need help on groove

Post here for help on using FreeCAD's graphical user interface (GUI).
Forum rules
and Helpful information
IMPORTANT: Please click here and read this first, before asking for help

Also, be nice to others! Read the FreeCAD code of conduct!
Post Reply
dr who
Posts: 26
Joined: Sun Mar 04, 2018 5:49 am

need help on groove

Post by dr who »

Hi,

I have a part like this:
fc013.jpg
fc013.jpg (48.21 KiB) Viewed 635 times
and I'd like to add some grooves to the major hole.
On my first try I selected the inclined face and created a new sketch (the white circle). But using pocket I can't get pocket to look like a groove (didn't know about groove at that time).

Then I read about groove from freecad wiki. So I created a new sketch for the groove to get rotated like this:
fc014.jpg
fc014.jpg (48.67 KiB) Viewed 635 times
But I found no way to select the right rotation axis.
So I added a construction line to the sketch, but it can't be selected from outside of sketch editor.

So how can I get those grooves done?
User avatar
Willem
Veteran
Posts: 1852
Joined: Fri Aug 12, 2016 3:27 pm
Location: Lisse, The Netherlands

Re: need help on groove

Post by Willem »

Make a Datum line in the center of the face you want to make a groove in
Next make a Datum plane on the Datum line.
Make a sketch on this Datum plane
Groove this sketch.
See Fcstd file for a simple example
Attachments
grooves.FCStd
(33.33 KiB) Downloaded 15 times
User avatar
Shalmeneser
Veteran
Posts: 9474
Joined: Wed Dec 23, 2020 12:04 am
Location: Fr

Re: need help on groove

Post by Shalmeneser »

@Willem :
you should support your DatumLine with Sketch001 and not a face (TNP).
Attachments
grooves_SHALM.FCStd
(26.27 KiB) Downloaded 14 times
User avatar
Willem
Veteran
Posts: 1852
Joined: Fri Aug 12, 2016 3:27 pm
Location: Lisse, The Netherlands

Re: need help on groove

Post by Willem »

@Shalmeneser You are right. I think I did this wrong because of the speed and being tired at the late time of the evening. Thank you for making this correction
User avatar
papyblaise
Veteran
Posts: 7864
Joined: Thu Jun 13, 2019 4:28 pm
Location: France

Re: need help on groove

Post by papyblaise »

can you attach your file to us, there is surely a simpler grandfather's solution :lol:
dr who
Posts: 26
Joined: Sun Mar 04, 2018 5:49 am

Re: need help on groove

Post by dr who »

Hi,
Make a Datum line in the center of the face you want to make a groove in ...
Thank you very much! That was the key :)
I didn't want to have hole/boring and groove in one sketch, but with the help of Datum line I could solve, what I wanted to do.
And selecting the front circle from the boring results in a centerline Datum line as default. Very nice!
there is surely a simpler grandfather's solution
Of cause there is!
I'm the opposite of a freecad specialist, so anybody can do better.
But that's not important.
I am glad that I was helped and I am satisfied with that.
Post Reply