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Mats Önnerby posted an update 2 weeks, 5 days ago
Just want to share a video that was created by Lakhwinder Singh when Markus, Robyn and I visited the Indian Institute of Technology in Rorkee earlier this year.
lorn campbell posted an update 1 month, 4 weeks ago
I am programming my InMoov using EZ robot software. I have taken his forearms off as I am updating his servos for his hands, so only part of him works at the moment. His head, neck and torso is working in this video. I have added an adapted “Bob Houston” neck on him by Gestalt73. Fitted a speaker in his mouth, but need to work on the…[Read more]
Lorn, that’s brilliant. How long have you been working on your Inmoov? I’m using EZ to co troll mine but I’m not as far ahead as you. Where are you in the UK?
Hi Steve, thanks
Been building my InMoov since about last August when I bought my Wanhoa printer. Started using EZB about January time. I can send you my files if you want as I found that looking at existing setups answered so many questions. Also chat to Bob Houston on the forums as hes made his files available. They really give an insite to…[Read more]
I was thinking about your ideas on a robot meet. One idea might be to have meet-up using video conferencing. I use “zoom meeting” at work regularly and its free. We could set up a time/date that suits people is the US also maybe. Its really simple and you can use your mobile phone/laptop/pc etc to participate. We could keep it…[Read more]
Hi Lorn, that’s a brilliant idea. I’ve not seen Zoom before. It look a bit like face time.
I’ll join up and perhaps we can do a test run together.
juerg posted an update 3 months, 2 weeks ago
My Marvin has now a movable base like Markus has built one quite long ago. Now I need Calamity to add a few things to MRL to get rid of the joystick and have it find its targets by itself!
lorn campbell posted an update 4 months ago
Mm InMoov face and eyes being tested. Just using a small servo tester so its not calibrated properly yet.
Looks great, but you had me worried for a moment when I compared to mine! Is there a reason you’ve mounted the eye mechanism upside down vs. Gael design? Does it give you some benefit? I don’t have a completed skull yet, to see how the clearances and space work out with your orientation.
Hi Wayne – very good point about it being upside down! I am not sure if it will fit in the head that way around but at least I could hold it in the vice whilst taking the video. Been waiting on the camera parts to arrive before I finish the head – camera finally arrived yesterday.
My Inmoov eyes mechanism being tested
lorn campbell posted an update 4 months, 1 week ago
Finally started to paint my InMoov so dismantled him and am rebuilding and spray painting away. I also got the base stand sorted out and am now printing the final bits of the stomach parts. That left hand is still in a plastic bag so must build that finally!
Just a note about picture uploads on this site – using an iPhone to take pics in…[Read more]
lorn campbell posted an update 5 months, 1 week ago
Here are the lower stomach parts
Looking really good.
Here are latest pictures of my robot build
juerg posted an update 5 months, 4 weeks ago
Forearm alternate with more variations for hand positions?
Anybody interested in helping design an alternate InMoov forearm?
I would like to move wrist rotation back into the elbow – eliminating string issues with wrist rotation.
I would like to add more DOF for hand direction, something similar to Bob Huston head.
I would also like to use…[Read more]
See my comments in the Forum
juerg posted an update 6 months, 1 week ago
Marvin fixing itself
LOL…. great video Juerg…. Glue maybe but I wouldn’t let Marvin near a soldering iron if I were you… I really need to learn how to prepare and edit video… On my list of things to learn this year…
juerg posted an update 8 months, 1 week ago
A moveable base and a planned escalator for Marvin. Don’t want to drive around with Marvin in scary heights.
lorn campbell posted an update 8 months, 1 week ago
Hi everybody, finally got around to uploading some pictures of my inmoov. My printerstopped working recently but all working again now and printing the left arm!!
juerg posted an update 8 months, 2 weeks ago
Tried to win a bike in a foto competition but it looks like they had no robot in the jury
juerg posted an update 8 months, 4 weeks ago
Local Newspaper Interview (sorry, live in middle Europe
Marvin zum Beispiel. Nachdem Jürg Maier ihm das passende Kommando gegeben hat, streckt Marvin die Hand aus, neigt den Kopf in Richtung seines Gesprächspartners und sagt mit monotoner Stimme: „Ich bin glücklich einem Menschen die Hand geben zu können.“ Marvin ist ein lebensgroßer humanoid…[Read more]
Thanks for sharing.
