I had significant cleanout to do in the pockets for the nuts and it’s a lot more difficult to do this once everything is assembled. If this is something that is expected for every assembly I think it should be mentioned much earlier in the process before the effector is assembled to any other components. Better yet, I think it should be addressed in the part design so it isn’t an ongoing issue (SLS material choice could also help out with this by switching away from the EX material to something like the standard PA).
Aligning the tops of the gears was a little fiddly because the allen wrench used to tighten the set screw wanted to lift up the acetal gear which set a new datum to align to. Maybe future versions of the effector could include a designated access hole for the allen wrench so as to not interfere with the acetal gear while trying to get the two flush with each other.
I second the above comment, the orientation noted appears incorrect. Looking further down to Step 8, it appears that the motor connector is oriented toward the right, relative to the picture shown above in Step 4 (which would echo what Mike ended up doing).
Initially, I was thrilled that these parts were SLS parts but I have to say I was a little disappointed when I unpacked them because they seem to be made of the Duraform EX, a 3D Systems material (or the like) which, in my experience, is a relatively soft SLS material. The only scenarios I have found it to be useful for are somewhat flexible parts and living hinges with some appreciable life. Personally, I would have liked to have seen these made of the basic straight nylon (I think it’s Duraform PA). Unfortunately I think it only comes in white, though, and my guess is that one of the reasons for choosing the current material is because it is black.
Be sure to clean out any residual powder left in the bottom of the pockets for the nuts. This really bit me on 2 of the 3 parts I received. The first one was off enough to begin cross threading and before I knew it, I had the nut spinning in the pocket… Which became a bear to get back out because the design doesn’t lend itself to any means of grabbing onto the nut.
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If the fit is that tight, they could be a light press operation before beginning assembly and they will stay in place throughout the assembly process.
I had significant cleanout to do in the pockets for the nuts and it’s a lot more difficult to do this once everything is assembled. If this is something that is expected for every assembly I think it should be mentioned much earlier in the process before the effector is assembled to any other components. Better yet, I think it should be addressed in the part design so it isn’t an ongoing issue (SLS material choice could also help out with this by switching away from the EX material to something like the standard PA).
Aligning the tops of the gears was a little fiddly because the allen wrench used to tighten the set screw wanted to lift up the acetal gear which set a new datum to align to. Maybe future versions of the effector could include a designated access hole for the allen wrench so as to not interfere with the acetal gear while trying to get the two flush with each other.
I second the above comment, the orientation noted appears incorrect. Looking further down to Step 8, it appears that the motor connector is oriented toward the right, relative to the picture shown above in Step 4 (which would echo what Mike ended up doing).
Initially, I was thrilled that these parts were SLS parts but I have to say I was a little disappointed when I unpacked them because they seem to be made of the Duraform EX, a 3D Systems material (or the like) which, in my experience, is a relatively soft SLS material. The only scenarios I have found it to be useful for are somewhat flexible parts and living hinges with some appreciable life. Personally, I would have liked to have seen these made of the basic straight nylon (I think it’s Duraform PA). Unfortunately I think it only comes in white, though, and my guess is that one of the reasons for choosing the current material is because it is black.
Be sure to clean out any residual powder left in the bottom of the pockets for the nuts. This really bit me on 2 of the 3 parts I received. The first one was off enough to begin cross threading and before I knew it, I had the nut spinning in the pocket… Which became a bear to get back out because the design doesn’t lend itself to any means of grabbing onto the nut.