said:
You are Chinese? I read your name. I just curious about the.......

:-)

[pixburghenat]

edrawings and models.

You'll need edrawings (free) from solidworks


Scott

[pixburghenat]

Pang,

If you are flexible with the sizes of the inside radius, it will be less costly to make. Say a inside radius of .25mm or .30mm would be a bit easier or even bigger.


Scott

[looking9]

Yes, I'm Chinese.Good eyes. 是的，我是中国人。你的眼力不错。