You look like two good friends shaking hands!
Mats Önnerby posted an update 9 months ago
I made a small upgrade of the shoulder servo. The small potentiometer broke, so I use a larger potentiometer with a 6mm shaft. It’s the olny part that I have changed,but I think the same principle can be used on all potentiometers. The new potentioneter can rotate 270 degrees instead of the original 180 degrees, so the servo mapping has to be…[Read more]
That for sure is a safe pot!!
But you didn’t use my latest pot holders, that means your parts can no longer fit PivTit and RotTit of the latest version…
I guess, it’s because you already had PivTit and RotTit printed from the previous version. I like your little potentiometer board option, it’s handy for to simply disconnect.
I added two versions of the pot holder to Thingiverse. They fit the latest version of the shoulder. One version is without the cable guide and the other with the cable guide.
Great Mats !
juerg posted an update 10 months, 1 week ago
Love your InMoov base however looks to be rather expensive to buy or build one?
Markus had posted all his mecanum wheels design here:
lorn campbell posted an update 11 months, 1 week ago
I have bought Wanhao i3 V2 printer and have started to print the hand and wrist parts. Using PLA to print with. I will add pictures soon. Built the starter finger and got that to work with myrobotlab software but no luck with voice control yet, although it chats away and hears me OK.!
Let us know how that goes, and feel free to explain your issue with the sound commands of MyRobotLab.
Hi Gael, great to talk to you. I am still printing the hand and forearm and will look at the software again later. All going well!
Quick question – where is a cheap place to buy the extension springs for the hand tensioner? Can only find 20mm long not 10mm long. Also is that the spring length only or total length? all the best, Lorn…[Read more]
I actually bought my set on ebay:
juerg posted an update 11 months, 1 week ago
I have started to replace broken HS805BB with bluebird BMS L530MG (hobbyking). I have one for my bicep and another one for the neck. The bicep initially worked fine until the horn adapter started to slip (the lower arm is a heavy bugger). I recommend therefore metal servo horns with the bluebird servo. You need to order them separately.…[Read more]
juerg posted an update 1 year ago
An error in a script and an unreachable neck position – just burned another HS805BB so badly, it burned a hole into the case and I can still smell the odor of death when entering the house.
I have added now readjustable fuses for all of my large servos (PFRA 160, Reichelt.de).
Hope this prevents future smoke!
Thats a good idea! Can you share details on how to install them?
Sorry, yes, just route the connection from either plus or minus pole from the power supply to the servo through the fuse. The fuse is supposed to heat up with current flowing through it and increases resistance thereby lowering the voltage for the servo and make it stall. The fuse regenerates when cooling off.
The fuse works in a slow mode so…[Read more]
Thanks juerg, I’ll check into it more as well.
mmm good idea, i add too some capacitors to prevent jitter ( i test it tonigh ) : http://letsmakerobots.com/node/12679
let me know about your caps result. I had an issue with a digital servo impacting another analog one. After connecting the dig servo to another power distribution point the problem resolved itself but having a cap for the signal lines looks to me like a more robust solution
I think we have the same problem, I have mixed dig cys and analog 805bb. I tell you the results soon
Update: Actually had a problem with left shoulder rotation servo (continuing small repositiong with growl) and after a while it stopped to move (fuse and servo rather hot) so the fuse did it’s job.
Have added now the 104 (100nF) caps for all shoulder servos (between signal and ground) and as it did not completely stop the growl a lot of has gone…[Read more]
Juerg I just want to say : IT’S MAGICAL . No more jitter or zombie servo when detach : https://www.facebook.com/photo.php?fbid=10210323785361860&set=p.10210323785361860&type=3&theater
thanks, great picture but I do not use nervo boards.
the pin right next to e.g. 12 is the signal line?
the dark green edged pins are the + power ones?
the 100uF ground side is on the signal?
and 104 is a 100 nF cap?
the 100uF ( the big chimical, it’s bad we need ceramic ) is pluged to +6v ground power line .
The 100nF ( The small 104 ceramic ) is pluged to each signal pin. ( +signal , ground )
The signal and the power shared the same ground.
Great! I remember a post on the InMoov forum mentionning something similar, It sure would be great to add that option on the next Nervo boards release.
