TurboCAD Forums

The Ultimate Resource for TurboCAD Knowledge

Remember to do a search before you ask a question!!!

Simple Drill Bit
Read 1231 times
* April 26, 2018, 01:27:07 PM
Here is a simple drill bit. First time to use the twisted extruded tool.
« Last Edit: April 26, 2018, 01:37:08 PM by DDriskell »


April 26, 2018, 07:38:47 PM
Pretty realistic.  I'd fillet the boundary between the shaft and the bit.

How did you create the tip?


TC Pro Platinum 2019, 2018, 2017, 2016 & 2015 (all with LightWorks & RedSDK) & V21
System: i7-5820K @ 3.30GHz, ASRock X99 Extreme4, 16GB DDR4-2133 RAM, Gigabyte GTX 970, Samsung NVMe SSD 950 (256GB), Windows 7 Pro (64-bit) SP1

* April 26, 2018, 09:41:22 PM
Hi Jeffand thank you for your interest. I am still learning and experimenting. I am just now reading this post late and I will show you the profiles tomorrow.
In the meantime basically only for the tip I used a 2D profile of a circle at the end of blunt bit, then used a very thin rotated rectangle (on same plane as circle). Then I moved the very thin rectangle out away from the circle. Then I lofted the two profiles , circle and thin rectangle. I then “added” the created tip to the body of bit. I realize several things about the bit that is not accurate such as the angle of tip. My experiment was to even see if I could do it. I can then go back and be more scientific with it. I will post the main profile image later.


* April 27, 2018, 10:58:43 AM
Profile and Redo of drill trying to be more scientific.


* April 27, 2018, 11:20:56 AM
One Last View with highlighting of outside flutes. (sorry don't know all the terms).


* April 28, 2018, 05:39:49 AM
A few years ago I designed a jig for 4-facet drill sharpening. This model shows what 4-facet sharpened drills look like.

Gary Wooding
Win10 64-bit,
TC21.2 x64 Plat, Bld59
TC16.2 Plat, Bld54.0
TCC 3.5

* April 28, 2018, 10:00:44 AM
Thank you Gary for that detailed info. I feel as if I should have invested more research into my bit. As my learning curve progresses, my enthusiasm ran past taking the time to do a more accurate representation.