#271  
Old 09-16-2019, 06:31 AM
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davetherocketguy davetherocketguy is offline
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Originally Posted by brutalbrutus View Post
Dremel tool cutting wheel and have the shop vac hose sitting there to collect the dust as it comes off.
Ehhhhh I think I am going to explore some different hand tool options first. Like the below...

Quote:
Originally Posted by jakebake91 View Post
Can that be cut with one of those clamp style pipe cutters? If I recall, that's what I seen somebody cut carbon fiber arrow shafts to length....but it was eons ago I witnessed that.

Something like this?

https://www.amazon.com/RIDGID-32975-...x=pipe+&sr=8-3
Hah funny you mention that. I am going to stop at a hardware store sometime today to get one of those and see how it goes.
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  #272  
Old 09-16-2019, 08:24 AM
jakebake91 jakebake91 is offline
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Originally Posted by davetherocketguy View Post
Ehhhhh I think I am going to explore some different hand tool options first. Like the below...



Hah funny you mention that. I am going to stop at a hardware store sometime today to get one of those and see how it goes.
If I recall, as long as you don't smash on the shaft and crush it, it should go okay. Don't quote me on that though lol

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  #273  
Old 09-16-2019, 11:31 AM
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Well that produced less than satisfactory results. I think I can use a tubing cutter to score a nice line to follow but I really need to use a coping saw or something similar to make the majority of the cut. I could tell that as I progressed with the tubing cutter as it got deeper into the material strands of CF were starting to de-laminate a little. If that happens it kinda defeats the purpose of using CF.
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  #274  
Old 09-17-2019, 09:03 PM
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Time for an update - but no pictures cause I am lazy. I've learned a few things about cutting CF tubing:

- A coping saw is far and away the best hand tool for cutting this. Once I have the line scored to follow for cutting this process is much easier.
- Cut outside and have a plethora of wet wipes of some sort to constantly wipe the CF off to prevent the dust from blowing around.
- The pipe cutter works excellent for scoring a line where the cut needs to go but will not cut the CF tube all the way through. Not even close.
- Coping saw blades only last two maybe three cuts at the most.

So all the parts for the lower octagon have been cut so far and I am going to use 45 degree bends to connect these sections together. The CF tubing matches the outer diameter of 1/2" CPVC piping perfectly so for about $8 I got a bag full 45 degree bends to make the two octagon sections for the bottom of the basket almost exact. So far, so good.

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Old 09-18-2019, 11:20 PM
jakebake91 jakebake91 is offline
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Quote:
Originally Posted by davetherocketguy View Post
Time for an update - but no pictures cause I am lazy. I've learned a few things about cutting CF tubing:

- A coping saw is far and away the best hand tool for cutting this. Once I have the line scored to follow for cutting this process is much easier.
- Cut outside and have a plethora of wet wipes of some sort to constantly wipe the CF off to prevent the dust from blowing around.
- The pipe cutter works excellent for scoring a line where the cut needs to go but will not cut the CF tube all the way through. Not even close.
- Coping saw blades only last two maybe three cuts at the most.

So all the parts for the lower octagon have been cut so far and I am going to use 45 degree bends to connect these sections together. The CF tubing matches the outer diameter of 1/2" CPVC piping perfectly so for about $8 I got a bag full 45 degree bends to make the two octagon sections for the bottom of the basket almost exact. So far, so good.
Could you devise a method to supply a small stream of water over the cut? I'm envisioning our band saw at work that just dribbles lube over the blade. Maybe a garden hose with the valve barely cracked? Would help keep dust down. Or some kind of vessel with a hole and valve in the bottom?
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  #276  
Old 09-19-2019, 05:30 AM
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Quote:
Originally Posted by jakebake91 View Post
Could you devise a method to supply a small stream of water over the cut? I'm envisioning our band saw at work that just dribbles lube over the blade. Maybe a garden hose with the valve barely cracked? Would help keep dust down. Or some kind of vessel with a hole and valve in the bottom?
Actually, I was strongly considering is renting a wet tile saw with a diamond blade. Problem is I think most rental places measure the wear on the blade and I am afraid this CF is going to destroy the diamond and I'll be on the hook for replacing the diamond blade. This method is going pretty well so albeit slow and I don't have a lot of money into the tools.
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Old 09-23-2019, 06:21 AM
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Update time!

Progress is SLOW but progressing. So first I have been wrestling with how to make a 135 connection horizontally and then a 90 degree connection vertically and make it work with the materials on hand namely the super expensive 16mm OD carbon tubing I bought and have been cutting to length. The solution is 1/2" CPVC bends. But then how to do the vertical section for the supports? Well in this first photo you can see the carnage from trying to use an 11/16" paddle bit and a 11/16" regular bit in my drill press. Those were a tad scary as my bits would usually jam on the pieces. No bueno.

So instead of that mess I went with the interior diameter which is 12mm and found that a 7/16 dowel is pretty danged close to that ID. So I started drilling out 7/16" holes in the center of the elbows. In the second photo yeah I know it isn't quite centered but hey, these elbows are super cheap and I bought extras. I will of course dry fit everything together before committing to glue. The third photo is my super janky set up to hold the elbows in place as I drill. This size bit is MUCH easier to deal with on these parts. With a cordless drill it didn't take long to switch out elbows.
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  #278  
Old 09-23-2019, 06:26 AM
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So I do realize that my previous post is not going to make a lot of sense why I am going through all that trouble. THese next three photos will make a lot more sense then. I'm going to cut up 7/16" dowels to about 1 3/4" and stick them into the drilled hole then the CF tubing can slide right over the top. There is a tiny bit of slop between the ID of the tube and the OD of the dowels and that's ok. I may need that tiny bit to get everything to line up. It's not like I am breaking mach with this thingy. I'll be lucky to break 500' haha.
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  #279  
Old 09-23-2019, 10:00 PM
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Dry fit time! Crucial step prior to even dreaming of putting any glue on the project. Things seem to fit together even though its a little off here and there but I think I can get it all snugged up ok. Next is to wet sand all those CF ends to make them more glue-able.
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  #280  
Old 09-23-2019, 10:09 PM
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Better than it was before.
Better. Stronger. Faster

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