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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).
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Re: Converting 'sliced' model into a .sat file - 10 years ago
ah thanks! i will research more into that!by willera - General
Converting 'sliced' model into a .sat file - 10 years ago
Hi...... I am doing a project at university looking at the optimizing the strength of FDM made parts and then comparing these to parts traditionally made parts via injection moulding. Part of this project is doing FEM modelling. I was wondering if there was a way of converting the 'sliced' model that you get from Slic3r into a CAD file type (eg a .sat file) so I can directly use all of the sliby willera - General
problem with induction sensor - 10 years ago
I seem to have a reliability issue with my induction sensor. Basically.......printer was working fine up untill about 2 weeks ago, then I left it for ages as I was busy, tried to run a print this weekend and when homing the z-axis the bed keeps going through the printer head, even though the induction sensor is plugged in and the light appears when the metal bed gets to close. Anyone know the tby willera - Smart_Rap
Re: Sethmo's Smartrap Core Build v1.0 - 10 years ago
Yours looks so pretty and professionally done! Has made me want to make mine tidier nowby willera - Smart_Rap
3D printer to 2D plotter - 10 years ago
how easy would it be to turn this into a 2D plotter? aside from simply attaching a pen to the head, how does the gcode work, are there websites programs or anything to make it?by willera - Smart_Rap
Re: First 3dprinter (smartrap core) build 
- 10 years ago
Yeah I did my project majorly on the cheap and I spent around £140 for everything. that was including having favours done for me as in my mate printing out the parts and just finding offcuts for the MDF frame. You can get the RAMPS, arduino and stepper drivers for £15 off aliexpress if you dont mind waiting a few weeks from china. I got motors from smartfriendz website at 8euro each. most expensiby willera - Smart_Rap
Re: Smartcore noise and vibration reduction - 10 years ago
what so a load of 70mm round holes in a cool pattern?by willera - Smart_Rap
Re: Madmike8's Funbot build #2 - 10 years ago
does the pla keep jamming in the chimera?by willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
yeah speed wise i'm going at around 15mm/s atm, but for yoda and such i was doing around 20. I've just been messing around with all the settings trying to get a perfect first layer recently. However problems with my computer turning off and my jhead mk v clone just dragging on everything I splashed out on a LCD screen and SD card reader, an E3d v6 (proper one) and some cork board. Should be hereby willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
noise is bearable when i'm in the room with it, however went downstairs last night and you can hear it vibrating through the floor quite a bit, i did orginially have the current turned down so it was quieter but it was drifting while printing. yeah i am in the UK, what does that part do?by willera - Smart_Rap
Re: Sethmo's Smartrap Core Build v1.0 - 10 years ago
I am so jealous of your guys garages. I'm a student so i'm doing this all by the side of my bed/on the lounge floor!by willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
The sensor I bought (from the guys at smartfriendz) came with the two sensor wires having resistors on them, so I just plugged it in and it worked. not sure which one it is! i guess its the divider tho?? not really sureby willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
moving my printer from my mates house to mine has had the effect of going back to square one with calibrating! yay...... however added up the cost for all my parts and it comes to £160! not bad tbf for the piece of kit I now have! (when it works of course aha)by willera - Smart_Rap
Re: Smartcore noise and vibration reduction - 10 years ago
will changing the VREF down to 0.25 have any effect on missing steps?by willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
Ah nice. Yeah a cable chain for this would be good, how ahow you planning on doing it? Mine kind of snags on stuff, need to get one of those plastic cable tidy things on thereby willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
so for the threaded rod design you just bought some m8 threaded rod? then printing off that modified z axis mounts? ah thats a nice design for the fan, ill print one off and try it. yeah loving it! what have you guys made with your cores yet? just mods or any projects going?by willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
Finished yoda, one ears abit funny bit otherwise good! happyby willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
Yeah it's printing pretty good. Yeah z axis isn't great, when doing the bed homing it wobbles on the top abit, needs to be firmer. And I definitely need a fan on the part, some of yodas ears arears great. What ideas do you guys have for the redesign?by willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
Okay! Been calibrating all day, think I've got to a decent place, need to change the head design as my hot end is a little wonky, and just realised my z is a little loose. Doing a yoda tho nowby willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
Also just found the bag full of jumpers....major face palmby willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
Okay, after 6 hours staring at this thing with my mate we have finally figured it out!!!!!!!!!! The problem was that my ramps board didn't have the jumpers underneith the stepper motor drivers! It now homes people!!! I have never been happier to see a steppper motor rotate!!!!! Thanks for all the help! My current was wrong also so i changed that. Kept thinking it was the firmware as I could useby willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
Okay the problem is definitely just firmware related, can you send your firmware please? Output of M501by willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
Okay so does anyone know why my motors move 10 times the amount they should do? Moving 1mm moves a cm at least, all the steps per mm are at 80. Also when pressed the motors hum like they are moving but with no motors. Also when homing all the motors do wait 15s then hum and nothing else. All the videos I've seen the head moves towards the endstopsby willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
Quotedjinn5150 If they just hum a few things come to mind...1 current 2 accelleration/jerk or 3 both On my DRV8825's I had to drop things down to .25v on vref to get good results, I am using 1/16th stepping on the axis and 1/8 on the extruders, motors pulling in opposing forces would just cause it to move in another direction, they need to do this by design so most likely your current settingsby willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
Quotemadmike8 It does adjust the current, but the easiest way to set them is measure voltage... Yep, I set mine... and you should too... Link to Pololu 4988 drivers with reference on how to setting current Okay ive set the drivers now between 0.48 and 0.5V. I'm concentrating on the x and y movement for now, I swapped the wires round on the x motor, and I have had some joy. The control buttonby willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
Quotemadmike8 Have you tried disconnecting one stepper and see if the other stepper moves? Have you adjusted your drivers? I will try that when I get back! And with adjusting the drivers do you mean that little screw on the stepper drivers? I think I read that they change the current?, but no I haven't changed them...did you change yours?by willera - Smart_Rap
Re: Willera's SmartrapCore Build - 10 years ago
Quotedjinn5150 Ok For me I had to have the X Motor on the Left Y on the right. You did make sure COREXY is enabled right? If you manually push the head to the center and move +x 5mm what happens? Are your steps correct for your pulley's? I have 20t pulley's with 1/16th step motors and I need to be at 80 steps if your z is using same pulley it should be 80 all around 16t pulleys should be sby willera - Smart_Rap
Willera's SmartrapCore Build - 10 years ago
Hi Guys! So i have been following most of the smartrapcore projects on here, I thought i would post progress of my own! So a little timeline of my build progress so far......... However I am having a few issues. When setting up the electronics I cant seem to get the x y motors to move properly. z works but it doesnt seem to sense the inductive endstop and will continue to ram inby willera - Smart_Rap
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