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  #31  
Old 03-23-2022, 09:37 PM
JimB86 JimB86 is offline
 
Join Date: Apr 2021
Location: Post Falls
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Quote:
Originally Posted by rockitdoc View Post
Here it is with better tools:

Attachment 23810

By my calculations....the angle at the top is the arctangent of 0.625"/2.125" or 16.38966 degrees. That's 0.28605 radians to you brainy aches out there.

Hope that helps.

Scott
Scott, your arctangent equation only applies to right triangles. Perhaps the photo is misleading, but it appears to me that the angle where your two rulers meet is not 90 degrees. If you correct that, then your 0.625" measurement will shorten, resulting in something different than 16 deg for the angle at the top.
Jim
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  #32  
Old 03-24-2022, 06:55 AM
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rockitdoc rockitdoc is offline
 
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Quote:
Originally Posted by JimB86 View Post
Scott, your arctangent equation only applies to right triangles. Perhaps the photo is misleading, but it appears to me that the angle where your two rulers meet is not 90 degrees. If you correct that, then your 0.625" measurement will shorten, resulting in something different than 16 deg for the angle at the top.
Jim
Jim,
Of course you are correct. I should have realized the angle was greater than 16 degrees just by looking at it.

Here's the more accurate measurement that I got with a square:

Click image for larger version

Name:	Canopy Handle Angle.jpg
Views:	54
Size:	163.6 KB
ID:	23857

I wouldn't be surprised if the angle is really 45 degrees. It would make it a lot easier to fabricate if it is an equilateral triangle.
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  #33  
Old 03-28-2022, 03:38 PM
jcbarker jcbarker is offline
 
Join Date: May 2005
Posts: 214
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Quote:
Originally Posted by rockitdoc View Post
Here it is with better tools:

Attachment 23810

By my calculations....the angle at the top is the arctangent of 0.625"/2.125" or 16.38966 degrees. That's 0.28605 radians to you brainy aches out there.

Hope that helps.

Scott
Ok, everyone. Here's Rev 2 of the Canopy Handle:

Click image for larger version

Name:	Canopy_handle_assy-R2.JPG
Views:	55
Size:	47.3 KB
ID:	23987

There are a couple of dimensions I'll need to refine the design.
1. Rivet spacing. I don't know if the canopy frame comes pre-punched or the builder transfers the holes from the handle. In any case, give me some numbers.
2. If you give me the dimension indicated in the image below I can calculate the angle. Non-right angles require three sides or two sides and an angle:

Click image for larger version

Name:	handle_length.JPG
Views:	39
Size:	20.6 KB
ID:	23988
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  #34  
Old 03-28-2022, 05:03 PM
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DonJr DonJr is offline
 
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Rev 2 looks good. That dimension as measured on my handle is 2 3/8". I see no problem with 2 1/2" personally. BTW. The width of the handle is 4 3/8". A quick measure on the angle was 15 deg. Match drilling for the holes would be easy to perform install. The instructions on 38-14; steps 4-7, calls for you to final (match) drill the #40 holes on left (4) and right (4) sides (8 total) and the #30 holes (remaining 10) already.

Last edited by DonJr : 03-28-2022 at 05:29 PM.
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  #35  
Old 03-28-2022, 06:18 PM
jcbarker jcbarker is offline
 
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Thanks for the numbers Don!
So to be clear the instructions are to use the handle to match drill the holes in the canopy frame?
Also, I'm a little confused about the number of rivets. Could you send me a straight on image so I can get the placement right? Thanks.
All this would be a lot easier if I actually had a set of plans but I think they send those with the EMP kit which is supposed to arrive here until May.
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  #36  
Old 03-28-2022, 08:51 PM
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DonJr DonJr is offline
 
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Glad I can help John. I do not know how to upload pics on this site or I would do so. The instructions are actually contained in the Finishing Kit which I now have. I started this discussion hoping someone could step up and fix that handle. The instructions have you drill holes in the canopy frame using the handle to match drill locations. There are four holes along the left and right sides. There are ten holes similar to the pattern you have on your model for the remaining holes. The two missing holes are located on the two center rows aligned vertically. So, two rows of three in the center. You can use your pattern as a starting point. Just increase the number of holes for the revit quantities I listed earlier. It would be nice if you added two more vertical ribs to match the three existing ribs.

Last edited by DonJr : 03-28-2022 at 10:17 PM.
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  #37  
Old 03-31-2022, 04:32 PM
jcbarker jcbarker is offline
 
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Default Canopy Handle Rev 3

OK, here's the latest:

Click image for larger version

Name:	Canopy_handle_assy-R3.JPG
Views:	47
Size:	59.6 KB
ID:	24086

And the drawing:

Click image for larger version

Name:	Canopy_Handle_Assy-R3.pdf
Views:	65
Size:	56.5 KB
ID:	24087

As you can see I changed the rivet scheme slightly. All the rivets are 1/8" now and the layout is slightly different. The idea is to put the rivet holes in the handle and transfer those to the canopy frames.

As always, I look forward to you comments.

Cheers,
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  #38  
Old 03-31-2022, 05:41 PM
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DonJr DonJr is offline
 
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Awesome. Do we know anyone that can fab a few of these to test out?
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  #39  
Old 03-31-2022, 06:19 PM
jcbarker jcbarker is offline
 
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I would 3D printing one for a fit check first. Cheap. Fast.
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  #40  
Old 03-31-2022, 06:35 PM
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DonJr DonJr is offline
 
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Sounds like a great idea. Anyone have a 3D printer out there willing to go to bat?
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