Author Topic: Lisp for a Roof Cricket  (Read 2666 times)

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nickbs

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Lisp for a Roof Cricket
« on: October 29, 2018, 08:42:37 AM »
Hello, has anyone made a lisp to layout a simple roof cricket? IF not I would like to start to make one.
Any help would be appreciated.

Krushert

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Re: Lisp for a Roof Cricket
« Reply #1 on: October 29, 2018, 10:03:24 AM »
Cricket?  Or A saddle?  There is a difference.

I have been meaning to create one but I have no time.  And it would not be for me actually because I am doing construction administration for Roofing Program for a national client and hence have no time.   It would be for my architect and designers that draw up the plans.  It kills me see them drawing it out when I know it can be automated.                                                                         
« Last Edit: October 29, 2018, 10:25:13 AM by Krushert »
I + XI = X is true ...  ... if you change your perspective.

I no longer CAD or Model, I just hang out here picking up the empties beer cans

CAB

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Re: Lisp for a Roof Cricket
« Reply #2 on: October 29, 2018, 10:05:31 AM »
First start by giving an example DWG of what you want to create.
Attached is a crude Hip truss program I did in 2003.It creates a 2D plan view of a hip truss assembly with single lines drawn on the current layer.
I've reached the age where the happy hour is a nap. (°¿°)
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nickbs

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Re: Lisp for a Roof Cricket
« Reply #3 on: October 29, 2018, 12:21:33 PM »
Hello,, attached is a rough draft. I'm limited on time right now too.

nickbs

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Re: Lisp for a Roof Cricket
« Reply #4 on: October 29, 2018, 01:53:51 PM »
I added a little more detail to the print.  :idea:

CAB

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Re: Lisp for a Roof Cricket
« Reply #5 on: October 29, 2018, 02:02:43 PM »
I assume you are drawing this in 2D.
User would need to input pitch of main roof, pitch of cricket.
Rafter size (2x6)
Rafter spacing 16-24
Ridge board size
Ridge height above main roof end point or ridge run distance.
Bevel cut or butt at the rafter to roof plane joint.

Given this info I think you could draw the needed parts.

I've reached the age where the happy hour is a nap. (°¿°)
Windows 10 core i7 4790k 4Ghz 32GB GTX 970
Please support this web site.

Krushert

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Re: Lisp for a Roof Cricket
« Reply #6 on: October 29, 2018, 02:07:09 PM »
Ahhh we call those dormers.    :-D

I thought you were talking about drainage saddles and crickets for flat roofs.
I + XI = X is true ...  ... if you change your perspective.

I no longer CAD or Model, I just hang out here picking up the empties beer cans

nickbs

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Re: Lisp for a Roof Cricket
« Reply #7 on: October 29, 2018, 02:30:11 PM »
No not for flat roofs.. that is another topic... I'm designing a couple different Hotel Hiltons. We could talk about flat roof venting all day.. and emergency roof drains.

I send out the poly iso cricket designs to another company. But thanks.  8-)