So will they sell you less than a metric ton? 1 kg nylon powder 139 euro?by cozmicray - Powder Printing and Selective Laser Sintering
I'll ask again Where are you getting powdered nylon / abs / pla to be used for your sinteringby cozmicray - Powder Printing and Selective Laser Sintering
Perhaps a read of the Core XY section? and The statements against independent driven screws on Z axis? Aluminum leadscrew? Only going to use it a little while huh? Perhaps a find on eBay instead of a retail leadscrew?by cozmicray - Mechanics
I would say that is NOT a build surface -- but just a heater. You need some type of flat plate -- to be heated by that heater. This heater should be mated to a aluminum tooling plate or piece of glass to be a build surface. Then a good straight edge (stainless steel rule) can show you the dips and hillsby cozmicray - General New Machines Topics
Please a photo of your drive system. Can't understand napkin drawing. How is it an independent X, Y system? "both motors control one axis and are independent." HUH? Each motor controls an axis and are independent? What does motor location have to do with part count? What firmware? What type of drive is selected in firmware? If an engineer can't communicate via clear words or drawings he wiby cozmicray - Developers
As said by old sage Digital Dentist work from inside out 13 x 13 build plate? Is there a 13 x 13 heater in your parts? a 13 x 13 aluminum tooling plate? some linear rails and slides also on BOM? 1" birch ply? -- must be outside US --- 7 ply birch plywood rare / expensive? How will you square and fasten your birch ply sides? Inserts or the hardware used to put together furniture may be goby cozmicray - CoreXY Machines
I don't know where this sheet metal is? Grind down the nut 3MM? Print up zero backlash nut that fits? Guide should take all the forces, leadscrew just a mover?by cozmicray - CNC Routers, Mills, and Hybrid RepRapping
A printed block fastened to the linear rail trolley would work nicely to capture nut?by cozmicray - CNC Routers, Mills, and Hybrid RepRapping
Why not get driver from DTR? If they don't sell compatable drivers then they can't be very good 8A blackbuck 8 amp, modulation input, thermal cut off -- sounds good?by cozmicray - Laser Cutter Working Group
In first post - he has linear rail? What is wrong with that rail? Mounting on extrusion can be done? T-nuts --- plastic or metal insert in extrusion to hold linear rail? Hey if your going to mill --- high forces on everything!!!!by cozmicray - CNC Routers, Mills, and Hybrid RepRapping
DD always has good ideas work from inside out size of bed ? Where will you be getting heaters for bed? Do you have a small nuclear reactor to power them? support -- 1.5m axis will sag? (1000 + mech room?) belts -- long belts twist turn stretch? mount for 5000m spool of filament? Big prints lots of feed? big task for FIRST printerby cozmicray - General
Hard for me to understand how this cast plastic trolley is better than a circulating ball rider on a steel rail? Your motor will expend all torque just over coming friction What lube is good for plastic on aluminum? Leadscrew to rail spacing could have been made to work.by cozmicray - CNC Routers, Mills, and Hybrid RepRapping
Corrugated Cardboardby cozmicray - Laser Cutter Working Group
Folgertech FT-5 You will spend more than $500 on parts Then Mod the FT-5 to suitby cozmicray - General
Your X, Y mechanism is somewhat like a drafting parallel rule system and insanity How does this system lend itself to high speed? This is a unique system and you have no heritage or other like systems to rely on. Does Marlin / Repetire firmware support this system? It appears that a pure Y move requires X system to move just to keep it stationary? Looks like paramount requirement is to keep motby cozmicray - Developers
DD "I don't see any point in building a 3D printer yourself if you don't bother correcting the design errors commonly found in kits (and assembled printers). It's a lot easier and cheaper to just buy a kit and accept whatever stupid design choices the kit maker made to minimize cost." It's called unencumbered by thought process - or anybody's else though process and lately "the rule" not the eby cozmicray - Developers
