Inquire In Molding

[ahmadhassan]

I apologize if this place was not intended for this review
I wanted to do work such as the Molding within the image attached

I want to inquire about a few things:

** If I are I'm going to work on the wood, what is the type of wood used and also if iron what type of iron?

** The most important thing is that I will use the Drill, what are the kinds of bites will be used to do so and sizes?

For example, I want the weight of size 1 (100g) What type and size bites appropriate!
 

[cadman]

First of all, if you want to make the mold that you pictured, you cannot do that with a drill press. It has to be done on a milling machine with a round end mill. The reason being is you  have an  elongated slot and you must cut this out, which you cannot do with a drill press. Also you have to make sure that the cavities are aligned  and pinned. If you don't pin them then the mold halves will have to have a hinge.

 

Wood is not a good choice, as It will start burning from the hot lead, and eventually the cavities will crack and get charred from the heat.

 

Most molds are cut from aluminum. Reason being, aluminum is easier on the tooling, it cuts fast, and it dissipates heat when you pour lead.

 

As far as sizes go, unless you know what the mass weight is of the size you want, it will be trial and error. Also depends on the lead properties. Pure lead is heavier than alloyed lead.

 

This is just a start. There are many other thing involved in doing this. If you insist on doing this, you should also have a technical drawing showing sizes, depth, length and position of the cavities in the mold along with all of the dimensions, so you can duplicate accuracy.

 

You can make molds out of high temp silicone, but that is short lived as well.

 

Good Luck

[tipptruck1]

Cadman is is right. It would take a assortment of ball end mills to do the job. Before you ask. They are not cheap, or work in a drill press. Any machine shop would have no problem making that for you. That is a pretty simple design. They could also make it bigger for you. So you could have more then one cavity per size. Depending on how busy the shop was. You could have your mold in a day.

 

 

If I was you. I would work on getting a male pattern of the mold made. Then you could cast them. All it would take is some casting sand, and a box made of wood. I also think you can reuse the sand. 

[ahmadhassan]

I found this video and I think this will the purpose

[tipptruck1]

I do not know what that stuff is or cost. As cool as it is. Casting sand might be cheaper. It will also be quicker to set up a casting mold. I bet that stuff has a 4-8 hour cure time. Any way here is a link I found for prices of sand. This was with a simple google search. http://www.budgetcastingsupply.com/category-s/1824.htm