CNC Milling Machines

[Mark Smeltzer]

Does anyone have any information on CNC mills that are available for a reasonable price and not to hard to program. Thinking of using it for risers, sight window and shelf.
Thanks,
Mark

[fujimo]

ever thought of a copy router- kinda like a copy lathe- just 3 d
lots of builds and units to buy
not as quick as a cnc machine- as you have to manually run it- but still way quicker and more consistent than manually- and its still "hand made" i guess
 http://www.easycarver.com/

[fujimo]

http://wood-carver.com/unispecs.html

 http://global.rakuten.com/en/store/techno-ns/item/t-wivamac-kpb4075/?s-id=borderless_recommend_item_en

[Mark Smeltzer]

Thanks for the link, I hadn't thought of those. I have looked at CNC routers though.
Mostly just want somthing to cut out the sight window and shelf.

[fujimo]

the easy carver link- looks like a nice easy build for a man of your skills.
 i see plans only cost about $50.

looks like it might be ideal for sight windows and even rough shaping of risers.
then when you have it built i can send you a rifle stock that i need duplicating   :D

[Mark Smeltzer]

YYou just gave me an idea! Thanks man!

[Mark Smeltzer]

I think Ill just give my router a try with a guide jig before i get too far along another path.

[Mad Max]

If you are going to make the same riser all the time you could get one of the duplicators.
I like to do everything by hand

Mark this is how I do it

First I layout my lines
     

I use my pattern sander with a piece of pylwood to get up above the rub coller
     

Then I sand to the line all I can get with the 3" diameter sander.
     

    http://www.bursforcarving.com/index.html    
the one on the right I use first
1st rasp click on Rasp Type burs  (FGR5BTN) This bur really cuts good!
2nd bur click on 1/4" Shank burs (BULLNOSE (RADIUS CYLINDER) SC-1SC
     

I take my patter sander off and chuck up the the rasp bur on the right. I use a larger piece of plywood on top of the drill press table. with the spindel handle all the way up I raise the table up to take a 1/8" cut.
 First pass, I pull and push the riser and follow close to the shelf line
     

I raise the table up more and make more cuts and stay away from the radius. now I am at .700 thick at the arrow rest.
     

Now I use the ball nose bur 1/4"
Don't take a full depth cut on the First pass.
With a firm grip follow the shelf line, go easy
     
I still have some hand rasping to do to finish off and relieve so the arrow only touches on one place on the site window
     

[Mad Max]

I had this tool when I was doing machine work so I use it to 45 the shelf
 

[mikkekeswick]

Umm...interesting stuff. Thanks for sharing that. I've just started messing about with burrs and I've been scratching my head as to how to utilise them fully.

[Mad Max]

Your x and Y are your arms and z is cranking the table up

   

[Mark Smeltzer]

Nice work, that is somewhere along the lines of where I'm heading I think. Thanks for sharing that!!
That radius of the shelf to the sight window is a tough area to get perfect.