I recently had a free day with nothing I really "had" to do so I disassembled the rifle to inspect the parts for wear. Everything looked fine except for some small fatigue cracks on the bolt. It hadn`t failed yet but would have have eventually. I filled the cracks with glue and that should suffice for now but eventually it will need to be replaced. This is not something I had anticipated but it makes sense. I spent the rest of the day modeling the rifle in CAD. I`d been meaning to do this for a while now but never had enough time.
Here are some images of the solid model
The rifle is modeled completely, with the exception of the screws. 25 parts were modeled separately and then assembled to the complete rifle. Applying the proper constraints the action can be cycled in the CAD enviornment.
There was another reason for creating the model. We received a new Stereolithography machine in my lab at school. Stereolithography is a process of making 3D parts out of a liquid or powder substrate. The machine inputs CAD files and creates the part to very tight tolerances in a relatively short amount of time. SLA machines are mainly used for rapid prototyping of concepts. The resulting part is not intended to be extensivelt used or used at all. I`m not sure yet of the material properties of cured SLA fluid. I may try making a solid bolt with the SLA machine and try it in my rifle.
I may regret the following, but.....
I may be able to produce FAR bolts and other parts through SLA for potential builders. This will depend of course on the viability of using a SLA produced part in the rifle and also the cost of the fluid and ability for me to use the machine. I wouldn`t charge much. Price would depend on if I have to pay for the fluid (which isn`t cheap).
If I get more than 5 PM's, IM's, Emails, or any other inquiries regarding this I will delete the above paragraph and deny everything. Trust me, if and when I find out more about this I will start a new thread at which point you can express your interest.
If anyone wants to see a closeup of anything on the solid model I will be glad to post the image. If anyone wants the part files I can send them.
Edited by boltsniper, 25 July 2005 - 12:31 AM.