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  #191  
Old 04-13-2018, 09:38 AM
Lars Lars is offline
 
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Location: Davis, CA
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Quote:
Originally Posted by kentlik View Post
(snipped) One more question: now I have to pinch it together 0.5" for the spring back of the plex???
I did and it worked well, though I used SikaFlex to bond the canopies I've done. I've never screwed/riveted a canopy so that might require something different.

Also probably better to think of it as 1/2" rather than 0.5"
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  #192  
Old 04-13-2018, 10:15 AM
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kentlik kentlik is offline
 
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Quote:
Originally Posted by Lars View Post
I did and it worked well, though I used SikaFlex to bond the canopies I've done. I've never screwed/riveted a canopy so that might require something different.

Also probably better to think of it as 1/2" rather than 0.5"
How did you execute this? I am afraid to throw off all my work on the hoops with a standard squeeze...fractions give me headaches...haha
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  #193  
Old 04-13-2018, 12:07 PM
Lars Lars is offline
 
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Quote:
Originally Posted by kentlik View Post
How did you execute this? I am afraid to throw off all my work on the hoops with a standard squeeze...fractions give me headaches...haha
Wish I had a photo. I'll try to describe it:

I drilled holes in some 2x4 blocks the same diameter as the forward bow tube (3/4"? there's a dang fraction again). Set the blocks on the workbench, then stuck the extensions of the forward bow into the blocks. Slid things around a bit to make sure there was no side load on the forward bow, then screwed the blocks to the workbench with drywall screws. The idea being to capture the forward bow so it couldn't move.

Oh yeah, the above setup was arranged so the entire canopy frame was over the bench (nothing hanging over an edge).

Used a ratchet strap around the bench, wound around the center bow where it's welded to the forward bow, then back to itself. Tightened just enough that the forward bow couldn't pop out of the blocks.

Dropped a plumb bob from the center bow at front and back, made marks on the bench, then drew a line connecting the marks. That way I could measure from the centerline out to each pin, for a before-and-after measurement. I used a ratchet strap looped around the pin/aft bow intersection on each side and started tightening. Then loosening and measuring, then tightening... Amazingly I managed 1/4" (that's 0.25" ) on each side. A symmetric bend, in other words.

Next I secured the aft bow with some blocks and clamps, goal being to fix it like I did up front. Backed out the drywall screws securing the front blocks, then repeated the process to narrow the front bow. That took a lot more force and distortion, but eventually I got it.

My memory is a little dim on this, but I'm fairly certain that the above was not without consequences- the frame wound up with some twist again and I had to repeat the procedure in my previous post.

Others may be able to do it faster with good results, but that's what worked for me.

In the end it fit pretty well after the canopy was installed, though not perfect. I made the entire canopy skirt out of a glass/carbon layup, which nicely covered all imperfections. If you can't see them they don't exist
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  #194  
Old 04-13-2018, 03:05 PM
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kentlik kentlik is offline
 
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That sounds like a good process. I can imagine you had to close it much greater than what you ended with in terms of final dim's. +-50-100 thou
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  #195  
Old 04-14-2018, 11:12 PM
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kentlik kentlik is offline
 
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Default track

I started on the slider track. Had to move it up a bit to get the slider to fit very close to spot on at the rear. This was set during the fitting process not after.





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  #196  
Old 04-15-2018, 09:26 AM
Lars Lars is offline
 
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When you are done with track fiddling, do yourself a favor and go to your favorite hardware store. Pick up a nice 1/4" acorn nut to cap that piece of all-thread supporting the track. Or risk a nice 1/4-20 (or 1/4-28, depending on what you have there) scar on your scalp like I have
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  #197  
Old 04-15-2018, 10:17 AM
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Lars will do! I have a piece of AL tube to go over the all-thread as well, not a fan of all-thread for the most part...
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  #198  
Old 04-15-2018, 09:52 PM
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Blain Blain is offline
 
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Kent, do you plan on Sikaflex? Excuse me if you stated it earlier in the thread.
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  #199  
Old 04-16-2018, 10:06 AM
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kentlik kentlik is offline
 
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Quote:
Originally Posted by Blain View Post
Kent, do you plan on Sikaflex? Excuse me if you stated it earlier in the thread.
Haven't decided Blain. I just ordered the rivets to drill and rivet, but not sure I will do this method but wanted the option. Leaning on drilling per plans. I try to follow plans most of the time. Have left over sika? I have a source for some locally that I need to get in touch with the owner about buying. I want to have it on hand to back up the rivets regardless.
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  #200  
Old 04-19-2018, 10:28 AM
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kentlik kentlik is offline
 
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Default canopy latch

This latch stud is not in the correct orientation to the latch arm...









I will have to bend the latch arm to get proper purchase on the stud. I am aware that I need to massage the end of the latch arm I have that math to do next.
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