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Rostock, Kossel, Simpson, 3DR, and more. See: http://reprap.org/wiki/Category:Delta. Previously named "Delta Robots and Stewart Platform"
Re: Don't calibrate, measure! SLIC3R - 10 years ago
QuoteSublime QuoteShadowRam How would you go about measuring your exact Nozzle size? Do you just extrude into air and measure the swell? No that would be the die swell size. I realize that, but could you not derive the nozzle size from the swell size? what factors affect swell size?by ShadowRam - General
Re: Don't calibrate, measure! SLIC3R - 10 years ago
How would you go about measuring your exact Nozzle size? Do you just extrude into air and measure the swell?by ShadowRam - General
Re: Ridges on circles - 10 years ago
What firmware are you using? It almost like the printer is stopping at each point along an arc.by ShadowRam - General
Re: Help me i'm stucked, as much as my steppers have done... - 10 years ago
The issue of them moving in only one direction is an ENDSTOP issue. You need to setup your endstops. The firmware is only allowing you to move the motors in one direction because they are not HOMED (the printer doesn't know where it is, and is trying to prevent you from colliding with something)by ShadowRam - General
Re: Slic3r not speeding up prints! - 10 years ago
Quotejamesdanielv read this: it will speed up marlin for you! replace the sqrt calculations with this and your performance with short lines will improve! if issues are not slow down from the cool feature. Interesting, Could you make better prints that showcase the differences better? I'm still not entirely sure what the benefit or your new sqrt function achieved in the final print.by ShadowRam - General
Re: Rubber drive wheel - 10 years ago
Quoteaduy someone should try making a drive that uses two flat rubber belts. the belts would run like a tread mill and the filament would be in between the two sets of belts. sorry for the crude drawing. you could use four timing pulleys and two small continous timing belts. I was thinking of a three gear system to help WORD OF CAUTION!!!! Filament slippage is good. It saves your hotend froby ShadowRam - General
Re: Please help me solve this - 10 years ago
What is the object suppose to be? What are your steps/mm for X and Y?by ShadowRam - Printing
Re: Short circuit - 10 years ago
The traces on your bed are exposed? What happened to the thermsistor? to monitor the bed temperature?by ShadowRam - General
Re: Slic3r trouble... printing diagonal - 10 years ago
Is your printer square?by ShadowRam - General
Re: Controller question - 10 years ago
RAMPS 1.4 yes It's right on the wiki http://reprap.org/wiki/File:Rampswire14.svgby ShadowRam - General
Re: Stepper drivers keep breaking. - 10 years ago
I installed my heatsinks like this http://www.shadowram.ca/?p=83 There's too much risk during installation that the heatsink may make contact with other parts of the board. I run some 2A NEMA 23's off these without issue.by ShadowRam - General
IPAnema - Parallel Cable Robot - 10 years ago
http://www.youtube.com/watch?v=RCa8uDFzbsw I happened to come along this, I found it interesting, especially the spool at 1:10 Might give a few people some idea's,by ShadowRam - Delta Machines
Arduino's Max Stepper Freq? - 10 years ago
What's the maximum step freq that the Mega can handle? Thanks,by ShadowRam - Controllers
Re: problem with steper motor - 10 years ago
Quotesince on x and y position its returning to the exact position i´m excluding a electronig problem since it is resuming from the same spot. and problem ocures not on the z axis. Wipe function perhaps? There's an option in slicers to have the extruder 'wipe' itself to remove oozingby ShadowRam - General
Re: What governs print quality - 10 years ago
Quotebobc So are you going to upload the contents of your photo album for every new user? You know, just in case they might want to see your printer. Can you think what happens if *everyone* does that? I've said before, the proper place for stock pictures is on a blog, and you can post a link to them. You do know how this forum works right? He's not uploading anything... He is linking to theby ShadowRam - General
Re: Making a huge 3D Printer! - 10 years ago
I have a large repstrap, There is no way in hell your design is going to work. If you are using any kind of rollers your boned, If you don't have your Y-Axis spread out enough from allowing your Z-Axis from wobbling around your boned, I'm using NEMA 23's. If you attempt to use NEMA 17's your boned. And to top it all off, your foot print is larger than mine, and mine is made from a profesby ShadowRam - Reprappers
