The core is removed usually through the core prints. The prints are the areas where the core is supported. As far a thin sections, I determine how thick or thin all areas are during the designing and making of the pattern and core box. Sometimes some modifications need to be made. Its not always perfect the first go around.
@@strittmatterironworks I am a CAD designer, technical engineer grad. I understand , so there is a space for the sand to exit the enclosed casting? EDIT I see, the casting is hollow through the centre lines. My mistake. Thanks for the video. Trying to learn about DFMA as much as possible Looking to get my own 3d print and cast
It worked out in the end! Puddles on the floor are never a good thing.
It was getting late and I wasn't paying attention. The pins bound up on one side and the cope was about eighth inch from setting on the drag.
May be obvious, but then there is a sand core inside the part?
You don't end up with thin edge sections?
I am curious if you have a finished engine , yet . I would love to hear it run and see it fly . 😊
Unfortunately not yet. 😔
I'll be machining the connecting rod and piston soon so there will be a video or two in July.
Whats the sand core for? You just dump a cylinder roll if sand inside your cast??
Its for making hollow sections rather than a solid part. Less machining and less chance of shrinkage as aluminum solidifies.
@@strittmatterironworks thanks
May be obvious, but then there is a sand core inside the part?
You don't end up with thin edge sections?
The core is removed usually through the core prints. The prints are the areas where the core is supported. As far a thin sections, I determine how thick or thin all areas are during the designing and making of the pattern and core box. Sometimes some modifications need to be made. Its not always perfect the first go around.
@@strittmatterironworks I am a CAD designer, technical engineer grad. I understand , so there is a space for the sand to exit the enclosed casting?
EDIT
I see, the casting is hollow through the centre lines. My mistake.
Thanks for the video. Trying to learn about DFMA as much as possible
Looking to get my own 3d print and cast
отливка целесообразна при массовом производстве,
для производства единичной копии проще выфрезеровать из единого куска
Clamp your flasks together
It's aluminum there is no need to. I does not push the cope up like copper or bronzes will.
What kind of binder did you use for the core?
It's my regular greensand mix. Seemed to work good and out of 5 castings none of them failed.