Thor & Ironman (arm construction costume pg.8)
- Thread starter MightyJohn
- Start date
knowledgebtrue
New Member
Re: Thor & Ironman (Helmet Video pg.5)
I am stumped with this pull up resistor thing for the pololu. any thoughts? and if i need them, where can i get it.
I am stumped with this pull up resistor thing for the pololu. any thoughts? and if i need them, where can i get it.
MightyJohn
Active Member
Re: Thor & Ironman (Helmet Video pg.5)
Thanks! I got mine online from Hobby King. I used the Tower Pro 9805bb. The specs are on the hobby king website.
A pull-up resistor is a term used for saying, 'put the resistor on the "hot" side of the switch. So, a pull-up resistor is just a normal resistor.
Thanks! I got mine online from Hobby King. I used the Tower Pro 9805bb. The specs are on the hobby king website.
A pull-up resistor is a term used for saying, 'put the resistor on the "hot" side of the switch. So, a pull-up resistor is just a normal resistor.
knowledgebtrue
New Member
Re: Thor & Ironman (Helmet Video pg.5)
I thought this observation would be of some good use. I suck at using smooth cast, I can never get it even or perfect. So I asked the sculptor at the sculpt supply store, he told me of this product called Shell Shock by smooth on. It is a Poly Urethane Plastic like smooth cast however its viscosity is thicker and allows you to brush it on evenly instead of moving the mold around to get, or in my case try, an even coat with smooth cast. I have to say It came out FLAWLESS compared to my smooth cast attempts.
Pros:
- Requires less material to get an even coat all over
- 2 layers are more than enough to get you a strong cast
- You waste less excess of materials i.e. No dripping or leaking like SC
- Once curing begins you can press it in with your fingers (gloved) to get tiny and cramped places in molds.
- Works very well with Fiberglass Matt or Mesh for extra strength
- Costs pretty much the same as smooth cast ($5 more)
Cons;
- 3 minute working time SOLID VERY QUICK
- Has to be mixed in small amounts due to quick curing
- Uses a 1:4 mix ratio instead of 1:1 like SC
- First layer is VERY fragile and can crack if miss handled before next layer.
Note: I used a fiber glass mat on top of the first layer and it gave it incredible strength compared to my first attempt with out the mat
Hope this was a good observation for you guys.
Mighty John you rock!
I thought this observation would be of some good use. I suck at using smooth cast, I can never get it even or perfect. So I asked the sculptor at the sculpt supply store, he told me of this product called Shell Shock by smooth on. It is a Poly Urethane Plastic like smooth cast however its viscosity is thicker and allows you to brush it on evenly instead of moving the mold around to get, or in my case try, an even coat with smooth cast. I have to say It came out FLAWLESS compared to my smooth cast attempts.
Pros:
- Requires less material to get an even coat all over
- 2 layers are more than enough to get you a strong cast
- You waste less excess of materials i.e. No dripping or leaking like SC
- Once curing begins you can press it in with your fingers (gloved) to get tiny and cramped places in molds.
- Works very well with Fiberglass Matt or Mesh for extra strength
- Costs pretty much the same as smooth cast ($5 more)
Cons;
- 3 minute working time SOLID VERY QUICK
- Has to be mixed in small amounts due to quick curing
- Uses a 1:4 mix ratio instead of 1:1 like SC
- First layer is VERY fragile and can crack if miss handled before next layer.
Note: I used a fiber glass mat on top of the first layer and it gave it incredible strength compared to my first attempt with out the mat
Hope this was a good observation for you guys.
Mighty John you rock!
dayspringxo
New Member
What do use use to coat and smooth the project with? I always get stuck at this stage and ruin projects.
MightyJohn
Active Member
Re: Thor & Ironman (Helmet Video pg.5)
Are you talking about final paint or what to do after pep and fiberglass?
Paint: I use an automotive primer (grey) then several layers of automotive paint.
After Fiberglass: I use layers of joint compound and sand with 320 grit sandpaper to smooth the helmet.
Are you talking about final paint or what to do after pep and fiberglass?
Paint: I use an automotive primer (grey) then several layers of automotive paint.
After Fiberglass: I use layers of joint compound and sand with 320 grit sandpaper to smooth the helmet.
Last edited:
kayo00
Member
Re: Thor & Ironman (Helmet Video pg.5)
Hi John!
here the video of my helmet with your hinge!
i put servo in different place,and work fine!
thanks a lot to make that real!
Apertura meccanica Casco Iron Man - YouTube
Hi John!
here the video of my helmet with your hinge!
i put servo in different place,and work fine!
thanks a lot to make that real!
