Project "Deep Thought"

[cropwell]

Question 1 - I am a bit confused with regards to this design section, i intend to use two Y axis motors to provide much greater stability and to reduce the "racking" i think it is called or the gantry pulling or twisting that could be encountered on a single centered ball screw. Accepting that having two stepper motors increases the cost and increases the complexity of the build slightly, as well as needing to calibrate them occasionally as i understand it two is overall more beneficial that one (part A question is my thinking correct here?).

You haven't mentioned the size of the beast. If it isnt too large the received wisdom is to use a bigger stepper and a belt to drive the two Y screws. This avoids racking and sync problems.

My agolopies if there are typos, but it it Sunday night and two stonking G&T's and a glass or three of a very robust red wine (Batturica from LIDL) have mellowed my typing skillll;s.

Rob

[Sherpa]

Hi Rob - thanks for that added bed dimensions 630 X 1000mm - just watched a good video too on ball screws so that is sort of falling in place

[magicniner]

From the project name I assume it incorporates 42 of something?
;-)

[Sherpa]

Ok making some progress now fixed issue with rails being exposed with a bed overhang - read allot about ball screws so going to tackle that next - feel the learning curve is huge and keep going back to the design and tweaking, feel like this is never going to get finished . And as i type this i am thinking i have no cable tracks (are they called "energy rails") so another snag added to my list!!



Sherpa

[cropwell]

Energy Chains also known as Power Chain, Drag Chain & Cable Chains

[Sherpa]

Well final update on this thread because ... A) just figured out posted in wrong place and B) Gone back to the drawing board so the original design brief has changed so will do it all again once my plans are complete.

So today i spent time in the workshop getting things tidy again and man it is lick the floor clean in there now lol !!!


New post should be up in the Build Log section by the end of the week :)

Speak soon

Sherpa