Really need some info? What controller? What firmware in controller? What filament, PLA, ABS? What printer control software on PC? Pronterface, Repetier-host Cura is a slicer? With about 100000 configurations Did you level bed and set nozzle height? Time for the "3D printing for dummies" or read the hictop 3DP-11 Prusa i3 instructions or HicTop site or HICTOP Prusa I3 3D Desktop 129 Quesby cozmicray - Reprappers
X, Y, Z Drive configuration? Core XY? Belt X over Y? How long the belt? Complete belt failure or just wear? perhaps "non-use " degradation Perhaps un-tension while not in use Perhaps accept belts need to be replaced every 100000 hours? How often do you inspect / replace the belts on your car?by cozmicray - General
Your controller needs firmware. Marlin or repetier firmware and configuration and Pin Assignments When in doubt you could read the Folgertech Pusa 2020 I3 instructions or use the folgertech forumby cozmicray - RAMPS Electronics
Shortski13 sez "based on the parts I have at hand" route wood and maybe aluminum Right away ---- buy this buy that, don't use belts, Shapeoko is crap Got to have titanium, expensive leadscrews, linear rails WHAT? See use that broom handle, that guzunda, the hose clamp build with what is at hand?by cozmicray - CNC Routers, Mills, and Hybrid RepRapping
Please read thread Digital Dentist know the subject well? How many printers designed and built in 4 years? Mechanical engineering -- what year, school? If you want to engineer this: (this is what any system engineered project would do) Needs, purpose, wants (concept of Operation) Requirements (include cost) (speed, accuracy, resolution, operation, maintenance, risk, life cycle) Requireby cozmicray - Developers
What kind of drive? How many moving hours on belts?by cozmicray - General
The Y carriage on my Shapeoko is 160mm So 160mm times 2 off 1500 mm ---- your travel will be at best 1180mm I suppose a 1m build area OK? 1m span --- hope you have some hefty stock to support the rails?by cozmicray - CNC Routers, Mills, and Hybrid RepRapping
Your build is the two extremes in design Laser -- no cutting forces on mechanics Z axis not necessary mill --- extreme forces on the mechanics Z axis important My plan is to build a frame with a dual X-gantry: How will you "switch" gantries?by cozmicray - CNC Routers, Mills, and Hybrid RepRapping
If the probability of hotend hitting an obstacle is high perhaps you should home the extruder prior to starting new layer perhaps the layer misalignment mechanism lies elsewhere?by cozmicray - Firmware - Marlin
Perhaps this should be titled "very expensive British build" Confounds me how a $21 USD item becomes $130 (100 pound) in UK They make sure you don't use anything outside the island? but The proper UK linear slides should thrill the Queen? £99.00 with the £500.00 Economy Delivery (used Rolls Royce) Where is the linear rail production factory located in the UK? Alternative V railby cozmicray - CNC Routers, Mills, and Hybrid RepRapping
Ink jet printers have obtained super resolution by using linear encoders Optical strips on axis read by sensors provide very accurate measurement So even though you sense that the position is in error what will you do when the hot polymer has all ready shot out the extruder? encoder resolution and stepper resolution? will you be able to control to get better resolution? Chasing unobtainium?by cozmicray - Firmware - Marlin
FWIW Shapeoko 2 having 4 two bearing V rollers with eccentric bolt mounts on each Y carriage and 8 two bearing V rollers on Y axis carriage -- with the wide spacing of rollers there is no slop in the movement I have routed hardwood, Aluminum with no problem a 1 m makerslide can be had for $21 Z tilt (Y-Z plane) twist of the gantry, Spindle and cutters most problematic. but shapeoko 3by cozmicray - CNC Routers, Mills, and Hybrid RepRapping
See Shapeoko forumby cozmicray - CNC Routers, Mills, and Hybrid RepRapping
See wiring From left to right, wire all of the stepper motor's wires as red, blue, green, and black or red, green, yellow, blue into the pins next to the Pololus .by cozmicray - RAMPS Electronics