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Re: hot end temperature oscillations - 11 years ago

Looks like your PID loop is going into an unstable region. Try reading up on PID loop tuning...

by jeffegg2 - General

Re: 3dstuffmaker.com - opinions? - 11 years ago

Quotenechaus Is that part warped ? To me I got rid of most of that by doing this - retraction needs to be on and fine tuned to your setup - to hot, if the temp is to hot this can cause lots of ooze -reduce extrusion mutiplier maybe .90 keep going lower untill you have it set right. Do you have a fan blowing at ur prints ? If not try it out.. I just set up a fan directed at my Buda heatsink, i

by jeffegg2 - General

Re: 3dstuffmaker.com - opinions? - 11 years ago

Strings and gaps

by jeffegg2 - General

Re: Pro's and Con's of Delta printers? - 11 years ago

Wow! Godzilla Rostock!!!!

by jeffegg2 - Delta Machines

Re: Problem with piezo electeric- capacitive sensor - 11 years ago

You have to give us more information than that. What pizo? what is your circuit? Photos? circuit diagrams? Jeff.

by jeffegg2 - Developers

Re: Budaschnozzle Hot End (modified ) version overcome leakage problem - 11 years ago

My chinese buda was leaking as well. I took it apart, burned off the excess plastic, and cleaned the threads with a 10mm die. wrapped the crud out of it with teflon tape and the leaking stopped. Jeff.

by jeffegg2 - Reprappers

Re: extruder gets too hot after dropping a bolt (SMH) - 11 years ago

I don't see how the extruder temp is linked to the stepper driver..... but who knows.... Try changing the affected stepper driver and see if that helps... Jeff.

by jeffegg2 - Reprappers

Re: Wind Turbine Blades from a 3D Printer - 11 years ago

A 3d printer is too small for this... fiberglass coated foam board sounds the best. You just need to get the right shape. There is a new kind of plastic for airplane skin that replaces the old canvas/varnish. I would look into that for light weight. Perhaps a 3d printer for the spars? Would probably take a long bed, or make them in two pieces each. Jeff.

by jeffegg2 - General

Re: Solid layers aren't solid - 11 years ago

Quotelister6520 You just need to increase the amount of material extruded in the solid layers, or the filament is being laid down too far apart.. In the print settings tab find the 'Infill' entry in the extrusion width box. If it is not zero reduce the number by perhaps 20% for a start and see how it goes. The smaller you make the number the closer the strands will be laid down in the solid infi

by jeffegg2 - Reprappers

Re: 3dstuffmaker.com - opinions? - 11 years ago

Quotejeffegg2 Received the adapter tube. The 3mm x 2mm works for the 3mm to 1.75 conversion, but the hot end part is still 3mm. I have ordered some 3mm x 2mm brass tube to place into the hot end and see if that works out better. Some of the adapter photos show using the ptfe all the way to the tip. I can't see how the pla will melt using that method. I cut the ptfe where it enters the metal area,

by jeffegg2 - General

Re: Budaschnozzle Hot End (modified ) version overcome leakage problem - 11 years ago

Been working on my buda knock off. Came for 3mm and want to use 1.75. Added the 3OD/2ID ptfe tube and that was not enough.... kept jamming. So I got some 3mm brass tube, It now works to my satisfaction using 3mm ptfe and 3mm brass inserts.

by jeffegg2 - Reprappers

Re: 3dstuffmaker.com - opinions? - 11 years ago

Received the adapter tube. The 3mm x 2mm works for the 3mm to 1.75 conversion, but the hot end part is still 3mm. I have ordered some 3mm x 2mm brass tube to place into the hot end and see if that works out better. Some of the adapter photos show using the ptfe all the way to the tip. I can't see how the pla will melt using that method. I cut the ptfe where it enters the metal area, but now I get

by jeffegg2 - General

Re: Printer electronics tripping out my computer????? - 11 years ago

When I installed the stepper drivers backwards, it had that same affect, nothing but blocks on the lcd. The ramps was fine, but the arduino mega was toast..... Tried with a new Arduino mega and all was right (after correcly installing the stepper drivers...).

by jeffegg2 - Reprappers

Re: Printing ovals instead of circles! - 11 years ago

Looks like the parts are not tight and your head is shifting?

