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http://reprap.org/wiki/Smartrap_mini A new printer near first release, still in development ... Its main goals are ease/speed of assembly, low cost and modularity (being an easy basement for new designs).
Re: How precise can your Smartrap print? - Alignment issues - 12 years ago
Thanks for sharing this, CellJeffe! So, even the skew can be compensated. I t think even the most poorly aligned printer will be capable of great prints! I'm not an expert programmer but I really want to understand how it does it. If you don't mind, would you be able to explain it? Or you could just point me to some references maybe? Thanks again!by MelT - Smart_Rap
Re: Madmike8's Smartrap Build - 12 years ago
Yeah, I would think so, Reg. I only have one printer so I can't really tell. But if you are using a lot of LCDs and everything else is the same (same brand, same firmware, same type of knob, etc.), and some of them work backwards, then I would think it may have to do with the way it was wired. Some high-end LCDs may even have it's own firmware for controling the brightness and stuff that theby MelT - Smart_Rap
Re: Madmike8's Smartrap Build - 12 years ago
Quoteregpye QuoteMelT Oh I was able to fix it. Just swap the pins for the encoder in pins.h I can't believe it took me so long to figure out. Hey that can't be right! that's too easy ha..ha.. Problem is that I have a few machines and some are CW and others ACW, Be nice if I could just swap some physical pins and fix them. If you mean a fix that won't require re-uploading of firmware, I am sby MelT - Smart_Rap
Re: Madmike8's Smartrap Build - 12 years ago
I posted it on my blog in case you're interested...by MelT - Smart_Rap
Re: Madmike8's Smartrap Build - 12 years ago
Oh I was able to fix it. Just swap the pins for the encoder in pins.h I can't believe it took me so long to figure out.by MelT - Smart_Rap
Re: How fast can your smartrap print? - 12 years ago
Finally, I was able to try a PLA filament that flows well even at just 210 degrees! It's only this gray (or silver) filament that is different from the rest. With this filament, I can go 100mm/s easy. Maybe there's something about the pigment that causes is to melt easily. Too bad I only have 150grams of it leftby MelT - Smart_Rap
Re: Madmike8's Smartrap Build - 12 years ago
Quoteregpye QuoteBackEMF Would be nice if there was a Inkscape extension for RAMPS and 2D (2.5D) control. Is it still possible to run Marlin on an Arduino Uno or has Marlin gained to much code weight for that? I have looked into the LCD code if there is a way to change the rotary encoder direction , for some parts of the menu it feels odd when turning to the right it lowers the values... (is thby MelT - Smart_Rap
Re: Mark Stephen's Smartrap Build - 12 years ago
That's crazy! Who would believe that came out of a smartrap? LOL! Congrats!by MelT - Smart_Rap
Re: Mark Stephen's Smartrap Build - 12 years ago
Lookin great! Thanks for the pic! So, was there anything else that needed to be changed in the firmware to get your second extruder working?by MelT - Smart_Rap
Re: Any adaption for M8/TR8 threated rods? - 12 years ago
Umm, if you mean threaded rod for the z axis, I believe that should work as long as you calibrate it. I couldn't find a 5mm threaded rod so I used a 5/16" thread. No problem so far.by MelT - Smart_Rap
Re: Mark Stephen's Smartrap Build - 12 years ago
Been waiting for this. Can't wait to see it print! As they say...two heads are better than one. LOL!by MelT - Smart_Rap
Re: What do you use your SmartRap for mainly? - 12 years ago
Wow! Are you planning to take over the whole 3D printer business?by MelT - Smart_Rap
Re: Solarprism s' SmartRap 0.46 build J head - 12 years ago
Nice build! I bought the same cheap 0.3 hotend and it was just waaaaaaay toooooo slooooow to print with. I ended up drilling the nozzle with a 0.5mm drill I discovered accidentally while at the electronics store. I would have gone for a 0.4 but they only had 0.5mm. This, and a geared extruder, I can reliably reach 80mm/s infill depending on the filament. Others go even more than double thatby MelT - Smart_Rap
Re: New to 3d printing with smartrap need some help - 12 years ago
I believe 4.9 is the most recent released version I looked what ubis hot end looks like and it seems a little too long. You probably need to customize your mount so as not to lose too much Z movement because of the extra length.by MelT - Smart_Rap
Re: What do you use your SmartRap for mainly? - 12 years ago
My smartrap got appreciation from my wife when I printed and replaced a shower knob which was broken for about 5 years. It was the best thing that came out of the printer yet, she says. Just like you guys, I'm a tinkerer so a 3d printer is a necessity for me to make or replace parts. I haven't gone full blown like some of you though. Focusing on small things for now. Mainly toys for my son, aby MelT - Smart_Rap
Re: Madmike8's Smartrap Build - 12 years ago
Now you got me a little worried. I have a 4 yo son who's always around me when I'm printing (he probably thinks everything I print is for him ) Looks like this is just too risky Or maybe I can just keep him out when I'm working on lasers. Have to do a lot more reading on this. How fast does it cut stickers anyway?by MelT - Smart_Rap
