I recall this problem early on with V4 or V5 as well. Roundhole should always create holes normal to the surface that is selected, not in the active Cplane. Thanks, Dan

There is the “Direction” option that you can set to SrfNormal to achieve what you are after.

Hi Rajaa, Yes, you are correct. My apologies. I guess at one point in time I must have set that and then totally forgot that that was an option. Thanks for the reminder, Dan

I also have encountered a problem with RoundHole. I am creating blind drilled holes in a surface. RoundHole allows for DrillPointAngle but ignores it and creates a squared off hole. It shows the drill point angle in the construction form, but once placed, the created hole has a square bottom. [U…

Hi Robert - so far I am not able to reproduce this - do you see the drill point angle in the preview, or not at all? -Pascal

In the preview. I am running BETA (6.0.17332.10241, 11/28/2017) HMMM

Hi Robert - can you post or send to tech@mcneel.com the actual object you’ve got when this happens? Does it happen in any file? thanks, -Pascal

Now I can’t get it to do it either. Must have been a Gremlin. The only evidence I now have of it is the screen dump I posted with my post. Showing the construction preview and the resulting hole. What was weird was that when I added a truncated cone to the end of the (apparently) squared off hole,…

No through holes are formed Sehr geehrte Damen und Herren bei Rhino, I experienced similar symptoms Die Bedingung für RhinoHole ist ein Durchgangsloch. Die Berechnung des Zylinders ist erfolgreich. Ich füge das Video und die 3D-Daten bei. 穴あけが出来ない.3dm (216.8 KB)

Hi - [image] ems_inf: No through holes are formed Thanks. I’ve reported this as RH-96246 RoundHole: Through Failure -wim

Roundhole should ignore the Cplane

Serengeti (Rhino BETA)

brian (Brian Gillespie) June 23, 2026, 9:11pm 14

RH-96246 is fixed in Rhino BETA

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Roundhole should ignore the Cplane

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