Hello, I have a model of a part from my son's school, We are trying to create a OD roughing tool path by using the model but we keep getting a error message, We are using Mastercam X7 home learning software, Any body want to take a crack at creating a OD roughing tool path or fix the model so Mastercam can create a tool path? Joel

Another note, They had Mastercam V9 when I started working there but all the computers broke (really old) most of us in the shop want mastercam design but I think they are leaning toward EZ mill but we are still pushing for Mastercam so right now we have no cadcam system in the shop

I haven't tried any of those suggestions, I am not familiar with those options, Let me explain what I am trying to do and maybe you will have a better idea than mine. I use a Mazak quick turn 250 mill/turn with no Y axis. I machine liquid pumping rings that look like acme threads, The current shop people us a hocus pocus math formula to determine the amount of spindle rotation based on the drawing information. I need to know the amount of spindle rotation exactly to make the pumping ring viens the right thickness per the print. I thought if I draw up the correct diameter from the print and make a surface from that I could project the cutting path onto the surface and then go to the front view and measure the angle from the start to the end, then I could put that number in mazatrol for the program. This ring is 10 starts and at a angle of 15 degrees, so 360/10=36 degrees so I have a tool path starting every 36 degrees but I need to figure out how far the spindle needs to rotate. the viens are 1 inch deep so my .25 endmill starts at -.15 in front of the part and travels .15 past the part for a total length in Z of 1.300 inches. but know I need the spindle rotation amount for that length of travel. Any ideas on a simple way to figure this out? And no they refuse to use Mastercam on the Mazak I already tried Joel

Hello, I am using Mastercam X7 home learning, I created a round surface 1.3 inches wide and at a diameter of 3.71 inches, I then created a line from the top quadrant that is at 15 degrees, I then tried to project the line onto the surface assuming it would go from 0 to 1.3 wrapping around the surface but it doesn't, the line goes to the 90 degree angle and goes back to the front, How can I make the line start at 0 and project onto the surface ending up at the 1.3 depth? Thank you Joel

The money is there, I suggested a coolant fed drill and a carbide one, he said he would get one of each and never did. He finally came in with his carbide drill and it work but that was after a week. He said I have 2 back up drills invade that one breaks so I looked at them and they are too short, I hope my current drill lasts 14 more parts.

I have said WTF alot.

I have been searching the internet for information on this but i have had no luck, seems most people change the g90 or g91 but we dont do that. back to searching

I suggested we use a carbide drill when we started this project but we used a cobalt drill, just a standard one, and we waisted a week and several feet of material until they bought the right drill. once we had the right drill it worked perfect from the first part and it still works now. i think the boos was under a lot of pressure and decided to get the right drill???

They have to adjust the machines for taper on the part, We machine alot of Titanium and they dont like us to go to Mastercam to fix programs. They want us to fix it on the machines.

We got a carbide drill and it is working perfect, thank you for all your input

My company likes to mix absolute and incremental Cnc programming, does any one know of a web page or iPhone app that will let me plug in some numbers and get the result? For example we have two lines at 90 deg and I need to put say a .250 radius on the intersection. Or does anyone have a good idea to do this ?

I suggested carbide but it falls on deaf ears. I cant buy the tooling so i am stuck, We are using a cobalt drill 19/64 and it walked off center last night, scrapped a few parts. The whole drill mounting system we have needs to be redone as i cant say anything is straight! Thank you all for your help. Joel

Thank you for the replies

We are doing .05 pecks with full retraction to get coolant on the drill

Sorry, it's a n drill .302 dia cobalt