Replacing a broken HS805 with a Blue Bird BMS-L530MG in the bicep. Its available at 20 Eu from hobbyking. Almost same specs but a bit shorter. It’s easy to remove the pot as it has a floating controller board. Downside is it has a smaller servo horn and so the rigid plate connector included with the HS805 does not fit.
You can find the adjusted…[Read more]
juerg posted an update 1 year, 1 month ago
InMoov Head with less holes
Finished design of a face/skull version with lesser number of parts. You need a print bed size of 20 * 15.5 * 10 to print them
Hey, this was awesome. I printed it up.
Thanks for your feedback, glad you can use it! You need to spread the face a bit when mounting it over the jaw mechanism but it wasn’t difficult.
I printed your inmoov face, its very nice, I will try the jaw mechanism later and will show you the job finished
juerg posted an update 1 year, 4 months ago
A comparison of InMoov pistons with different materials
I have run tests with pistons made of different materials.
Find the details here
is last bronze pla ?
All bronce is PLA, yes
Nice set of test prints!
I have also tested nylon and carbon.
Thanks Gael, unfortunately it wasn’t really worth the work invested. I assume you found similar results with nylon and carbon?
Can anybody tell me what words are spoken when hovering over the finger print picture?
Can only identify \”InMoov\” – the second word is lost in my sphinx-algorithms
thanks, makes sense and I can hear it now!
Marvin got an update for appearance
I’m trying to see which appearance update Marvin’s recently got..
Blue super hero strips on the biceps?
Thanks, Gaël, my robot did not have colors at all before and I did a lot of grinding on the breast parts. Took me also some time to make the characters fit into the indents
Ah of course!! Marvin has a great look! Only the eye pupils are too small and it makes him a bit scary.
You could use the same blue paint for to color the eye rings
My Marvin with blue eyes – what will keep the girls away?
juerg posted an update 1 year, 5 months ago
Tired of soldering?
Maybe you want to have a look at my solution: http://snaptip.com/ro15mqorh8/soldering-vs-crimping
Hi Juerg. That looks really good. I ordered a set of 100 male+female 3-pin connectors based on your suggestion. I think that will be enough for the whole build
Hey nice MAKER suggestion, I bet it is going to help more than one builder. Thanks for sharing.
A little bit more autonomy?
I have created a MRL-script (python) that includes the kinematic facts of InMoov, reads the current servo positions and calculates the head and palms x,y,z positions from it. Based on this the rothead and neck positions are calculated to have the eyes point to the hand by simply using
lookatHand(“left”) or…[Read more]
Woooiii, super cool !
I posted your video on my Google +
I want to test that it seems like a lot of fun!
juerg posted an update 1 year, 6 months ago
When I started to wire my InMoov there heavent’t been Nervo Bords available so I did set up cabling with the method Mats showed on one of his posts – using Mini-Display cables and terminater boards.
I first had my cables go right down into the forearm but this practically disabled the option of removing the forearm from the…[Read more]
Thanks for posting this. It looks very good. But I think you have seen it on Markus build, not mine. So all credits to him.
Thanks for pointing this out and sorry Markus for not mentioning you instead. I mixed up your names and it’s Markus who holds the record in disassembling InMoov for transportation in a suitecase!
Hi Juerg, the route that Markus took with these connectors was very impressive.
Marten, Leon and I had already been working on the Nervo Board and had started the first batchs when I saw his connections, other wise we might have proposed something similar.
Finally – took me a long time – the video, the description and the parts of the self levelling hand for InMoov
hello juerg interestinf wrist
thank you for show us
Very good demonstration and video!!
This looks very promising for handling beverages and other delicate tasks.
I will Google+ your video and add the parts to the derivative collection because it’s very interesting progress.
I just wanted to thank you all for the replies I received for my modified hand from different sources. I hope to see soon a copy of my hand on other InMoov’s!
Mats Önnerby posted an update 1 year, 6 months ago
I’m almost finished with the mechanical build and the testing of each servo individally. Next step is to purchase / build and install all the electronics and batteries. The back is still a bit empty.
Super cool !!
Your choice of colors remind me of Leonardo’ super hero:
How is the Raspi doing for post processing video tracking on MyRobotLab?
I will post the Back Parts soon…
You should post your pictures in your album, you might get featured on the side page.
