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Author Topic: So ... 3d Printers....  (Read 18116 times)

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HaRuMaN

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Re: So ... 3d Printers....
« Reply #640 on: February 13, 2018, 06:08:36 pm »
So they won't let it publish for 24 hours since it's a new account, but when it goes live it will be here:

https://www.thingiverse.com/thing:2792174

Should be sometime tonight.

pbj

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Re: So ... 3d Printers....
« Reply #641 on: February 14, 2018, 08:30:52 pm »
Your link is live! Now I just need one of you big, strong men to print me some...

nitrogen_widget

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Re: So ... 3d Printers....
« Reply #642 on: February 14, 2018, 08:37:10 pm »
Your link is live! Now I just need one of you big, strong men to print me some...


PL1

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Re: So ... 3d Printers....
« Reply #643 on: February 14, 2018, 10:00:17 pm »
print me some...
First test print started.

The notes on thingiverse say that the screw hole sizes aren't confirmed yet.

What size screw does it use for the crossbars (outer holes) and what size for the PCBs? (inner holes)

Looks like they are different sizes.  #8-32?  #6-32?


Scott
EDIT: Print completed. The holes are different sizes.

The crossbar holes are the right size for #6-32 screws.

The PCB holes appear to take something smaller than a #4 (0.112" diameter) sheet metal screw, maybe a #2 or #0 sheet metal screw.  :dunno

Turning the print 90 degrees on the long axis should result in a smoother ramp.
« Last Edit: February 15, 2018, 12:18:20 am by PL1 »

pbj

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Re: So ... 3d Printers....
« Reply #644 on: February 14, 2018, 11:18:30 pm »
The inner holes are smaller.  A number #6 machine screw was ever so slightly too large. (One of my attempted kludge repairs)

Original part was a sheet metal screw.  Maybe their thread is a little smaller?

I can believe 6 and 8 are the right sizes.... will try to confirm tomorrow.

PL1

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Re: So ... 3d Printers....
« Reply #645 on: February 15, 2018, 01:38:00 am »
The inner holes are smaller.  A number #6 machine screw was ever so slightly too large. (One of my attempted kludge repairs)

Original part was a sheet metal screw.  Maybe their thread is a little smaller?

I can believe 6 and 8 are the right sizes.... will try to confirm tomorrow.
Machine screws and sheet metal screws have the same thread outer diameter for corresponding sizes, but the tpi (threads per inch) are different.

The threads on a #6-32 machine screw (32 tpi) are the same outer diameter as the threads on a #6-20 sheet metal screw. (20 tpi)

#2: 0.086"
#4: 0.112"
#6: 0.138"
#8: 0.164"
----------
Here are the rough measurements of the printed part:
2.835" long
0.795" wide
0.775" tall at the highest parts (inner screw towers)
0.200" outer diameter of inner screw tower  *** this looks too thin to handle a #4 or #6 screw hole ***
1.065" center-to-center on the inner screw holes
2.475" center-to-center on the outer screw holes


Scott
« Last Edit: February 15, 2018, 01:40:30 am by PL1 »

pbj

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Re: So ... 3d Printers....
« Reply #646 on: February 15, 2018, 09:44:32 am »
Snapped a few pics this morning.  Sorry, didn't have a metric ruler nearby.

The black screw is the one that holds the horseshoe PCBs to the inner posts on the plastic part.  It's too small for a 7/64" hole and too large for a 3/32" hole.  The larger bolt screws perfectly into a 1/8" hole, and slides through the larger holes on the end of the plastic part.  Note that it just passes through that hole, it doesn't actually screw into it.






PL1

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Re: So ... 3d Printers....
« Reply #647 on: February 15, 2018, 02:29:59 pm »
The black screw is the one that holds the horseshoe PCBs to the inner posts on the plastic part.  It's too small for a 7/64" hole and too large for a 3/32" hole. 
Since it's between 0.093" and 0.109", it is probably a #3 x 5/16". (0.099" diameter threads)

If so, those two screw holes probably should be enlarged from about 0.055" and 0.070" to about 0.081" (#46 drill bit) or 0.078" (5/64" drill bit) to reduce the odds of splitting.

The larger bolt screws perfectly into a 1/8" hole, and slides through the larger holes on the end of the plastic part.  Note that it just passes through that hole, it doesn't actually screw into it.
From your pictures, it appears that the machine screw is #5-40 x 5/8". (0.125" diameter threads)

For these holes, a *very* slightly larger diameter hole will allow the screw to pass through easier or you can run a 1/8" drill bit through them.
--------------
Do you have calipers to verify the outer diameter thread sizes?


Scott

pbj

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Re: So ... 3d Printers....
« Reply #648 on: February 15, 2018, 02:34:00 pm »
Yes, I've got calipers laying around somewhere as part of that research lab tool looting I did 3 years ago.  I'll dig them out and measure anything you want, baby. 

PL1

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Re: So ... 3d Printers....
« Reply #649 on: February 15, 2018, 03:59:34 pm »
If you could confirm these four measurements, that should be enough for Haruman's friend to make several helpful adjustments to the .STL file.

1.) 0.125" outer diameter threads on the #5-40 x 5/8" machine screw

2.) 0.099" outer diameter threads on the #3 x 5/16" screw

3.) 0.081" (?) screw body diameter (valley between the threads) on the #3 x 5/16" screw
- The pilot hole should be this size or slightly larger to reduce the odds of splitting the cylinder during tightening.