Apertura meccanica Casco Iron Man - YouTube
MightyJohn
Active Member
mizuno hadouken
Well-Known Member
Re: Thor & Ironman (Helmet Video pg.5)
That's sick. Did you use the same method with the push rods for the motion? Where did you put the servos?
That's sick. Did you use the same method with the push rods for the motion? Where did you put the servos?
mizuno hadouken
Well-Known Member
Re: Thor & Ironman (Helmet Video pg.5)
Mighty... which polulu did you use? I saw a few different choices on their website
Mighty... which polulu did you use? I saw a few different choices on their website
MightyJohn
Active Member
Re: Thor & Ironman (Helmet Video pg.5)
This one:
Pololu - Micro Maestro 6-Channel USB Servo Controller (Assembled)
This one:
Pololu - Micro Maestro 6-Channel USB Servo Controller (Assembled)
mizuno hadouken
Well-Known Member
Re: Thor & Ironman (Helmet Video pg.5)
Thank you sir! Got my hinges installed in my helmet (took me like 16 hours!) a few weeks ago and I think they're ready for the electronics now.
Thank you sir! Got my hinges installed in my helmet (took me like 16 hours!) a few weeks ago and I think they're ready for the electronics now.
justinbauler
Well-Known Member
Re: Thor & Ironman (Helmet Video pg.5)
where can one pick up hinges for the helmets?
where can one pick up hinges for the helmets?
aron42486
Well-Known Member
Re: Thor & Ironman (Helmet Video pg.5)
Right here Justin: http://www.therpf.com/f13/ironman-helmet-hinge-installation-guide-118736/
Check it out and just PM MightyJohn if you are interested in purchasing the guide
Right here Justin: http://www.therpf.com/f13/ironman-helmet-hinge-installation-guide-118736/
Check it out and just PM MightyJohn if you are interested in purchasing the guide
MightyJohn
Active Member
Re: Thor & Ironman (Helmet Video pg.5)
Yea, the first time is a doozy! But it's better to take your time and get them right, then to fly through it and have them not work properly. I've installed 3 sets now, and I still can't get them done in under 8 hours!:lol
Can't wait to see yours in action, too!!
I believe aron42486 answered this for you
Thanks for the help, aron42486!!
Yea, the first time is a doozy! But it's better to take your time and get them right, then to fly through it and have them not work properly. I've installed 3 sets now, and I still can't get them done in under 8 hours!:lol
Can't wait to see yours in action, too!!
I believe aron42486 answered this for you
Thanks for the help, aron42486!!
kayo00
Member
Re: Thor & Ironman (Helmet Video pg.5)
thanks man! :cool
hi mizuno! thanks! :cool
yes i use the same method use john,I just changed the location of the servo, John has put them behind the head,and I placed them on the forehead.
thanks man! :cool
hi mizuno! thanks! :cool
yes i use the same method use john,I just changed the location of the servo, John has put them behind the head,and I placed them on the forehead.
MightyJohn
Active Member
Re: Thor & Ironman (Helmet Video pg.5)
I don't understand. To me, the forehead would be on the faceplate. Is that so, or did you mount them in the top of the dome. Did you use the 20kg servos or did you go smaller?
Thank you. It's been a fun project.
Update:
I picked up my '30 pack' order of laser cut hinges today. I ordered them to replace my 3mm Sintra hinges, so they are thicker then they need to be. With a set of pliers, I bent them to fit my helmet just fine. I just swapped out my old Sintra hinges (verson 1.1) for the new ones. They work beautiful and no way of breaking!!
thanks man! :cool
hi mizuno! thanks! :cool
yes i use the same method use john,I just changed the location of the servo, John has put them behind the head,and I placed them on the forehead.
I don't understand. To me, the forehead would be on the faceplate. Is that so, or did you mount them in the top of the dome. Did you use the 20kg servos or did you go smaller?
Thank you. It's been a fun project.
Update:
I picked up my '30 pack' order of laser cut hinges today. I ordered them to replace my 3mm Sintra hinges, so they are thicker then they need to be. With a set of pliers, I bent them to fit my helmet just fine. I just swapped out my old Sintra hinges (verson 1.1) for the new ones. They work beautiful and no way of breaking!!
MightyJohn
Active Member
Re: Thor & Ironman (Helmet Video pg.5)
I built an eye frame for my first "standard size" helmet, today. So, now they both have eye frames. I also built a servo controller housing for the pololu. I made it so you can plug your helmet into a USB without removing any parts. They are both being molded right now. I'll get some pics up once I cast them.
I built an eye frame for my first "standard size" helmet, today. So, now they both have eye frames. I also built a servo controller housing for the pololu. I made it so you can plug your helmet into a USB without removing any parts. They are both being molded right now. I'll get some pics up once I cast them.
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