I get about 2 FPS when doing facetracking. That is good enough, however I also get 5 seconds latency, and that a bit to much. I have tried using the camera outside MRL and I get good results from the camera. I can stream at about 30 fps about .2 s latency. That is good. I had a problem that took me some time to figure out. The java runtime that…[Read more]
I would love to have this on my desk, I only have a head so far, and that’s controlled by LEGO
I also realised some time ago that using the latest version of MRL which uses OpenCV 3.0 that I would get a low fps result. I was recently mentionning that to Grog and he said he would digg into it.
So, using the Lenovo tablet touchpad with the version 1.0.107 gets me with a a fps of approximately 30.
Using the version 1.0.954, gets me to a 7/10 fps.
juerg posted an update 1 year, 8 months ago
Tried to create a self levelling hand for InMoov. I use a BNO055 for the pitch/roll recognition and a Arduino Nano for the servo control.
I had to redesign the hand connector to allow for a low friction movements of the strings. I used cutted nails and distance holders for easy movement. I have also redesigned WristLarge to have bumps on the wrist…[Read more]
Very nice Juerg!! This looks awesome!
I like the accelerometer effect shown in your video. The place where you have set your servo is a place for to set an extra servo, so I’m glad to see you did good use of that space.
I see you added a piece to mount the rear part of the servo. In one of my previous design the servo was lining sideway at that…[Read more]
Mats Önnerby posted an update 1 year, 9 months ago
The new dual track servo pulleys interfere with the cover of the hand. If you use them some material needs to be removed from the arm cover to make room for the front middle pulley. Thanks to Juerg who warned me that this could be a problem.
Is this a option to use:
(sorry, there is no option to upload a picture directly in a commend)
As you can see at the drawing, there is a normal sized part (left side) and a smaller sized part (right side).
For the smaller side (with a oval form) you have to play to get the correct length you need.
Hi Marten. I just cut of a few mm’s of the hand cover support. It’s only there to support the structure during print. I don’t want to replace the dual track pulleys since they work very well. Have a look here for a demo https://www.youtube.com/watch?v=b5S-8hjsMr8
I’ve seen the video and the results are perfect !
The option was more meant to update the Pulley’s for other InMoov builders, how like to use your Pulley’s, so they haven’t to cut anything
From a math point of view, an excentric pulley will work very different. With two tracks, it’s just linear movements. The excentric can only work between very limited angles. With two tracks, you can rotate any angle. The ratio will still be the same.
Maybe reducing the filet height for the tendon, this way the pulley would be less high and wouldn’t cause a problem with the covers of the for arm.
Awesome solution for tensors Mats!
Thanks a lot for it and for sharing it over thingverse!
Saved me $$ on springs!
Sorry forgot to ask if this solution need a different MRL configuration, if so can you be so kind to explain changes need please?
No change to MRL, except that you may have to change the max and min values for each servo that controls each finger, but thats someting you probably will need to do anyway.
I added a new video to show the difference between the original servo pulley for the hand, and the new dual track pulley. https://www.youtube.com/watch?v=b5S-8hjsMr8
Ehi Mat, thanks for sharing!
I will print one to test on a finger starter kit to see the effects.
juerg posted an update 1 year, 9 months ago
Currently on vacation in Japan (they have some nice robots here too but InMoov is not popular here).
I can’t draw you a picture with my mobile but look at this – the servo has to travel 17 plus 27 mm for complete opening and closing. Depending on the servo you have installed (my mg995 can do about 210 degrees) this will be…[Read more]
Hi Juerg. I appreciate that you want to help. But from your answer, it is obvious that you don’t understand the basic problem. It has nothing to do with centering the servo. The servo needs to pull 27mm on one side to close the finger, while releasing 17mm on the opposite side. That is a difference of 10mm. Not a sum of 27 and 17. To open it…[Read more]
I think I got your point. When doing my first pulleys I had problems that they interfered with the cover, adding a second track would require lower built servos or a modified servo-bed? And the string-guiders will need to be adjusted?
A litte update to expain the reason that I redesigned the servo pulleys. I use the fingerstarter to explain. In the first picture the hand is open and both lines are stretched. On the second picture the hand is closed, but the lines are not stretched any more. To close the finger the servo pulls about 27mm and releases 27mm on the other end. But…[Read more]
Pictures were uploaded in a different order than I expected. So the last picture shows the open finger with lines stretched and the two other when it’s closed and the lines are not stretched anymore.
