Notifications
Clear all

[Sticky] 3D Printer Corner

103 Posts
14 Users
10 Likes
17.6 K Views
Inq
 Inq
(@inq)
Noble Member
Joined: 8 months ago
Posts: 959
 
Posted by: @zander

@inq Very cool. I wonder though how it will behave with a load?

It doesn't take load very well.  Hopefully it won't have to.  The "turret" will have a couple of sensors and an ESP-07 board inside.  It's pretty light and won't have to lift anything, or push anything.  It just has to overcome the friction and inertia.

In fact I am actually counting on it to skip steps.  I'm putting stops at the +/- 180 degrees locations so that on power-up I can drive it to a stop and let it skip steps... thus setting a known limit.  Then centering would be a set number of steps away.

3 lines of code = InqPortal = Complete IoT, App, Web Server w/ GUI Admin Client, Access Point Manager, Drag & Drop File Manager, OTA, Performance Metrics, Web Socket Comms, Easy App API, All running on ESP8266...
Even usable on ESP-01S - Quickest Start Guide


   
Duce robot and Ron reacted
ReplyQuote
Inq
 Inq
(@inq)
Noble Member
Joined: 8 months ago
Posts: 959
 

The whole DIY ball bearing thing was a flop.  Considering I have a bunch of bearings around and wanted a smaller unit, I just used a regular ball bearing for the swivel portion and simply used a couple of rivets to act as the wheel shaft and bearing.  A little 3-in-One oil and flipping it and it'll spin for longer than five seconds.  Good enough!

Model

TailWheel

Print

TailWheel

3 lines of code = InqPortal = Complete IoT, App, Web Server w/ GUI Admin Client, Access Point Manager, Drag & Drop File Manager, OTA, Performance Metrics, Web Socket Comms, Easy App API, All running on ESP8266...
Even usable on ESP-01S - Quickest Start Guide


   
ReplyQuote
Inq
 Inq
(@inq)
Noble Member
Joined: 8 months ago
Posts: 959
 

Question - Is it possible to take a 2D image and make it into a 3D printable model?

I'd like to take a Ginko tree leaf and make a 3D printable leaf.  It doesn't have to have any 3D curvature... just the flat image extruded a 0.5 to 1 mm would be great.

Thanks.

VBR,

Inq

3 lines of code = InqPortal = Complete IoT, App, Web Server w/ GUI Admin Client, Access Point Manager, Drag & Drop File Manager, OTA, Performance Metrics, Web Socket Comms, Easy App API, All running on ESP8266...
Even usable on ESP-01S - Quickest Start Guide


   
ReplyQuote
Will
 Will
(@will)
Noble Member
Joined: 1 year ago
Posts: 2112
 

@inq 

What file format is your source file containing the ginkgo leaf ? What 3D software app are you using ?

I was kidnapped by mimes.
They did unspeakable things to me.


   
ReplyQuote
Inq
 Inq
(@inq)
Noble Member
Joined: 8 months ago
Posts: 959
 
Posted by: @will

@inq 

What file format is your source file containing the ginkgo leaf ? What 3D software app are you using ?

I don't have a leaf file.  There wasn't anything on Thingiverse.  My thought was to just pick a picture off the Internet of a leaf from strait above.  I was hoping there was some software that would let me extrude it up some nominal thickness, but would also create the veins as slightly higher extrusions so it would look like a leaf when 3D printed.

It seems like I've seen where you can 3D print a photograph using something like white or translucent plastic and it'll vary the thickness such that when you shine a light through it, you can see the photo image.  Obviously dark portions are thicker, blocking more light.  Just never have seen the software that does it.

I use:

  1. A version of SketchUp when Google was still the owner.  It's free and supports AutoCAD DWG/DXF imports.  All the model pictures I post on the forum are from SketchUp.  It exports the STL files.
  2. I have Fusion360 somewhere on a DVD, but don't use it anymore.  I found it way too cumbersome (like all AutoDesk software) and not near as intuitive as SketchUp for my casual on-again / off-again usage habits.  I had to totally relearn it from scratch three times.  Sketup is like riding a Bike.
  3. Cura 5.0 for most all of my 3D conversion needs from STL to GCODE
  4. Mesh Mixer sometimes for certain conditions.

VBR,

Inq

 

3 lines of code = InqPortal = Complete IoT, App, Web Server w/ GUI Admin Client, Access Point Manager, Drag & Drop File Manager, OTA, Performance Metrics, Web Socket Comms, Easy App API, All running on ESP8266...
Even usable on ESP-01S - Quickest Start Guide


   
ReplyQuote
Will
 Will
(@will)
Noble Member
Joined: 1 year ago
Posts: 2112
 

@inq 

OK, I'm not familiar with Sketchup and I assume you're using the non-Pro edition (which has limited import and export capabilities). So probably the easiest path is to find a ginkgo leaf picture.

Let's suppose you find a suitable file in .png format and download it to your computer. Google pngtodxf and select one of the (free) choices presented. Use this to convert the downloaded .png file to .dxf and import that directly to Sketchup.

I was kidnapped by mimes.
They did unspeakable things to me.


   
Inq reacted
ReplyQuote
Inq
 Inq
(@inq)
Noble Member
Joined: 8 months ago
Posts: 959
 

@will - Thanks!  Exactly what I was looking for.

