TheSwamp

Code Red => AutoLISP (Vanilla / Visual) => Topic started by: nickbs on October 29, 2018, 08:42:37 AM

Title: Lisp for a Roof Cricket
Post by: nickbs 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.

Title: Re: Lisp for a Roof Cricket
Post by: Krushert 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.                                                                         

Title: Re: Lisp for a Roof Cricket
Post by: CAB 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.

Title: Re: Lisp for a Roof Cricket
Post by: nickbs on October 29, 2018, 12:21:33 PM

Hello,, attached is a rough draft. I'm limited on time right now too.

Title: Re: Lisp for a Roof Cricket
Post by: nickbs on October 29, 2018, 01:53:51 PM

I added a little more detail to the print.  :idea:

Title: Re: Lisp for a Roof Cricket
Post by: CAB 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.

Title: Re: Lisp for a Roof Cricket
Post by: Krushert 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.
(http://whatsappmodsworld.info/wp-content/uploads/2018/03/scupper-drains-flat-roof-drain-scupper-flat-roof-drainage-design-membrane-roofing-waterproof-new-typical-internal-roof-drain-flat-roof-drain-scupper-scupper-drains-for-boats.jpg)

Title: Re: Lisp for a Roof Cricket
Post by: nickbs 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-)