Maybe I see things the wrong way but I do not understand why you have to modify the pully. Set your servo to the middle position than add the pully with a 10 mm offset towards the closing side. In MRL define a mapping that covers the 44 mm range for the full movement with your servo?
Hi Juerg. Please post some pictures or a video of your solution.
Video of testing the new servo pulleys for the hand. https://www.youtube.com/watch?v=gwx3JIakDV0
Very good idea the “double pulley”. You get the same results for the pinky and middle finger ?
Almost. Even if the pinky moves a shorter distance than the middle finger, the ratio between opening and closing seems to be almost the same. I only use one pulley size for all fingers.
Very good idea!
I have made new servo pulleys for the hand. They have two tracks with different diameters, since you need to pull a longer distance to close the hand than to open it.http://www.thingiverse.com/thing:1074604
To close one finger you need to pull 27mm but to open it again only 17mm, The 10mm in difference will result in that the lines easily fall out of the tracks, The servos will also have a deadband of 10mm before they start to pull, With this construction the lines will be stretched all the time, so the fingers will keep their position better.
Good question. I don’t think that springs are necessary, but if you turn the wrist, the lines will be tightened. So you have to compensate for that by relaxing the tension on the lines a little,
Can’t really see why you want to modify the pully. Put your servo to middle position and add the pully with an offset to the closing position that will account for the different distances for opening and closing. The use the mapping feature of mrl to adjust the overall distance for your servo in use?
I posted an update to explain the probem.
Probing my hand I I have about a 180 degrees range of turning the wrist, InMoov (depending on the used servo) about 110 degrees in my case.
I have read through Anar’s version of a 180 degree wrist but it looks like to be a lot of detail work and probing…
Given the range of my MG966R is about 210 degrees another solution might be to…[Read more]
Yes totally do-able. During my design I tested a winch servo which could rotate at 360 degree. What happens though is, more it rotates and more it pulls on the tendons.
Though I have been recommending 0.8mm braided fish line, you certainly could reduce the holes to let your 0.6mm go through. Also I would like to mention that my first design of the…[Read more]
Bicep Back Cover (second try, first link did not work and no edits on published messages available)
Worked on a back cover for the bicep.
There is some doubt it will work with the nervo board in place. As I do not use them I need somebody to give it a try and tell me what needs to be changed.…[Read more]
Thanks for posting it.
Like I told you in our private email:
Awesome!! Totally in the InMoov style!
I will print a set today and let you know how it goes along with the mini breakout Nervo board.
Your link seems to be broken… I also can’t find your parts on Thingiverse
Sorry, too many things in my mind. I did not publish it so it looked OK for my but not for others. Hope it works now.
Ok it works now, I will print one tomorrow and let you know.
Okay, one printed. It fits nicely! I actually printed only the upper part, because after checking in Blender, the lower part wouldn’t let me set my cables.
Mats Önnerby posted an update 1 year, 10 months ago
First test of the servos. The neck works fine. Jaws needs to be changed to increase the speed of movement. Eye servos tested but not connected to the eyes.
That looks like a very good design I really like the eye movement
Hey cool ! Thanks for posting the video!! I love to see stuff like that. Yes the speed of the jaw needs to be increased. Bob Houston has made a remix for the eyes, I wonder if it fits in one normal InMoov head.
juerg posted an update 1 year, 10 months ago
I would like to add a bit more control of the hand to keep it more horizontally (things tend to fall off Marvin\’s hands). Any success stories or frustration reports about that?
I have found a pretty good solution last year. I didn’t post about it because I wanted to test it before. The hand was set up at an exhibit running the whole day for nearly two months, and the result was concluant.
I will upload the STL files when I get a moment.
The springs instead…[Read more]
It’s good to have control of the string length at the pulley, maybe your tutorials should include this update?
For the springs – I think it’s good to keep the strings under tension – great pictures and nice cabeling! But e.g. a bit of a fragile object might still be broken because the servo won’t stop?
I see you use your preferred HK servos in…[Read more]
The basic problem is that the you need to pull a longer distance in one direction that the other. For example the major finger needs to be pulled 27mm to close but only 17mm to open. So the servo pulleys needs to be redesigned to have two different lanes, with different diameters. I have started to experiment, but the pulleys I try now are to…[Read more]
@juerg, the servos won’t break parts, at least it never did on any of the hands I have assembled. In MyRobotLab you set the Min and Max for each servo, this avoids the servos to force further than necessary.