Re: BackEMF's SmartRap 0.4.7 build - 12 years ago
2 turns just doesn't sound like it can grip the shaft well. Make it 5 turns at least. I've never had a problem with this many turns. You might want to try that.by MelT - Smart_Rap
Re: How fast can your smartrap print? - 12 years ago
I'm kinda missing the speed improvement in the latest cura but the initial layer line width setting is a welcome addition. I hope they can add a feature to slow down when printing bridges.by MelT - Smart_Rap
Re: How fast can your smartrap print? - 12 years ago
Quoteduranza Or you can do what MeIT has done and re-direct some airflow to the print It's just that celljeffe's fan is only 40mm so it looks like it's just big enough to blow on the cold end. I'm having some level of success on my setup but I believe the best would be a dual fan setup. One dedicated for cold end and a ducted one for the print because as you will discover, you will need cooliby MelT - Smart_Rap
Re: Madmike8's Smartrap Build - 12 years ago
Now you're making me jealous again. Is that laser another exotic part that will be hard to find? I do not have a broken CD drive that I can salvage for parts. Maybe I will drop by the surplus store to get one and use the laser inside. Looks like light enough to mount at the end of the X end of the smartrap.by MelT - Smart_Rap
Re: New to 3d printing with smartrap need some help - 12 years ago
In any case, M119 should not aways be triggered. Have you been playing around with your firmware lately? Might be worth reuploading.by MelT - Smart_Rap
Re: New to 3d printing with smartrap need some help - 12 years ago
Ah. If it always says triggered, that could be it. And please check that you have placed the wires to the RAMPS board correctly or that you have wired the right terminals on the micro switch. It should be in the NC (normaly closed) pin.by MelT - Smart_Rap
Re: New to 3d printing with smartrap need some help - 12 years ago
Quoteduranza I'm still trying out the auto leveling and almost got it going, but when I set the z height between probing it doesn't change anything and the nozzle scrapes when going from one location to the other. What have your already tried? Note that there are 2 settings to change for the probing. #define Z_RAISE_BEFORE_PROBING 5 //How much the extruder will be raised before travelingby MelT - Smart_Rap
Re: How fast can your smartrap print? - 12 years ago
Cool! So, Is that the same filament you used to print at 230C? By the way, is that the Z endstop I hear clicking as it prints?by MelT - Smart_Rap
Re: Mark Stephen's Smartrap Build - 12 years ago
FWIW, here's the place where Z_PROBE_OFFSET_FROM_EXTRUDER_DELTA_X is being applied in the firmware (marlin_main.cpp) code: #else // not AUTO_BED_LEVELING_GRID static void set_bed_level_equation_3pts(float z_at_pt_1, float z_at_pt_2, float z_at_pt_3) { plan_bed_level_matrix.set_to_identity(); // smartrap modif: we add some delta on 3rd point because of smartrap's special design : x isby MelT - Smart_Rap
Re: How fast can your smartrap print? - 12 years ago
Quoteduranza Well, last night I had my printer going 100 mm/sec with Reg's geared extruder at 210c with very good finish and not missing any steps. This produced the best looking print from it to date. Very shiny and solid. This also got rid of all the stringing while moving to positions. The z rods do shake a little at this speed, and I had my retraction set to 0 afraid that I would strip the fiby MelT - Smart_Rap
Re: Mark Stephen's Smartrap Build - 12 years ago
Sorry Mark, I could have pointed that out, too but I was out for a few days I thought all smartrap owners knew about it. Glad you discovered it. djinn5150, I poked around serge's hack in the firmware before trying to understand what it does. I found out that it only works when you're using the 3 point probing and not when you're using the grid probing. What it does is that it applies the dby MelT - Smart_Rap
Re: New to 3d printing with smartrap need some help - 12 years ago
Quoteregpye I made an STL file for you MeIT, I have not printed it out so you can try it and report back if it is any good. This has been made especially for you and although not a full 90 degrees is is close to what can be done without making the bend too sharp. experimental 90 degree extruder Thank you so much regpye! I will certainly report back once I've tried it.by MelT - Smart_Rap
Re: New to 3d printing with smartrap need some help - 12 years ago
I'm not sure about the actual dimensions but it looks like the radius is big enough for it to slide smoothly. I can see that brittleness can be a problem with 3mm filament but I'm guessing not with 1.75mm. I also noticed that the point where the drive gear is pinching the filament is already past the bend and is straight so I can see this working. Worth a try, don't you think?by MelT - Smart_Rap
Re: New to 3d printing with smartrap need some help - 12 years ago
Hmmm... it looks like the 90 degree bend has been done on the ormerod extruder I hope you can do your magic regpye. Heheby MelT - Smart_Rap