Author Topic: Carbon Fiber PLA Build Diary  (Read 2441 times)

Offline killsec

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Carbon Fiber PLA Build Diary
« on: July 08, 2017, 09:26:07 PM »
Hey guys! I've been silently lurking for god knows how long now, finally got some extra fun money to start work on this amazing build! I'll be using Protopasta carbon fiber PLA for the printed parts. I'll also be documenting the build on Youtube (Links to come). In the meantime, I was wondering if any one has some sage advice for this project?

It begins!


Primary printer. Breett


Secondary printer. Geeetech Prusa I3 pro C (Down for maintenance)

Offline killsec

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Carbon Fiber PLA Build Diary
« Reply #1 on: July 09, 2017, 03:52:39 AM »
Couple hours gone by now since the start of the build, been having the printer slave away churning out parts (Time lapses on every single part too!), decided to take a bit to get the parts ordered while the next part finishes printing. I found almost all the hardware but can't seem to locate a few things, I was hoping for some help. Would be tremendously appreciated!

Parts I still need:

-Microswitch (SW052) Found it
-M4 Small head open steel grooved rivet nuts Found it
-4mm brass top hats Found it

Can't seem to find a place that will ship to me. I'm in the United States, but I'm stationed overseas in Japan for the military, but our mail still delivers technically to a US address. If anyone can help me find these that'd be awesome. Been googling and can't locate them.
« Last Edit: July 16, 2017, 07:54:22 AM by killsec »

Offline Bioethical

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Re: Carbon Fiber PLA Build Diary
« Reply #2 on: July 14, 2017, 04:32:00 AM »
Hi Killsec.
It's good to have you here. Have you checked on eBay? I found those small micro switches there. eBay sellers ship overseas to a PPO and all that stuff.

Offline killsec

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Re: Carbon Fiber PLA Build Diary
« Reply #3 on: July 16, 2017, 08:01:35 AM »
Quick update. Found all the hardware! I still need to order up the rest of the electronics, however. Trying to get as much flight time as possible, so any prop, motor, etc recommendations you guys have would be awesome.

I also finished printing out everything. I gotta give it to CdRsKuLL, these models are f*cking amazingly designed. Barely needed to use supports! Outstanding job sir.

Hopefully everything will post soon and I can press on to assembly.

I also started up a blog where I'll be posting the build log as well, if anyone is interested. https://killsec.org/

Offline denscake

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Re: Carbon Fiber PLA Build Diary
« Reply #4 on: July 16, 2017, 03:17:23 PM »
I recommend 3110 motors with 13  inch props or 4110 motors with 15 inch props like DJI1555

Offline Bioethical

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Re: Carbon Fiber PLA Build Diary
« Reply #5 on: July 16, 2017, 08:15:07 PM »
Hey Killsec, I haven't tried that type of PLA yet. Is it expensive?. Does it requires a regular extruder?  What is the temperature?

Offline killsec

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Re: Carbon Fiber PLA Build Diary
« Reply #6 on: July 17, 2017, 08:30:54 AM »
I recommend 3110 motors with 13  inch props or 4110 motors with 15 inch props like DJI1555

Greatly appreciate that and will look more into those and base my decisions on my findings, thanks for pointing me in the right direction!

Hey Killsec, I haven't tried that type of PLA yet. Is it expensive?. Does it requires a regular extruder?  What is the temperature?

Protopasta Carbon fiber PLA is a bit on the expensive side, I think it runs 40$ USD for .5kg. I did, however, buy a roll of Hatchbox Carbon fiber PLA to see if the results were similar because you can buy double the amount for the same price. Let me start this off by saying that both are easily my absolute favorite materials to work with because they produce an absolutely mind blowing finish. at .2 layer height I can barely tell its a printed part. They are both a lot stronger which means less infill. One of the things I'm going to do is dial in a good mixture of structural integrity to weight reduction because you clearly don't need as much infill as you would with standard PLA.

For my temps I print at 200c and 60c on the bed. For nozzles this shit is abrasive so definitely get some abrasion resistant nozzles, they are super cheap and easy to swap out any ways.

Pretty much between hatchbox and protopasta carbon fiber pla, the difference is quantity for the price. I love hatchbox and the only reason I tried protopasta was because I had no idea Hatchbox already had a spool of it :)

I'll have a more thorough review for both on the blog soon.

Offline killsec

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Re: Carbon Fiber PLA Build Diary
« Reply #7 on: April 15, 2018, 04:53:05 PM »
Hey guys! I had to put this on hold for financial and work related reasons, but I'm eager to pick it back up soon. I ran in to a bit of a hang up though. For the motor arms, how do I find where to drill for the mounting bolts? I've attached a pic of what I'm talking about (I know, it's the actual Inspire 1's arms, but I think you guys get where I'm going with it). Basically just want to know how to find where to position the arm and what the distances are for the arm in the red brackets. Tried searching but didn't find anything. Any help would be greatly appreciated!

Offline Bioethical

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Re: Carbon Fiber PLA Build Diary
« Reply #8 on: April 15, 2018, 06:59:40 PM »
Hey, good question. you need to find the COG or center of gravity when the drone is complete. First, tight the locks up according of what you see in the pictures, then when the drone is finished, put on the battery and everything that make it be heavier, affix with a knot a large piece of thin cable in the middle of the drone about the wall that divides the space of the battery and the lifting mechanism, hang the drone from your ceiling, a tree or a ladder and make sure that it stays in a perfect horizontal position. If not, move the locks and the "T" arm-leg supports until the drone is perfectly horizontal. You can do it after or before drilling and wiring, but drill the carbon tube horizontally so the wires have room to move back or to the front when you adjust the center of gravity.
I strongly recommend you to print and use the position Locks that have the bolts and screws externally so you don't have to drill on the carbon tube directly.

Please feel free to ask questions.

Victor
« Last Edit: April 15, 2018, 07:12:48 PM by Bioethical »

Offline killsec

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Re: Carbon Fiber PLA Build Diary
« Reply #9 on: April 15, 2018, 10:21:37 PM »
Thanks Bio, that's exactly what I needed to hear. Also, where is everyone getting their motors? I'm still not sure what I'm going for, but looking to get the max flight time possible, not sure whether to go with a 3110 or 4110 running 15" props. Anyone got some site recommendations, and maybe a specific motor?