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fabricademy2017:students:angela.barbour:week_11._soft_robotics [2018/02/20 23:03] angelabarbour [Constructing a Soft Gripper] |
fabricademy2017:students:angela.barbour:week_11._soft_robotics [2018/03/23 02:18] angelabarbour |
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==== 02. Constructing the Mold ==== | ==== 02. Constructing the Mold ==== | ||
- | == a. Cut the cardboard == | + | === a. Cut the cardboard === |
6 pieces 6,3 x 1,3 cm | 6 pieces 6,3 x 1,3 cm | ||
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2 pieces 23 x 23 cm | 2 pieces 23 x 23 cm | ||
- | == b. Mounting the mold == | + | === b. Mounting the mold === |
Wrap the each two pieces from 6,3 x 1,3 cm together with the tape. | Wrap the each two pieces from 6,3 x 1,3 cm together with the tape. | ||
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- | == b. Filling the mold == | + | ==== 03. Filling the mold ==== |
Prepare the Silicone Rubber, mixing the catalizer With the silicone rubber solution in the proportion indicate for the manufacturer. | Prepare the Silicone Rubber, mixing the catalizer With the silicone rubber solution in the proportion indicate for the manufacturer. | ||
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- | == c. Unmold and Joining the two pieces == | + | ==== 04. Unmold and Joining the two pieces ==== |
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- | == d. Installing the air system and Testing == | + | ==== 05. Installing the air system and Testing ==== |
After everything is completlly dried, repair the edges, and cut the burrs, so the piece is as uniform us much as possible. | After everything is completlly dried, repair the edges, and cut the burrs, so the piece is as uniform us much as possible. | ||
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- | == e. Problems == | + | ==== 06. Problems ==== |
I have some problems, that were: | I have some problems, that were: | ||
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{{ :fabricademy2017:students:angela.barbour:05_problems.jpg |}} | {{ :fabricademy2017:students:angela.barbour:05_problems.jpg |}} | ||
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+ | ==== 07. Trying Again ==== | ||
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+ | I made everything again, this time trying to make the gripper thinner. | ||
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+ | 01. After constructing another gripper, I saw tht it was slightly curving with the pressure of the botle with air. | ||
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+ | 02. So I covered with the curling ribbon as indicated in the tutorial. | ||
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+ | 03. At this time I've seen that at the entrance of the poliestireno tube to the gruipper, it was a air leakage, so I have to unwrap the Gripper to fix this problem, with more fresh prepared silicone rubber. | ||
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+ | 04. Now it seemed to be ok, so I let it dry very well, and tryed to push with the air botle bomb, but the curve produced was not enough to make the Gripper woks. | ||
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+ | {{ :fabricademy2017:students:angela.barbour:grippergarrafa.jpg |}} | ||
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+ | 05. So I decided to push the air with the compressor, but I was afraid that the structure was not strong enough. | ||
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+ | 06. It seems to be ok, after some attempts finally I could pick up and raise the orange. | ||
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+ | {{ :fabricademy2017:students:angela.barbour:laranja.jpg |}} | ||
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+ | 07. But after only a few seconds, the pressure broke the silicone, and the orange dropped down. | ||
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+ | Well, I'm happy that I could achieve the challenge, and pick the orange up, but rhis material really isn't the best to make this experiment. | ||
+ | The entrance of the poliestireno tube was too fragile ! And the adhesion of the tubo to the silicone ws not the best. | ||
+ | I really use exactly the same tube they use in the tutorial, but I think it would be better if I had used silicone tube. | ||
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+ | 08. Also , next time I will insert the tube when doing the silicone, because the imperfections around the tube hole, was what caused the almost explosion of the Gripper, opening a big hole like a knife cut. | ||
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+ | {{ :fabricademy2017:students:angela.barbour:dano.jpg |}} | ||
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+ | But it was incredible useful doing all these attempts, because I could expience very much the silicone, the air pressure, and many details involved in the whole process. | ||
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