4.) 0.200" outer diameter for the inner screw towers
- Can those cylinders be a larger diameter to reduce the odds of splitting/stripping?
- If so, how much larger would you recommend?


Scott

pbj

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Re: So ... 3d Printers....
« Reply #650 on: February 17, 2018, 11:02:43 pm »
1 - 3.2mm

2 - 3mm

3 - 2mm

4 - hair under 5mm.  I think this could be enlarged slightly.


pbj

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Re: So ... 3d Printers....
« Reply #651 on: February 19, 2018, 08:40:21 pm »
Alright, since I donít know how to read this thing... I present photos.


HaRuMaN

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Re: So ... 3d Printers....
« Reply #652 on: February 19, 2018, 09:13:25 pm »
damn, old school calipers

Nephasth

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Re: So ... 3d Printers....
« Reply #653 on: February 19, 2018, 09:27:37 pm »
Alright, since I don’t know how to read this thing... I present photos.

Top scale is cm broken down to mm. Bottom scale is inches broken down to tenths of an inch. So for example, the screw in the last pic is 2.1 cm long. (which is the wrong way to measure the length of a fastener, correct length of that screw is 3/4")
« Last Edit: February 19, 2018, 09:32:35 pm by Nephasth »
%Bartop

pbj

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Re: So ... 3d Printers....
« Reply #654 on: February 19, 2018, 10:27:42 pm »
damn, old school calipers

New in package trash pull.  The great tool heist of... 2015ish.


Howard_Casto

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Re: So ... 3d Printers....
« Reply #655 on: February 19, 2018, 10:51:10 pm »
I would upgrade to a digital if I were you.  I think I paid 8 bucks for mine and it means I don't have to pull out a magnifying glass and a flashlight every time I need to measure something.

PL1

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Re: So ... 3d Printers....
« Reply #656 on: February 19, 2018, 11:27:30 pm »
Here's how to read this set of vernier calipers.

I'll check the rest of the pictures soon.


Scott

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Re: So ... 3d Printers....
« Reply #657 on: Yesterday at 02:45:42 am »
Digital FTW!

And just to change subject slightly my Ms wanted a model of Bowser.
Its taken me 6 failed attempts to finally print it without some part breaking off or failing!

Wayy to much support needed for this dude lol



05SRT4

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Re: So ... 3d Printers....
« Reply #658 on: Yesterday at 02:46:39 am »
Just posting a materiel guide Simplfy3d put out. I am sure the settings will be the same with most slicers.

https://www.simplify3d.com/support/materials-guide

05SRT4

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Re: So ... 3d Printers....
« Reply #659 on: Yesterday at 02:52:53 am »
Bowser looks cool dude. Either of you plan on painting it?

Titchgamer

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Re: So ... 3d Printers....
« Reply #660 on: Yesterday at 04:33:03 am »
Yup it will be painted by the Ms.

She has a back log of painting atm, Ime printing stuff faster than she can paint it LOL

Shes doing my Terminator bust atm :p

nitrogen_widget

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Re: So ... 3d Printers....
« Reply #661 on: Yesterday at 04:22:06 pm »
Yup it will be painted by the Ms.

She has a back log of painting atm, Ime printing stuff faster than she can paint it LOL

Shes doing my Terminator bust atm :p

Which Printer did you get again?
My tax return will be in any week.....

Slippyblade

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Re: So ... 3d Printers....
« Reply #662 on: Yesterday at 04:24:52 pm »
Widget, depends on how hackerish you wanna get.  The Anet-A8 is a kit.  That requires a lot of assembly/calibration/babysitting, but is very inexpensive.  A lot of us have that one.  Then there's the Creality CR-10.  More expensive, but it's a lot more turn-key.  Comes assembled and ready to print I believe.

Titchgamer

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Re: So ... 3d Printers....
« Reply #663 on: Yesterday at 04:53:38 pm »
Yup it will be painted by the Ms.

She has a back log of painting atm, Ime printing stuff faster than she can paint it LOL

Shes doing my Terminator bust atm :p

Which Printer did you get again?
My tax return will be in any week.....

I got the CR10 mini.

Very happy with it and it has loads of support.

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Re: So ... 3d Printers....
« Reply #664 on: Today at 01:11:41 am »
I don't want to scare people away from the anet though.....  if you are comfortable with assembling furniture the a8 isn't all that different..... there are just a lot more parts.  It's the last "tool" I've bought in a long time that I use constantly.  It's good for figures and stuff as well, but I haven't had much time to play with that aspect of it yet. 

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Re: So ... 3d Printers....
« Reply #665 on: Today at 11:51:41 am »
Anet 4 Lyf - if you like to tinker, itís great for customizing
***Build what you dig, bro. Build what you dig.***

nitrogen_widget

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Re: So ... 3d Printers....
« Reply #666 on: Today at 11:53:18 am »
Widget, depends on how hackerish you wanna get.  The Anet-A8 is a kit.  That requires a lot of assembly/calibration/babysitting, but is very inexpensive.  A lot of us have that one.  Then there's the Creality CR-10.  More expensive, but it's a lot more turn-key.  Comes assembled and ready to print I believe.

I definitely want a kit.
I like to tinker and tweak.
I've seen the quick guide on what to get for the A8 and I've been looking at some of the Delta kits also.

  
 

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