Without looking I would say use flowline or equal scallop

Dwell, the wrong dwell increment can change the time calculation, say .3 seconds vs 300 milliseconds.

Every tool that rotates has 0 SFPM at the center. Endmills are cupped so unless the ramp is greater than the cup size it won't cut to the center. Crazy when you really start to think about it. Vertical cuts can be good on straight angles. If you make a vertical cut on a radius it will facet it at the tolerance as set. I like to go lefty righty on radius because of this.

Thanks!! All good advise, all stuff I'm doing, I guess it's just this batch of material, like I said, the 1018 was getting good finishes. We started using the SAE coated port tools for steel and saw a huge improvement on finish. Doing ports in aluminum and even stainless is a piece of cake. This gummy steel is a pain to get it right. I have even thought of 2-1/2 axis rough profiling the upper taper with an endmill to see if it helps. I have a new part we are getting ready to run with a T-19AU port. That should be fun.

Anyone have programming tips for A36 and standard SAE tools?? Speeds, feeds, stuff that worked, didn't work?? We are doing a part that is A36. The previous times we used 1018CDA huge difference in getting material to not tear on the corners. I attached a sample file from Tim that has the current correct orientation for tools to create a step file. SAE-02 PORT MODEL.mcam

I forayed into 2024 with a couple of simple jobs. Got my rear bit a couple of times and am frustrated. Look back at the OP and the question remains. Selecting a tool, the list now takes "more" time to populate the data. I saw other complaints about the time for the tool manager to load. I am going to assume there is some sort of tie between these. Select the tool, wait, click again and it highlights, wait, see the data change happen or blue check it and hope it takes. Or green check it and then reopen to see if it is right..... My most current failure is selecting a tap, the data from the tool populates fairly quickly but the cycle does not populate the same way as 2023. The result was g81 for a tap and that was catastrophic. Yup, we are a fast paced shop and I'll have mutliple projects going so My fault I missed it. But, it should be easier, not harder to get it right.

This just bit me in the you know what again. Saved over it before I realized my mistake. I think ANY save to defaults wipes out saved viewsheets!! Maybe I should just go back to 2023 and ask my boss if he wants to keep paying for nothing. I'm just glad I don't have more than 10 or 100 viewsheets or so like Ron does,

HAAS G187 SETTING

Roll taps will smoke in TI but doable. As with literally EVERYTHING in this industry, VERY MUCH specific...... bwahahahaha

I forget where I saw it (Boeing? aerospace? IMCO?) but there were tests to see if the number of flutes could be maximized for roughing TI. It came down to runout and the limits of the physical universe. To get each tooth to engage well and give long life 13 is about the max for an endmill. Material removal rates boils down to number of teeth.

^^^^^^ I've had fair success with Emuge reverse spiral cut taps. Form taps do work but you need good tapping fluid. Drill to the max allowable size per the drawing or drill charts

The box stock setup sheets can give you a good start. I spent way too much time before I found out about the better options out there. The best advise is already been given, but the active reports can get you something that may work.

Found It!!! Not sure how I unchecked this, but it stays modal depending on it's status.

Where is the config switch for gnomon and geometry manipulation modes? I somehow switched it to the other setting.

I have only used Hybrid very rarely so don't have a ton of experience with this process, but it seems to work well in this kind of situation.

"It's just a guideline"

Check out chip thinning. It's already been hit on here but not named exactly. With modern software, this theory is crucial to fully understand. Lots of stuff on the intard net about it. Edit: While you are doing that, look up dry vs. wet machining and how coatings work as Ron mentioned.

OR....................run it till it blows up then back off 10%

Delrin, PEEK and similar brittle materials do chip on breakout and even when stepping over to the center. UHMW not so much, more like the opposite. But agreed, slower spindle with higher chip loads are effective on most plastics.

Third times a charm!!!

Not at all, I see guys asking questions all the time. I get questions in my shop from the guys by the minute. On things that should be learned in the first year. What you hear me expressing is frustration. Certainly, true, but also, guys learn enough to be dangerous and then know it all. There are a ton of scenarios.

I do this quite often. Drilling corners is a concept of the past. The re-machining feature in contour is pretty effective without having to recreate any geometry. play with the numbers to get your results. The option I use most often is roughing tool dia. Keep tool down and in lead in/out use a big radius angle to get the tool back around. Currently I am doing a stainless part with a 125r through about 3-1/2 thickness.

Blah Blah Blah, just throw some talent at it!!! This is fast becoming a lost art sadly. Not enough guys on the shop floor passing on the tricks of the trade. The result of letting computers do the thinking is that "we" think less. What you explain here is more normal to me and common practice. Has no one ever had to millbore a precision hole?

Agreed, many times just changing a factor screws the pooch. Change a holder, change a machine, simply changing the BRAND of a tool........ It is sooo easy to work software, but to make a program that works and works well takes years of making the WRONG decision to know what the correct decision is.

i have one library with all my tools. Maybe someday I will spend the time to detail and separate tools into different libraries, but I treat speeds and feeds like most treat a Speed limit sign on the freeway. It's just a guideline really.......