Hi Josh, I just used all the same filament as your red crane the Bambu pla basic maroon red the screw for the cab was just really short I ended up drilling a hole threw the little hump and put a 3x16 up from the bottom of the cab it is holding just fine as for the screw on the bottom left corner I just left it stripped it that whole section that hold on the servo seems tight enough so not to worried about it. As for the worm gear servo I’m not sure what happen there the servo that came in the CyberBrick kit had a black end on it instead of the individual ones that where more like a whitish plastic color which those cinched up just fine.
The part about boom sections, I have assembled the gantry and it went together great no problems! I really have been watching those parts for sure with the BT2 screws. I am just barely snugging them and seems to be just right. It could easily be me but, I really am trying to be as delicate as possible. lol I am 6.2 so tiny screws are hard to cense some times. But overall this crane has been a blast and I freaking love it! Please don’t take my concerns as a negative or a dis. On this project because it really is great!
As for the walking motors, I was thinking (now that I have access to those adjustments) of limiting the end stops in the setting that will limit the max speed of the motors. It occurred to me that the winch gear ratio could be change by changing from 1:1 bevel gears to 2:1 or 3:1 by reducing the tooth size/pitch and ending up with something that looks like a ring gear and pinion from a differential. I would consider it possible within the constraints of the model. I would have a go in Onshape (if I may).
It’s no worries. I mainly just want to make sure the builds are coming together fine, and see if there’s any tweaks I need to make. Being my biggest project, with so many variables. It’s nerve racking, haha, but I’ve been loving seeing some of the first models come together.
It’s tough on the boom sections because the screw depths aren’t as deep, but I wanted to keep the profiles as slim as possible, to try and capture as much of the styling of the original boom sections as I could. You’ve gotta be delicate with it though, for sure. The boom sections I mostly do by hand, so I can be careful not to strip anything out.
One thing I’ve found is that different filament types, different printers (A1 vs X1 vs P1 vs H2D vs X2D, etc) do print slightly different. The tolerances are ever so different. It’s a little tough because I have to make sure the tolerances are going to work across the board. It’s much easier to balance when it’s a small model, haha. When I tweak the sizes on this thing, it’s multiple files, parts, I have to go through and check and tweak.
I’m planning on releasing a couple of step files for the model, for the motor/electronic boxes and the parts that house the motors for the tracks. I want to open it up for mods from others, for sure. I’ve been a little slow getting that together though!
I’ll have to order some more and see if they changed things on me.
Those freakin servos. They’re strong, but I’ve had some hurdles when integrating them.
G’day Josh, Yay STEP files! I started on a gear redesign for myself but STLs aren’t designed to work with, there are for a machine to follow to output the final product, so I was trying to design around them. Knowing the positions of the axis and the height above the deck (wall), actually the having the interface part of the gear would be extremely handy. I think the CAD program I use has a useful gear calculation app. I could try. I also has a collaboration ability.
Hi Josh, really enjoyed printing and assembling the crane . I was hoping you are able to help me with a schematic drawing of the rigging please? As I am having difficulty with this.
I’ll have to order some more and see if they changed things on me.