Drill center mark

[acourtjester]

How do you mark the center of a hole in a CAD drawing, I want to layout where to drill a hole on a drawing but cannot find a tool to do it.
I am using TurboCad 20 but info about other software may point me in a direction that would help. I have been drawing very small circles like 0.002". There must be a better way for the center to show in a DXF drawing

[SeanP]

Do you not just use the hole as drawn and then use drill tool in sheetcam and then choose min/max hole size.
Tophole is 12mm dia, second is 13mm, then 13.5 &14 below.

drill.jpg

[acourtjester]

What I found was in QCAD they had under Draw, Points, and then single point would give me a dot but did not want to learn another program.
When to TurboCad and was able to use the circle tool set to 0.001 diameter and then located where I want them.

points A.jpg

points B.jpg

[bhamer62]

I just draw a plus sign or a X over the center point location and then draw a circle to the drill size to make sure it clearly marks the spot and someone doesn't drill where a random scratch may be...... oh yeah, then I etch those marks in.....

[steel 35]

For the machine drill I use .125 circles.
For a center punch template. I Use a Donut adjusted for my eyes,

[Black Forest]

If you use Fusion 360 there is a provision for inserting a center marking + . Just select the circle and then click on the centerline marking icon.
Geo Magic makes you jump trough hoops and set it in preferences.
SpaceClaim is pretty east also.

[acourtjester]

Thanks for the replies have fun
Tom