Mechanics :
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Discuss any sort of mechanical stuff here: positioning systems, gears, extruding methods, etc.
the cut-out in the thick sheet for Mendel?
Posted by:
pica
()
Date: November 01, 2009 07:28AM
[objects.reprap.org] (big picture of Mendel)
There's a notch in the bed table, like it was a clearance cut for a stepper or something, but I can't see why it's there.
Sorry for all the questions, but I'll be attempting a RepStrap and I'll have to translate the design decisions over to wise choices in my material of choice.
I'm probably going to go with a scaled up version of Mendel, using angle iron as the structural supports, and probably a different (SAE) pitch for the Z lead-screws. Extra torque and higher voltage stepper motors with 200 step per revolution. A router for the first toolhead (I plan on some light milling). Oh and relocating the controller boards up top and making a few other design choices so I could retrofit a liquid coolant system later.
There's a notch in the bed table, like it was a clearance cut for a stepper or something, but I can't see why it's there.
Sorry for all the questions, but I'll be attempting a RepStrap and I'll have to translate the design decisions over to wise choices in my material of choice.
I'm probably going to go with a scaled up version of Mendel, using angle iron as the structural supports, and probably a different (SAE) pitch for the Z lead-screws. Extra torque and higher voltage stepper motors with 200 step per revolution. A router for the first toolhead (I plan on some light milling). Oh and relocating the controller boards up top and making a few other design choices so I could retrofit a liquid coolant system later.
Re: the cut-out in the thick sheet for Mendel?
Posted by:
Grogyan
()
Date: November 01, 2009 09:24AM
The notch in the table is for nozzle cleaning
Re: the cut-out in the thick sheet for Mendel?
Posted by:
pica
()
Date: November 01, 2009 09:43AM
How does cleaning the nozzle work? Is this just a place to squirt extra plastic or is there an add-on somewhat like a precisely placed upturned pin that Mendel can move over to and clean out the extruder under automatic control?