After a very lengthy search I have finally found a source for both 18 and 20mm black button head stainless steel M3 screws. I also managed to get a hold of black M3 stainless nylon lock nuts as well, making the tricopter look very pimp.
The screws are much stronger than the old philips screws. They have a temper rating of 10.9 and have 2mm hex heads that are very low profile. Only downside is that they are more expensive than the old screws so I had to bump up the price of the individual screw packs a bit. The Tricopter kit price however stays the same.
Since the screws showed up one day early the back ordered tricopters will start shipping out tomorrow instead of monday!
This Saturday, March 7th, Skövde modellflygklubb is hosting their annual indoor flying event. It starts at 10:00 and ends at 17:00. I’ll be going to hangout and fly for a bit, and maybe find a cool model to buy.
The Rolling Acres mall closed down in 2008. It is a really creepy place. It’s huge and empty. Every single piece of glass is broken. The glass sky lights were broken and water was dripping on the floor with an echoey splash. It was absolutely awesome! Someone in the Rotor DR1 community knew the owners and arranged that we could shoot there. Naturally I had to bring the tricopter.
Reception was surpassingly good considering I was using 5.8Ghz. Probably because there weren’t a single electrical device in or even a power-grid nearby. I broke a total of 8 props during the day and flew a total of 8 batteries. I lost all 3 landing gear during the day (couldn’t find them) due to low flying and scraping the floor. Continue reading →
The site has now moved to a new and more powerful server. Hopefully the site will run a little smoother from now on. There might be some bugs left laying around, if you find one please leave a comment or send an email through the contact from on the about me page.
Things have been really busy over here lately. You guys have been ordering like crazy, thank you for that! I have some new things in the works that I’m not quite ready to announce just yet, but they are coming. I’m also trying to squeeze in editing a video, which I hope to have ready soon as well.
Since people have been asking for it, the store now has an insured and (to some countries) trackable shipping option. The standard non-insured option is still available. A list of the trackable countries and more info on the different shipping options is available here.
Hobbyking seems to have trouble stocking the TGY-210DHM and the high quality BMS-210DHM is nearly impossible to find online for some reason. So to make things a bit easier I for people to get this excellent servo, I decided to buy a small batch of 100 units. Check it out in the store here.
Now that over 600 people have gotten their tricopters the weak points of the design is starting to become apparent. I try to test all aspects of a design as thoroughly as I can before releasing it. I’ve been flying my personal tricopter like a maniac with the original tilt mechanism without any problem. I’ve had many, many crashes and it’s been holding up great. But now that other people have been flying theirs, with with a huge variety of setups ranging from small motors and props to huge ones, some people have broken their tilt mechanism much easier than intended.
I have therefore decided to redesign the top piece of the tilt to be beefier to withstand more abuse. The tilt mechanism is designed to be tough enough not to break during “normal” crashes with the recommended motor/prop setup. The zip-ties should absorb most of the impact saving the motor, servo and tilt mechanism. The tilt should however be weak enough that in an extreme crash it should break before damaging the more expensive, and much more of a hassle to change, servo.
I believe this new design is up to that spec. Actually the new tilt is as strong as the layer adhesion of the ABS. The new part is printed 100% solid, using higher temperatures and without any cooling fans to ensure maximum layer adhesion. It is also 1.2 mm longer, but it still fits the original bottom piece. Making the part thicker wouldn’t actually add much strength past this point. In the future I might develop an optional upgrade part for larger motor setups or super beater tricopters, made from another material or with another manufacturing method. But this will take some thinking and testing, and therefore quite some time.
As I think the tilt mechanism should have been designed this way from the start, I will ship out a free replacement to anyone that got the old one, and would like the new top piece.
All you have to do is fill outthis form and I’ll send you a new one