3 lines of code = InqPortal = Complete IoT, App, Web Server w/ GUI Admin Client, Access Point Manager, Drag & Drop File Manager, OTA, Performance Metrics, Web Socket Comms, Easy App API, All running on ESP8266...
Even usable on ESP-01S - Quickest Start Guide


   
ReplyQuote
Inq
 Inq
(@inq)
Noble Member
Joined: 8 months ago
Posts: 959
 

I'm trying out some Carbon Fiber / Polycarbonate filament.  I've replaced the brass nozzle with a hardened steel as advised.  What keeps people from using the hardened steel nozzle all the time on all materials... PLA, ABS... etc to avoid having to change it out all the time?

VBR,

Inq

3 lines of code = InqPortal = Complete IoT, App, Web Server w/ GUI Admin Client, Access Point Manager, Drag & Drop File Manager, OTA, Performance Metrics, Web Socket Comms, Easy App API, All running on ESP8266...
Even usable on ESP-01S - Quickest Start Guide


   
ReplyQuote
Inq
 Inq
(@inq)
Noble Member
Joined: 8 months ago
Posts: 959
 

Since I use a LOT of ABS, I have a tables to adjust my CAD drawings because it shrinks so bad after cooling.  Trying to place a trapped nut or interfacing with something requires me to CAD it up larger than normal so that it'll shrink and fit.  This gets particularly difficult since only the X/Y shrink.  The Z dimensions don't.

Anyway, I new this Carbon Fiber / Polycarbonate was going to have different shrinking characteristics so I did a few test samples.  It actually grows on cooling.  IOW, it has a negative Coefficient of Thermal Expansion (CTE).  Many carbon fibers do, but I didn't really expect it to happen here.  The test piece was CAD'd up to be 19.053 mm, but came out 19.120 mm... 

Giving a CTE = -14.7E-6 (/°C)

Cool!  😎 

3 lines of code = InqPortal = Complete IoT, App, Web Server w/ GUI Admin Client, Access Point Manager, Drag & Drop File Manager, OTA, Performance Metrics, Web Socket Comms, Easy App API, All running on ESP8266...
Even usable on ESP-01S - Quickest Start Guide


   
ReplyQuote
Will
 Will
(@will)
Noble Member
Joined: 1 year ago
Posts: 2112
 

@inq 

ABS = always bigger sizes

 

I was kidnapped by mimes.
They did unspeakable things to me.


   
ReplyQuote
codecage
(@codecage)
Noble Member Admin
Joined: 3 years ago
Posts: 1165
Topic starter  
Posted by: @inq

What keeps people from using the hardened steel nozzle all the time on all materials... PLA, ABS... etc to avoid having to change it out all the time?

I would have to say that could be that all filaments they have printed with so far did not need the hardened steel nozzles.  I've never printed with anything that required the hardened steel so all I have used are the brass nozzles.

SteveG


   
ReplyQuote
Inq
 Inq
(@inq)
Noble Member
Joined: 8 months ago
Posts: 959
 
Posted by: @codecage
Posted by: @inq

What keeps people from using the hardened steel nozzle all the time on all materials... PLA, ABS... etc to avoid having to change it out all the time?

I would have to say that could be that all filaments they have printed with so far did not need the hardened steel nozzles.  I've never printed with anything that required the hardened steel so all I have used are the brass nozzles.

The Internet keeps talking about the brass conducting heat better.  But it really sounds like, "That's the way we started and have always done."  I know that the steel is less conductive, but obviously the steel works.  When I finished with the CF/PC, I did swap it back to a brass one... so I've not tried the hardened steel on the PLU+ or ABS that I'm printing at the moment.  Just wondering if there was some thing about cosmetics or sticking or ?????

Thanks

VBR,

Inq

3 lines of code = InqPortal = Complete IoT, App, Web Server w/ GUI Admin Client, Access Point Manager, Drag & Drop File Manager, OTA, Performance Metrics, Web Socket Comms, Easy App API, All running on ESP8266...
Even usable on ESP-01S - Quickest Start Guide


   
ReplyQuote
Inq
 Inq
(@inq)
Noble Member
Joined: 8 months ago
Posts: 959
 

I'm taking a little break from the coding on Inqling Jr.  I'm starting to dream about code at night and that's my sign to put it away for a bit. 

Also had a buddy over for burgers and beer around the fire pit and though the last person on Earth I'd expect to fly RC airplanes, it came up.  I'd wanted to get back into it since seeing the 3D print files for some of my favorite WW2 planes.  Couple years ago, I had purchased a few and printed them, but I cracked them up on my first flights... They were simply way too fast for my 30 year absence from the last time I flew RC.

Anyway, since he can help me get one in the air, I checked out the site again and low-and-behold they added a J3 Cub trainer.  And the best part... it was FREE.  So, I purchased a roll of Yellow and starting to print it up.

Cub1

3 lines of code = InqPortal = Complete IoT, App, Web Server w/ GUI Admin Client, Access Point Manager, Drag & Drop File Manager, OTA, Performance Metrics, Web Socket Comms, Easy App API, All running on ESP8266...
Even usable on ESP-01S - Quickest Start Guide


   
DualFuel and DaveE reacted
ReplyQuote
Page 7 / 7