SURFACE ROUGH pocket

[HEAVY METAL]

i put a file under the mc9 folder called die cast mold. i'm trying to come up with the best way to attack this thing. trying to rough with surface rough pocket. but i want to keep the top untouched or flat so i can finish bottom after heat treat. not having a lot of luck with toolpath. maybe best to machine sections at a time with the approaite surface toolpath. if anyone has time to lok at part and shoot me some suggestion i would be greatful.

 

thanks heavy

[Ocean Lacky™]

Heavy,

 

I saw your post last week where you mentioned this part....looked at it a little, then. I'll take a little longer look at it tonight when I get home....It looks like it'll be a fun part!

[HEAVY METAL]

Yea i should learn alot about surface toolpaths once i get thru it

[wfcPain]

Boolean add a surface block

Used Surface rough contour

add the boolean surface to the check surface

I ran it thru verify it looked ok .Left the top surface untouched.

[HEAVY METAL]

thanks lacky for taking a look

[d00d]

I would squash the outer most wireframes at the botoom of the .237 radius (btw check the normal on those) create surfaces around those once trimmed and start surface rough pocket at -.001 sould give ya what ya want.

[HEAVY METAL]

create a flat surface on top is that what you are taking about pain

[HEAVY METAL]

not sure i follow you dood

[HEAVY METAL]

i got to worry about having a flat surface or leave some pads the same height so i can finish machine the opp side after roughing and ht.

[d00d]

the first shape around the boss that is smaller than the part. I presume you just need enuff flat to parralell the bottom surface on the mill after heat treat. The first radius around that feature ( I believe it was a .237 radius ) I would squash to a 0.0 construction plane, then make a box of simple surfaces in the shape of that feature to keep your cutter off the (created) flat surface.

[wfcPain]

quote:

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create a flat surface on top is that what you are taking about pain

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Yes i created a solid block then boolean add. I havent fine tune it,Ignore the red lol.

[HEAVY METAL]

i think i might need more surface area to clamp i got to finish the whole profile on the backside. i dont no how else to get a hold of it. the sides on top side got a draft angle.

[HEAVY METAL]

dont have solids option

that sucks

[HEAVY METAL]

could i create 4 small surfaces spaced out to set on to finish mill opp side after ht and still use surface rough pocket and keep tool path off these surfaces

[HEAVY METAL]

it would be grate to rough this whole thing out in one shot. already got backside roughed and using the 3/4-10 taps and a two locating holes to mount to fixture plate and toe-clamp to table to do this side

[wfcPain]

edit above

[Müřlıń®]

I would radiac and grind to length, 3 or 4 tubes to fit down into the boses and bolt it down to a plate to machine the back.

 

then clamp it up in the vice to finish the top. You would be able to run ndicator under the lip to check for flatness in vice.

 

5/16" bolts or even 1/4-20 would be plenty strong to hold it down.

 

Disc pad off the excess where the bolt heads are...

[HEAVY METAL]

that is what i.m after pain is there another way around i have tried a few things but cant get cuttter to stay off top in surface pocket rough

[HEAVY METAL]

murlin you talking about setting the minimum depth below the top surface?

[d00d]

Heavy, uploaded die cast moldd00d.mc9 to mc9 on ftp.

I just modeled the top surface flat and created side surfaces. Do a surface rough pocket with this geo. before heat treat. Pick all surfaces as drive surfaces and start your minimum pass at -0.001 and then to whatever depth you wish. I think this is what you are after as far as an end result.

[Ocean Lacky™]

Heavy,

 

Quick question......what is you stock size?

[Ocean Lacky™]

Heavy,

 

Check out Die Cast Mold-Ocean Lacky.MC9 on the FTP site.

[pap]

quote

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IF YOU DON'T HAVE THE TIME TO DO IT RIGHT HOW ARE YOU GOING TO HAVE THE TIME TO DO IT OVER

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something i've started seeing come out of managers as oflate is this sentiment ...

"DOING IT RIGHT IS NO EXCUSE FOR MISSING THE DEADLINE."

 

ay rebuttle on this one ?

[HEAVY METAL]

Thanks lacky and dood ill take a look

[Ocean Lacky™]

Heavy,

 

I added the three surfaces to give you some small flat areas to locate on after heat treating. Move them up or down to suit yur needs.