Keys When Estimating Machining Cycletime

At Kentech Inc., we have spent a lot of time over the last 25+ years working and perfecting our KipwareCYC® – Machining Cycletime Estimating Software.  KipwareCYC® started out as a resource for estimating cycletimes for machine purchase justification. Clients would come to us with the request to estimate machining time based on equipment they were considering purchasing. THIS WAS A BIG DEAL to be sure. The client was going to lay down some serious cash to purchase  a new piece of CNC equipment … based heavily on our cycletime estimate to machine their workpiece on that equipment.

Well over the years we have produced quite a few happy clients … enjoying a nice revenue increase thanks to those cycletime estimates and new equipment purchases. So we know a little about accurate machining cycletime estimate … from hands on experiences.

Two of the main factors we have used over the years to incorporate into our machining cycletime estimating are :

  1. Cutting  parameters used in the estimate MUST reflect the speeds and feeds being used on your shop floor during the machining. Using book knowledge … pie in the sky parameters … other people’s data and processes … will only lead to inaccurate estimates. This is one of the fundamental keys to accurate machining cycletime estimating. You can read more about our feelings on this issue in our previous BLOG post  … CLICK HERE to read that post.
  2. The time that a tool is actually engaged in the cut … the “length of cut” … is the most accurate way to estimate that tool’s cutting time. Using other factors like volume of material being removed … does not accurately reflect a tools cutting time. The volume of material being removed does not reflect the path the tool takes in the cut … only the amount of material being removed. The path the tool takes in the cut … the true length of cut … is the only factor that will produce an accurate cutting time.

Our KipwareCYC® application always has used a tools length of cut when calculating cutting time. Coming from the shop floor … we also realize that this is not an easy factor to obtain. That is why we created our companion app for KipwareCYC® … the Cut Length Calculator. This ingenious application uses a mix of conversational, fill-in-the-blank forms as well as the ability to import DXF files yto assist the user in calculating a tool’s length of cut quickly and easily. Our patented Machinist Mode transforms the mouse into a cutting tool … all the user need do is click around the part to simulate the cutter path … and CLC will turn that into a length of cut calculation … for either turning or milling calculations.

For more information on the Cut Length Calculator … included standard with KipwareCYC® … we invite you to watch the video below.


Quoting and estimating is the lifeblood of your business … and any accurate quote begins with an accurate machining cycletime estimate. It is undoubtedly STEP #1 !!

We invite you to check out all the features and power of KipwareCYC at our website … http://www.KentechInc.com/KipwareCYC.shtml.

Kenney Skonieczny – President
Kentech Inc.