The pulleys mounted on the HK15298, even though it rotates only 90 degrees, can actuate fully all fingers, only the Majeure finger is…[Read more]
Thanks for posting the spring design. I think springs has to be part of the solution, since turning the wrist will pull on both sides of the servos. A different design of the pulleys may decrease the length that the springs need to flex.
Springs will the best/easiest way to solve the problem.
I will use this Pully, including a spring to let the finger go down again.
I haven’t springs at home to test, so here some different views from my drawings and a mounted pully at a servo:
This Pully size is fine for the Index finger, when the servo makes a…[Read more]
I would like to close up the back sides of the biceps. If nobody has this in his pipeline I could start work on it.
I have added more SCAD files for creating individual parts for different servo dimensions
I have tried to come up with a howto about my method of finger string assembly
The eye mechanism can be found here: http://www.thingiverse.com/thing:1035688
I added the part that is needed for the neck to part 1 http://www.thingiverse.com/thing:992918.
I’m almost finished with the head. Next step is to connect the servos to the Arduino and power supply.
I like the way you re-arranged the space to be able to add the Raspberry and the Arduino. Does the jaw still have a servo attached to the mechanism?
I sure would like to see a video of the eyes in action!!
Thanks for sharing your modifications on Thingiverse, I appreciate you respected the licence. I have added all three links to the…[Read more]
Hi Gael. I have a jaw servo, It’s located where front cogwheels was mounted. I use the modified neck that was designed by Bob Huston. I see now that I have missed to post the part that replaces the other cogwheel. I will do that soon. Picture one shows the location of the servo just above the speaker and picture three shows the modified jaw…[Read more]
Okay I see it now. Post a video when you are ready with it.
Hi Gaël. I think the link should point here: http://www.thingiverse.com/Gael_Langevin/collections/inmoov-parts-and-derivatives. Same problem with the link on the “InMoov parts and derivates” page and also on the “Build yours” page.
Yes thinks for pointing it out. Problem fixed.
Nice upgrade Mats
I’m sure it will be a EyeCatcher !
I hope to print the head after my Finger Sensor project… and will use your EyeCatchers
Just read an article about servos – it provided some insights I would like to share.
It’s true that understanding how a servo works is a good starting point. Though I must say that some things about servos still don’t make sense to me, ahaha.
An example, why on most website selling servos, the specs rarely mention what is the maximum degree rotation a servo can achieve. It seems to be something you should discover once you bought…[Read more]
You are right – there are many missing pieces in the specs the producers or resellers provide.
Maybe we could make a call for all builders to ask servodatabase for additional columns in their filter and list?
I just started with a mail to firstname.lastname@example.org!
Maybe a servo for the legs? (don’t look at the price)
I have created a small howto about my currently preferred finger assembling.
Clean prints in your how to! What resolution do you print with?
Your requirement for drill bits is slightly smaller than mine, it varies pretty much according to your printers settings and filament supplier.
My printer is a Multec 300 and I print most everything with 0.1 mm layer and 2.85 mm filament.
After spending a lot of time with aceton slurry and removing/reattaching the print bed sheet I print now only PLA-HT on a “never have to change” printbed. The vertical surfaces tend to be a bit rough, I assume due to the fact that the Z-axis…[Read more]
Tried to create a arm rotcenterv2.scad file that allows for specifying your individual servo dimensions. From the OpenScad.scad file you can – after specifying your 5 measures in the script – render your individual 3d object and export it as .stl. In the script you will also find the instructions how to create the stl for the opposite side.
I will add it in the derivatives library
Oh please use the same licence cc-by-nc when posting remix of my parts, thanks
Hi Gael, for sure, did not pay attention to that. applied the cc-by-nc to all my InMoov parts. Will start work to make my omoplate holder variable too.
3d printing with ease
Please understand – I definitely do not want to create product placement in my blog – just let me tell you my InMoov printing difficulties.
I first thought ABS and badly failed, nothing sticked to my print bed. Then listening and reading many experts opinions I switched to PLA. I gladly agreed because nothing worked with ABS…[Read more]
A Perfect Print Bed is like the quest for Holy Grail. All infos about it are welcome.
What is the “rescue” material you finally use from mtplus?