by jeffegg2 - Reprappers

Re: Software to control the motors - 11 years ago

Arduino uses C programming as well.

by jeffegg2 - Developers

Re: Software to control the motors - 11 years ago

You can use the arduino board along with some stepper drivers like A4988 to run the motors using the C in your arduino.

by jeffegg2 - Developers

Re: 3dstuffmaker.com - opinions? - 11 years ago

Ordered both 3mm/2mm and 3mm/1.5mm. If one of those works ill have some xtra.

by jeffegg2 - General

Re: What can i build with parts from old printers? - 11 years ago

Those are servo motors not steppers. I doubt that they are powerful enough to do much.

by jeffegg2 - General

Re: Calibrating heated bed and hot end temperature - 11 years ago

Just some black tape can be good for thermal imaging. Yes, different colors emit IR differently.

by jeffegg2 - Reprappers

Re: where to start building a custom printer - 11 years ago

I have seen youtube vids using ceramic and frosting based on the rostock delta, it seems to lend it self well to food printing. You would just need some type of controled extruder, like a shot meter. Good luck and keep us posted... Jeff.

by jeffegg2 - Developers

Re: Introducing the ramps 10 - "Ramps10" an open source multi-configurable stepper controller shield based on the Ramps 1.4 design. - 11 years ago

Was considering building something in the CNC class, like custom router table. These might be just the ticket.... Jeff.

by jeffegg2 - Developers

Re: 3dstuffmaker.com - opinions? - 11 years ago

Sure thing, waiting on adapter to use 1.75 filiment, and spending the time to dial in my bed calibration.... I also have on order some cooling fans that I have heard that I need for PLA with this hot end.

by jeffegg2 - General

Re: Help, software dont´t know where to look, any tutorials you know of stp by step?:¬) - 11 years ago

You don't need pronterface, or marlin, or any of that stuff to learn about the stepper driver boards.... There are tutorials out there for running the A4988 from your arduino mega. That is how I first played with/ learned about the drivers. is where I learned from. It is in english and italian. Jeff.

by jeffegg2 - General

Re: First completed calibration cube - 11 years ago

This seems to be a known problem with pla and the G3D V1.2 hotend leaking. The maker suggests using teflon tape to seal the threads before and after the heater. Jeff.

by jeffegg2 - Reprappers

Re: 3dstuffmaker.com - opinions? - 11 years ago

I could not catch them (lulzbot) with anything in stock, so I have the Buda G3D V2.0 from ebay chinese knock off. I am waiting on a tube to convert it to 1.75 filiment. When I hooked it up the crappy resistor fried right away, so after installing a new Ramps 1.4 board I installed a 40W ceramic heater into it. It is heating well, but I have not printed anything yet.

by jeffegg2 - General

Re: Rostock Calibration - 11 years ago

I'm having trouble figuring out EXACTLY what these measurments are... #define DELTA_SEGMENTS_PER_SECOND 160 // Center-to-center distance of the holes in the diagonal push rods. #define DELTA_DIAGONAL_ROD 250.0 // mm -------------------------------^^^--------------This one I understand. I used a fixture to make mine all 250. ----------------------------------------------------------------------

by jeffegg2 - Delta Machines

Re: RAMPS 1.4 w/ direct short of 5A circuit - 11 years ago

Yep, slow acting fuses they are. I smoked my first Ramps 1.4 board, burned a trace right in half. Bought a new Ramps board, then proceeded to try it out with the stepper drivers reversed... GACK! That fried the Arduino Mega. I replaced the burned up resistor that was in my Chinese Budaschnozzle hot end with a 40W ceramic, New Ramps, New Arduino, Almost there..... I also have a 4 gang auto fuses

by jeffegg2 - RAMPS Electronics

Re: Opto endstops and Marlin on Delta printer - 11 years ago

You are building a Delta, then why have you not uncommented out the #Define DELTA? Have you issued the M119 command to determine the status of your endstops?

by jeffegg2 - Sanguino(lolu)

Re: Joints for delta printer - 11 years ago

If it does not work, you can always revert back...... I say go for it!!

by jeffegg2 - Delta Machines

Re: Rostock Hotend? - 11 years ago

This is my first printer and I'm using a budaschnozzle style from the bay with .35 tip for pla 1.75. I'll let you know how it works.

by jeffegg2 - Delta Machines