Over the weekend I mainly focused on the electronics side of things, when I wait for the replacement parts for my makerbot and wait on recieving a shapeoko kit I recieved (should allow me to get some sheet materials cut for the build. Here's what I achieved:
• I have fully prototyped the electronics using two easydrivers, an arduino and two steppers (a nema 14 and nema 17). They are all moving as intended and seem to be powerful enough for the Z axis and tilt mechanisms.
• I have designed some sheet parts which will be used to create an enclosure and also mount components (the final result will be quite similar to the littleRP)
• I have sourced some 140mm Polystyrene Pitri dishes which should provide me with a large enough build area to get me started. I have 10, so this should give me an opportunity to test different coatings (or none at all) and give me time to design a flex vat if that is what I decide to use.
Hopefully my build isn't slowed down too much with my makerbot not working just now.
Statistics: Posted by DepthDesign3D — Mon Mar 23, 2015 3:56 am
]]>
I'm waiting on a lot of the components to be delivered, but do have a working Tilt axis and the majority of the frame assembled.
The next task should be to cut the sheet material for mounting everything to. Thinking about getting a shapeoko, if I do I'll hold off until I have it up and running.
Statistics: Posted by DepthDesign3D — Thu Mar 19, 2015 4:06 am
]]>
• I've assembled the main sections of the frame and have a tilting section all hinged up. Should have pictures later on.
• I just need to decide how I am going to mount a stepper motor or servo motor with cam for the tilt. I really want the tilting frame to return to a level position when not being forced by the cam, and have the cam push the frame down. This should allow me to guarentee that the plate returns to level every time and doesn't rely on an accurate motor placement/cam position.
• I've ordered a very similar Z axis to the little RP, with a Hiwin linear rail/carriage and a nema 17 stepper with Tr8*8 leadscrew. I just need to find an anti backlash nut which I can get in the UK for a reasonable price.
• I've decided to use an arduino UNO with one or two easydrivers, depending on if I use a stepper motor or servo motor for the tilt. I will also use a spare power supply which was too big for my foldarap build. I am not sure what firmware to go for yet. Purely depnds on which one looks to be the simplest to learn.
• I have been trying to source first/front surface mirrors in the UK but I am struggling to find reasonably priced suppliers.
• I have decided to go with the Acer P1500 projector. I like the fact it won't need any mods, as it means I could sell it and upgrade if I need to, and keep the warrenty intact.
Statistics: Posted by DepthDesign3D — Tue Mar 17, 2015 4:23 am
]]>
]]>
]]>
]]>
]]>
]]>
]]>