I tried so many things and materials for the perfect printing bed before starting InMoov project. Blue tape, UhU glue on glass, Buildtak, Ninja Board, ABS slurry on acrylic, bakelite and so on. I use…[Read more]
I use a Velleman Vertex K8400 printer with an unheated glass bed with BuildTak. PLA sticks well to it. The BuildTak has to be replaced about once per month. I have never tested ABS. The printer has three fans to cool down the PLA. I have to use a lot of force to break any part. It they break, you may have to little infill or to thin walls. I use a…[Read more]
never seen BuildTak before but the web page promises exactly what I got with my material. I haven’t touched my printbed for 3 month’s now with printing times in average probably 3 hours/day.
It looks to be kept secret what material it is. It is also rather expensive but after having encountered so many problems I gave it a try (beside other materials) – and at least for me and my PLA-HT it works like a charm.
When I compare ABS prints with the PLA-HT the second is much more robust (like I can not brake the large lower arm parts…[Read more]
Buildtak didn’t work with ABS for me, I managed to nearly destroy the surface after the third print. ABS temperature is too high for the Buildtak and causes to scare the surface rapidly. I didn’t try with PLA. But I have seen very good results at various 3D print shows.
Replacement Servo for omoplate
After burning quite a few HS805BB I wanted to try another smaller servo which had interesting specs, the tgy-mg959 v2.
I have added the redesigned holster which maintains the geometry to thingiverse (look vor InMoov omoplate).
It should also work for rotate and shoulder and sure would look sharp on the robot.…[Read more]
Awesome good test and results! Thanks for sharing Juerg.
Definitely something usefull for to make the servos smaller. Speed seems to be the same as the HS805BB, what are the torque specs?
Thanks for your comment.
I bought it for the hobbyking statement 30kg/6v and 0.15s/6v for 60 deg. The servo I got is named v2, but you can also find other statements where only 15 kg are given. Do not know but performance looks to be acceptable and I am quite sure it could be good for other HS805 replacements. It is rather easy to change…[Read more]
Mats Önnerby uploaded a new picture: 20150906 002.JPG 1 year, 10 months ago
I had several ideas when I started to print the head. The large servo was more expensive than a small, so I tried to replace it with a standard size sero. I also wanted to mount a better camera in the head than a USB camera. My modified head contains a Raspberry PI 2 with a Raspberry Pi Camera module mounted in one of the eyes. It also contains…[Read more]
wooouu, setting the brain in the skull.
What sort of camera did you set in?
I tested my full InMoov with the Raspi2 and was a bit disapointed with latency. The Odroid U3 was also having latency…
Let us know your Rasp2 acts when you will be using speech recognition along with OpenCV tracking, so we can share comparison.
I use a Raspberry PI Camera module connected directly to the Raspberry CSI port. I has really good quality for still pictures and video stream is OK. I tried to use it with MRL and the OpenCV service, but I got some error messages. I will sort it out with the developers of MRL. Thay are all very nice, skilled and helpful people.
Others have tested the Raspi Camera module into MRL with success. Your errors might be related to which version of MRL you are using.
When I tested the camera with the Raspi2, I was using version 1.1.107 and it was working fine, though with latency.
Mats Önnerby uploaded a new picture: 20150910 017.JPG 1 year, 10 months ago
This is a part of the Bicep. I use PLA, and it's not as soft as ABS. So when I tried to mount them together, it was impossible, because it wouldn't flex. But PLA gets soft at relativley low temperatures, so I used a heatgun at a low setting to heat the connections. After heating the plastics for a short while, it was easy to mount them together.…[Read more]
Great idea, I’m sure this will a lot of builders using PLA!
I should add this suggestion in the tutorial for PLA users if it is okay with you.
Yes, please. The main reason for me to share my experences is to help other builders.
Mats Önnerby uploaded a new picture: 20150907 012.JPG 1 year, 10 months ago
Hand and forarm printed in black PLA. I use recessed M3 screws to hold it together. I drill a 3mm hole in the part to be mounted. In the part that it should be mounted to, I first drill a 2.3 mm hole and then I use a 3mm taps to make a thread. It's not easy to make the thread straigth by hand, so I mount it in a drill.The 8mm screws are made from…[Read more]
Tabing the holes really helps, it is what I also do. Unfortunately not everyone has this kind of tools.
Great work by the way!