Re: Extruder Retraction - 10 years ago
#define DEFAULT_MAX_FEEDRATE {500, 500, 5, 25} // (mm/sec) change that 25 to the max speed you want.by ShadowRam - Reprappers
Re: Magma Hot End assembly problems - 10 years ago
Another solution for people in the future, heat up the plate, and put the hotend in the fridge. Cool one piece and heat the other. Then slide them together at let them come to temperature. This is known as shrink fittingby ShadowRam - General
Re: extruder thickness - 10 years ago
Your 0.5 thinwall cube isn't suppose to be 0.5mm Your 0.5mm nozzle will have a default "extrude width" that will be bigger than 0.5mm Slic3r automatically set's this, and it's based off your layer height. So if you attempt to lower you E steps/mm to achieve 0.5mm when your width is suppose to be 0.8, you are now under-extruding and that's why your infill is all messed up. What layer height aby ShadowRam - General
Re: Help on choosing the right hot end - j-head vs. magma - 10 years ago
Quotetjb1 I've run quite a bit of PLA, ABS and PC through my E3D with no problems (besides the PC having too much moisture). I've even switched from ABS to PLA midprint to get a dual color print...materials are different because I wanted those colors and those were the materials I had the color in. The E3D one does seem to be less prone to problem compared to the others.by ShadowRam - General
Re: Help on choosing the right hot end - j-head vs. magma - 10 years ago
Ideally any design that has rapid thermal expansion, you want all the materials to be close/match in their expansion. So they expand together, and don't loosen up, stress other materials, or create gaps. But you are correct, that if you want to maintain a dimension over a range of temperatures, this is a good thing. But PLA (which is what we are working with) does not maintain it's dimension ovby ShadowRam - General
Re: Help on choosing the right hot end - j-head vs. magma - 10 years ago
ya know, I've just been reading up on some of the problems people have been having with All Metal Hotends and jaming, and I was trying to figure out why the J-Head has been so awesome with no problems. The Thermal Expansion of PTFE Liner is ~ 100 (x10-6/K) with a conductivity of 0.25 (W/m-K) The Thermal Expansion of PEEK is ~ 47 (x10-6/K) with a conductivity of 0.25 (W/m-K) Theby ShadowRam - General
Re: PLA, stainless steal and the nightmare it has caused me - 10 years ago
I'm confused, Is this a complicated procedure? due to such a small hole in stainless which is hard to machine? If there is a real need for this? Why hasn't some tried a single blast of a Laser or Water cutter with the right kerf?by ShadowRam - General
Re: Marlin Firmware Problem - 10 years ago
test the resistance of your thermistor with an ohm meter. report back what it is.by ShadowRam - General
Why is Infill related to Layer Height? - 10 years ago
I just did two prints. (Slic3r 1.0.0RC2) 0.4 layer height with 10% infill and 0.2 layer height with 10% infill The rectilinear infill for the 0.4 height is infill squares ~5mm The rectilinear infill for the 0.2 height is infill squares ~10mm Why would the slicer increase the infill like that just because the layer height changed? All other settings are identical, and parts are identical.by ShadowRam - General
Re: Marlin Firmware Problem - 10 years ago
What is the resistance of your Thermsistor not connected to anything?by ShadowRam - General
Re: Marlin Firmware Problem - 10 years ago
Your minimum temperature alarm has been set off. Change your configuration.h to these values. #define TEMP_SENSOR_0 1 #define TEMP_SENSOR_1 0 #define TEMP_SENSOR_2 0 #define TEMP_SENSOR_BED 1 #define HEATER_0_MINTEMP 5 #define HEATER_1_MINTEMP 0 #define HEATER_2_MINTEMP 0 #define BED_MINTEMP 5 This enables sensors for Extruder 1 and Bed. (Assuming 100k Thermisistor) And sets the minimum temby ShadowRam - General
Re: Prints randomly warping - 10 years ago
After seeing the kind of printer setup you have, it's probably something to do with the fact you have a CoreXY like setup. You also have some pretty beefy steppers there. Your drivers are probably overheating. You say they are at ~room temp. How are you measuring this?by ShadowRam - General
Re: J-head with ceramic body instead of PEEK - 10 years ago
I wonder if you could mold a brass nozzle into a piece of glass.by ShadowRam - General