Introducing the Lynxmotion Phoenix Hexapod Kit!

Lynxmotion Legged Robots
201

Nah, its all good. Things take time. :smiley:

202

Also also,

Jim,

Do you have anyone to make the 3D models of the Phoenix plates yet? If not, I wouldnā€™t mind volunteering.
(particularly because that kind of stuff gives very useful information about leg angles and such)

Thanks!

203

I will send you the files. Can you import a DXF, because the parts were never dimensioned, just went straight from CorelDRAW8 to the waterjet CAD system.

204

Yes, I can import DXF. As long as I get one dimension for scale verification, I think it will be ok.

Thanks

(edit, and just thinking about it, even one dimension might not be needed, because I know what the SES mounting pattern is and I can just check off of that :stuck_out_tongue:)

205

Iā€™ve been doing some testing with my leg contact sensor below. Iā€™ve got it wired from the ssc-32 5v source thru the switch to the ā€œCā€ analog in port on the board. Iā€™m using a 15k ohm resistor to keep the analog input port pulled down to 0v while the contact is not made. When the contact is not made, the analog value reported is 0. When the contact is made, the analog value is 255. Iā€™ve made a simple routine that has the servo make a 3 second downward movement with the contact sensor. The analog value is checked every 70ms during the move. When a value >100 is received, the servo is given the ā€œstopā€ command. This seems to work fairly well. I still need to check to see if a current servo can be obtained after the ā€œstopā€ command is issued. The ssc-32 is eratic in receiving the timed move command, but iā€™ll make a post else where on that issue.

http://www.geocities.com/zoomkat/pix/contact1.jpg
http://www.geocities.com/zoomkat/pix/contact3.jpg

206

So $69.95 will buy me a

Without the servos or electronics :question:

207

One Phoenix kit:
$69.95 for the waterjet cut top body, bottom body, all femur, all tibia.
$11.95 x6 for the ASB-04 Servo Brackets
And if you go metal horns:
$3.25 x18 for HMSH-02 metal servo horns

So, $141.65 for all the hardware w/o metal horns, $200.15 for all the hardware with metal horns.
(Prices based on Jimā€™s store as of Feb 16 2008)

Edited by Jim :smiley:

208

Whatā€™s the recommended servos specs for this bot?

209

18 HS475 servos would probably do the job, but I highly recommend 645MG for the femur. Iā€™m using 475 for the coxa (HipH) and 645 for the femur and tibia. Of course, if you can afford it go for all 18*645. Or even better: 5645 ! :wink:

210

Zenta, what is the payload capacity of your bot?

Thanks

211

Hi,

The payload capacity depends a bit on wich type of gait method you want to use. The tripod gait is the most demanding since only one leg is holding the body one the one side.

But believe it or not: I did a payload test right now. And Phoenix was able to tripod walk with a payload of 2,5 kg! :stuck_out_tongue: So a payload of 1 kg was no problem at all. Total weight of my Phoenix is 1,8 kg.

I think the battery began to worn out but I managed to get a video of her while rotating ripple walk with 2,5 kg on her back.

Attention! This was only a demonstration and I wonā€™t recommended applying much more than 1- 1,5 kg payload.
youtube.com/watch?v=fsAUTXNeUhA

212

The 3D is coming along :slight_smile:
Just waiting for Jim to resend the femur (cause that got lost in translation or something :stuck_out_tongue:) and then I have to do the tibia.

Teasers:
http://www.siennahanon.com/Robotics/lm_phoenix_top.jpg

http://www.siennahanon.com/Robotics/lm_phoenix_bottom.jpg

And if you plan on purchasing a Phoenix, here is some dimensions for programming the offsets:
http://www.siennahanon.com/Robotics/lm_phoenix_dimensions.jpg

http://www.siennahanon.com/Robotics/lm_phoenix_dimensions_2.jpg

213

Wow an elegent robot even under pressure! :wink:

214

Iā€™m looking into it. :stuck_out_tongue: Sorryā€¦

215

Stop the pressesā€¦

Some of the examples above for pricing are wrong. Give me a little more time to accurately set this up for sale. Iā€™m going to include the little annoying bit and pieces you need to build the thing. The only SES parts you will need are 6 ASB-04 pairs. Only one person has purchased this so far and they will receive a discount or parts to even it out.

216

I need to know who is still interested in the no anodized parts. I am going to try and email all on this list who have shown an interest. I need to get the parts to the anodizer and canā€™t send them until I know how many want them. So youā€™re NOT waiting for me for a change! :wink:

217

A word of note on the Tibia 3D piece:

The servo holes are only Loosly placed according to Jimā€™s design. The servo holes Should match the servo on the 3D models set already though. This was a tradeoff, and I thought it would be best to get things mate-able rather then accurate to 1/1000th of an inch.

Also, note that I will never be as good at organic curves as Jim :stuck_out_tongue: So, while the tibia is mostly correct, the shape does vary again by a tiny bit here and there due to modeling inaccuracies.

218

Be sure you have my latest 3D model of the servo and ASB-04. I found a slight glitch in the servo model which I fixed in the last batch of models I sent to Beth. The updated servo model will align all four holes to the new ASB-04 model with fillets on some corners. If the models you have do not, then you need the new ones. If we work together, we will be able to create a solid batch of new 3D models for Lynxmotion. :slight_smile:

Me either! I havenā€™t even tried to model any of the curvy robot parts.

8-Dale

219

Just wondering if there is an ETA on this kit being available? I was looking at getting the CH3-r but i think ill wait for this.

220

We are sending the parts to the anodizer this week. So it should only be a couple more weeks.