ClearCaseMan
New Member
truly beautiful work. I look forward to more
Re: My Projects - T2 Endoarm
- Thread starter Jamster
- Start date
Endoskeleton
Well-Known Member
Jamie!!! Your arm is still king!!!
Ken
Ken
Why, thank you very much!!
Have ordered a few bits and bobs I need but dont think ill be doing anymore till the weekend. Probably work on drilling the holes in the knuckles for the cable and grub screws, and making the caps for the piston rods to go in the pivot points of the knuckles.
Have ordered a few bits and bobs I need but dont think ill be doing anymore till the weekend. Probably work on drilling the holes in the knuckles for the cable and grub screws, and making the caps for the piston rods to go in the pivot points of the knuckles.
Bit of an update. Made some parts to attach the fingers together, and did a bit of a test fit using some of the pulleys id previously made, and cup washers for the detail on the outside of the finger joints. Think these look pretty good but ill be looking to find/make something better at a later date. Have also been working on some of the hand piston parts.
I bought one off ebay. Was gonna make one initially based on the plans available online, but took the easy option!!
Done a few more bits. Drilled the holes for the cables. Had to reposition a couple of them as they seemed to be too close, or in the way of the ball joint plate, and the arm piston u joints. Had a spare knuckle that id previously drilled to accept the spring cable so had a bit of a test fit. The pistons are made up of a tube with end caps, so I can shorten the tube once I decide what size to make em. Also made a trial block to go on the strut. Gonna countersink the holes for the torque screws next.
Done a few more bits. Drilled the holes for the cables. Had to reposition a couple of them as they seemed to be too close, or in the way of the ball joint plate, and the arm piston u joints. Had a spare knuckle that id previously drilled to accept the spring cable so had a bit of a test fit. The pistons are made up of a tube with end caps, so I can shorten the tube once I decide what size to make em. Also made a trial block to go on the strut. Gonna countersink the holes for the torque screws next.
Thanks again, im quite pleased with how its turning out. Have countersunk the holes for the torque screws. The size off the heads of the torque screws on the left and right hands are different. I was able to obtain the size that matched the left hand. These are titanium screws made for aircraft I beleive. The screws started out life a bit thicker(see the middle of the three screws pictured) I turned them down and threaded them m4. Turning em was ok threading em was a b!tch. Managed to do six before my die gave up. Snapped a hacksaw blade cutting em down as well....
.I havent really messed around with stainless steel too much, other than boring out the watch case of the LALD buzz saw watch I made. That was very hard and I couldnt use the bits I have as they blunted too quick. Had to resort to a dremel attached to my vertical slide and grind it out. Took a fair while!!
Im using 3mm stainless steel rod for the piston rods. Had a trial turn down on a scrap peice as I plan to turn the ends down to 2mm to attach the hinges etc. Seemed ok. Im not a machinist or anything so pretty much make things up as I go along.
Im using 3mm stainless steel rod for the piston rods. Had a trial turn down on a scrap peice as I plan to turn the ends down to 2mm to attach the hinges etc. Seemed ok. Im not a machinist or anything so pretty much make things up as I go along.
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hi
been a long time since ive been on RPF but finally managed to finish the arm... not the full sized jobby but a 1/3rd scale (or thereabouts) version. For an idea of size the knuckles are 4.5mm thick with a 1mm thick pulley in between. the actual arm stands around 16cm tall excludding the base. Started out a s a bit of an experiment as to whether I caould machine the shroud on a lathe and carried on from there. Currently resides on my desk along with a same scale cpu holder.
been a long time since ive been on RPF but finally managed to finish the arm... not the full sized jobby but a 1/3rd scale (or thereabouts) version. For an idea of size the knuckles are 4.5mm thick with a 1mm thick pulley in between. the actual arm stands around 16cm tall excludding the base. Started out a s a bit of an experiment as to whether I caould machine the shroud on a lathe and carried on from there. Currently resides on my desk along with a same scale cpu holder.
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Finally figured out a simple way to do the detail on the fingertip and have built up a finger from some proto and reject bits and peices. Needs a few tweaks and not entirely happy with the clevis thing I made to connect the piston rod to the finger so gonna redo that I think, otherwise pretty happy wiv it.
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