HI, there, I get a job, 1.6mm dia,by 7.0mm long with 1.0mm hole 6.5mm deep, at the end , there is a 0.16mm through hole on center. material is INVAR 36. any advice on tooling, rpm and feed? or what kind of method suitable to this job? thanks in advance Eric

thank you all for the inputs. finally, I got it out. I tapped around the holder with a brass bar. then repeated pressing release button, it worked. I did some experiment today. looked that WD-40 make it worse. more easily get stuck. rapid tap oil worked best. thanks again Eric

Scott, you are right, I climb cut with slitting saw for slot. the saw is 4.5" diameter with 3/32" face, slot depth is 1.47", one cut at 300 rpm feed 4.1 IPM on Al t6061. seldom use slitting saw, not sure the RPM or FEED was properly set. but sound scared. can anyone please point me the right direction? thanks very much Eric

Hi there, can anyone please tell me how to release a tool stuck in spindle? our machine is HAAS VF2, after 1 hour running with coolant on, the tool was just stuck in the spindle. in MDI mode, I could not release the tool while I pressd the tool release button, just heard air puffing. I checked the air pressure was 95 psi. it was good. thanks very much Eric

HI, THERE, PLEASE POINT ME DIRECTION ON RPM AND FEED ON SLITTING CUT. THE SAW IS 2.75" DIA, 0.02" THICK, 72 TEETH, 1" BORE. THE PART IS A 0.5mm WIDE AND 9mm DEEP,32mm LONG SLOT, SS304 MATERIAL. FIRST TIME USE SLITTING SAW, A LITTLE BIT SCARED ABOUT SHATTERING. THANKS VERY MUCH ERIC

HI, thanks for all inputs. this is a prototype job. only one piece, after may be get more. drilling on solid SST bar is good. short drill to 1.5" then long drill to 5.52", rpm 530.feed 1.8 peck 0.05" thanks again. Eric

HI, the problems I met are: 1. the terrible noise, looks like the drill will break at next peck,not matter at rpm 500or 1000, 2. drill worn too fast 3. chips are stick inside rather than come out can you point me the proper rpm, feed and peck? thanks very much Eric

Hi, Cad-Camr you are right, the drill edge worn very fast. I use the short one rpm 1100, feed 2.2, peck 0.05" to 1.5" deep, then change to the long one, rpm 1100,feed 1.8, peck 0.02". looks like every 0.2", I need grind the drill. is the rpm too fast? thanks Eric

HI, there, I have a collet job.the raw material is a SST 304 tube with OD 0.315" and ID 0.157", total lenght is 6", requirment is 5mm hole with depth of 5.5", can you give me advice on the rpm and feed? I have a HHS 5.0mm 6" flute and 2" flute drills. HAAS VF2 center. thanks Eric

Hi,Dave, we use 3M Scotch indor carpet tape CT1030, which is very strong double side tape. Eric

Hi there, how do you guys put a rotary table on HAAS VF2? do you use a portable crane? can you please give me the seller' information? thanks Eric

Hi,Fred, how fast can your machins shindle go? thanks Eric

Hi,there, I am macining a PET-P plastice part on a VMC,profile size is 193x50mm, there is pocket inside, 162.5x32mm depth of 37mm. my question is that after machining the pocket the profile dimension changed to 193.28 at the top position,50mm changed to 49.82, how to control them. thanks very mcuh Eric

HI,GUYS, THANKS FOR YOUR INPUTS. ADD COOLANT,( LOOKS A9 IS BETTER), AFTER PECK DRILING, ADDING A DIRECT DRILLING(G81,RMP3000,F20. P0.2),THE HOLES ARE GOOD. THANKS FOR YOUR HELP. ERIC

HI,programinator, peck 0.03"

hi,htm01 there are 12 holes on 2 lines, I add coolant on, the first is good, the second line still are not good, I can not figure out why? thanks for help eric

Hi,there, 2.35mm dia, 20mm deep hole on plastic(PET-P). First,I use 2.30mm solid carbid drill goes to 9.5mm, then use 2.35mm solid carbid drill peck to 20mm, rpm 3037 feed 10.5in/m, the holes I measured are not straight, off 0.05mm,I did not use coolant,is this a problem?I notice the drill bit very hot. thanks eric

Hi,Code_Breaker, could you please upload the files when collect them all? I thought there are lots guys like want to learn those advanced stuff. thanks in advance Eric

thanks for inputs. machine isHAAS VF2, the coolant is not high pressure, actually I adjusted it just blow away chips,the holes are blind. My question is : does the 0.0003" runout cause the drill broken, how about your machines runout? the dial that I used is 0.0005" graduation. 0.0003" based on estimate. thanks very much Eric

Hi,there, I have consulted the related the topics in the forum, no answer for me. four 0.6mm holes sit 0.7mm apart,only 2.5mm deep,material is Al 6061T6. 1/8" center drill drill 0.005", then solid carbide 0.6mm peck drill 0.11" rpm9950 feed 2.0ipm,Q 0.005",coolant, first hole is ok, the drill is just broken when just finished the second hole,I was wondering may be the wall of two holes too thin(0.1mm), so I tried increased the distance between the holes to 1.0mm,samething happened, drill was broken. so I check the runout of the carbide drill shaft holded in collet chuck, it is less then 0.0003", the tip to the measure point is about 0.5", is this 0.0003" runout ok for drilling the small holes? then I change to 0.6mm HSS drill, rpm, feed,peck no change, drilled 48 holes, can you help me figure out why the carbide drill bit broken? thanks very much Eric

THANKS VERY MUCH FOR INPUT. ERIC

Hi,everyone, how do you guys organize tools in the "toolpath parameters" when you chose tool for library if tool # named to different tools in different operations? can I make tool groups in the "toolpath parameters"? how? our HAAS VF-2 can hold 24 tools, for one part, there need 40 tools to finish the job. say tool# 3 repeated 3 times, one as 0.5" ED for operation 1 , one as 9/16-18 thread mill for operation 2, and one as engrave cutter,can I set them in different group? there are 3 tool #3, looks confused. thanks Eric

Hi,everyone, is there a rule of thume for ramp? say the cutter dia is "d", the bore dia is "D", how deep I can go for one loop. thanks Eric

May you setup the part with 45 degree, then use an sharp endmill mill it.

HI, Colin and experienced programmers, could you please offer me some info. (books or mannual) for learning to solve posting issues? thanks and Happy new year! Eric