Looking to have 2 parts sand casted in aluminum. Pretty simple parts and no tight tolerances. Anyone ever had any parts cast using sand molds? Just trying to get an idea if we are talking hundreds of dollars or thousands? I can provide the template (made out of wood). This is what the part will look like with dimensions. All dimensions are in inches.

Thanks
Jim

The original berk pumps were sand cast i didnt think that was done anymore exept for perhaps decorative apps.if that thing needs to be compact light and strong doesnt look like it would not be hard to make from the aluminum alloy of your choice

Why not just have them machined? It's been a long time since I have drawn on a board but I think you may want to change out your dimension lay out. Not trying to be a Weenie but it may be difficult to reproduce with that lay out. Need to work from a datum point..

For two parts -just machine them .

What he said - even if you were making enough to justify the casting you will still have to do some machining on them. At the very least the hole, recess and the 2 faces. Is there going to be an o-ring groove on either face? That recess would be hard to machine as the corners at the bottom are not square. Can there be a radius at the bottom?

Just begin constructive here, but as J-Bonz says you will need to add a little to the drawing. I think I know what you mean and if the ends were square what you have would work. It's a little ambiguous as drawn. I am far from an expert but I think you could get away with adding a center-line distance on the 2 origins of the radius/diameters. And reference which face has the dimensions.

Thanks everyone for the feedback

I was looking at casting as a comparison to machining. 6061 in block form will cost $1200 as it is along with probably another $600 for machining so I figured there is no way it would cost that much to cast. I won't need any final machining as I can do the final cleanup on my own.

I would never expect anyone to make the part from that drawing. It was just provided to give people an idea of what the part looks like. I do all my designs in 3D CAD and would provide the shop with a 3D model.

No o-ring and the counterbore and the through hole would be clearance holes. No tight tolerances required. Fillet's at the bottom of the counterbore would be fine

Try practicalmachinist.com

When I was in high school we had a metal shop class with sand casting ability. I could have done this no problem. Any high schools in your area do this? Could probably get it done for cost of aluminum and a donation....

No way on material cost. $1200 is way out of line on 6061... As well as the $600 per part cost. I'd be happy to machine these for you and can assure you pricing should be well shy unless I'm missing some hidden features. I can also cut on 5-axis water jet if edge quality is acceptable