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Chris Warburton posted an update in the group
RepRap: 1 year, 5 months ago · updated 1 year, 5 months ago · ViewJust to let the group know, I’ve now got a full time job with ocProducts, so the RepRap will have to move on to something of a backburner. I can’t make it to the lab now, but John doesn’t mind the machine moving temporarily, eg. to the gist lab or access space, if it’ll get working quicker (eg. via some evening tinkering by the RepRap & Shacknet people). We’ll have to sort such an arrangement out properly with John first though.
The RepRap itself, as Andy said, is pretty near completion. The Z axis is playing up (it’s been dodgy since the start), which will either need a simple tightening/lubricating/gluing/etc. which is just a matter of figuring out where; or else it may all be misaligned and need some hardcore tinkering. If Andy made it into the lab today then he’ll probably be able to give a much better estimate on this (he might’ve even got it running smoothly
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Yup spent the day with it yesterday. The Design of The Darwin Z axis is such that it nicely summs up all the friction of the four lift posts and dumps it on the one stepper motor. I realigned the frame and be yesterday and adjusted some of the tension out of the anti backlash spring assemblies. It seems to run a lot better now but is still in need of more friction reduction before it will be fit to print. It misses steps at low speeds. (may be possible to nudge the current up a little too).
Tidyed up the wiring etc too and secured the conduits.
All in all asuccesful day definite stpe change in the right direction but not yewt quite ready to pring. I will be going back next week for a nother day at it. Taking some lighter springs/spacers and some super glue to thread lock some of the more troublesome fasteners. Hopefuly soon it will be good to go.
Gratz on the job!