Chassis Build

Hi Jay. Nice looking parts!

Kevin
 
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Thanks Kevin!

Two more videos capture the majority of the machining process. Sorry for the dead spot in video 2 as I got called away and am too lazy to edit it out.

 
Jay, that is some very impressive design, setup and machining. Bob
 
Thanks Bob!

Rats my lathe delivery was put off unit tomorrow so I had some time to run another part. This is the hand grip mount. The grip is an AR-15 type.

This was a fun part to do. Just modeling the part challenged my feeble knowledge of Solidworks and then came the CAM. I tried some new 3D strategies and it worked out well.

GripMountCAD.png GripMountCAM.png

This part took 5 setups, 11 tools and 31 tool paths.

GripMount01.png GripMount02.png GripMount03.png GripMount04.png GripMount05.png GripMount06.png GripMount07.png GripMount08.png
 
Hello. The recoil pad how did you go about modeling it/measuring to get the profile so perfect ?


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Looks good Jay! I noticed that you were playing with the 4th axis in another post, have thought about using it on some of these parts?

Kevin
 
Sendit said:
Hello. The recoil pad how did you go about modeling it/measuring to get the profile so perfect ?


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Click to expand...

I traced the base of the recoil pad, scanned it to a bitmap file and then imported it into Solidworks. The bitmap lines on one half of the profile are traced with a spline line, mirrored and then a scale is applied to get it to the proper size. The 3D model is a simplified version of the actual part. I just need the basic dimensions for sizing of the other parts. The same base profile for the but pad is used to create the profile for the adjustable mounting plate.

ButPadSplines.png
 
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09kevin said:
Looks good Jay! I noticed that you were playing with the 4th axis in another post, have thought about using it on some of these parts?

Kevin
Click to expand...

The barrel guard and the mount for the barrel will have operations on the 4th axis. Mostly indexing moves for 2D tool paths. I still need to finish the stepper motor mount for my rotary table and get the post processor modified before I can try any 4th axis work. I have figured out how to do the CAM so that part of the puzzle is good to go.
 
Neat stuff, I'm still learning how to fixture stuff properly so it is extra interesting to me.

Turns out I can't indicate to save my life yet >.>
 
I made a little more progress. I have started on the maim part of the stock.

StockCAD01.png

The first three side are done in a vise. The front, top and left sides. The first was to drill the holes in the front and then run the top.

Tool paths for the top.
StockCAD02.png

Top completed.
Stock01.png

Next was the left side.
StockCAD03.png

Left side ops completed.
Stock04.png
 
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