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Eric Pavey
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Eric Pavey

Show-n-tell  - 
 
Sometimes it's the little things, and today it's low-profile bulldog clips:  I never liked how high up the C-shaped "spring" part of my bulldog clips stuck up above the bed:  I recently added a new filament cooling fan shroud to my printer (back left of the photo), and based on the design, it would hit the clips on the sides and back (if printing out to the edges).  I did a lot of looking and couldn't find any clip that met my needs... then realized I could probably modify my existing ones.  Thought I'd share if anyone else could benefit.

Presuming you have a hammer, two pair of needle-nose pliers, and a vice, it's pretty easy to pull the tabs out of the springs, smash them into a 45 deg angle, and re-insert.  Boom, low-profile bulldog clips.  Nothing on the hotend can hit them now, other than the nozzle itself.

#bulldogclip   #lowprofile   #clip  
15
Alan Whinery's profile photoBenjamin Santalucia's profile photoEric Pavey's profile photo
3 comments
 
+Benjamin Santalucia​: I know if you search Amazon for " bulldog clip" there's a wide variety to choose from. 
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Eric Pavey

Show-n-tell  - 
 
Just spent a week on Maui: When I came back I felt inspired to make a 3dprint of the island. Printed diagonal on my C-Bot's 12x12" platform, it's 14" across.
I had to download a bunch on individual chunks of the island mesh from the terrain2stl web app, then seam them together in Maya(quite a few hours of work...), + add the base and text . Sliced in Simplify3d, 200 micron, .4mm Volcano nozzle at 90mm\sec, 20% infill (probably should have done 10% to help with some of the roof issues), 2 shells, took about 13 hours in Makergeeks Gray'matter Gray PLA.
I'm pretty happy with it! Next up will be paint.
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Robert (RJ_Make)'s profile photoSelva kumaran's profile photoEric Pavey's profile photo
3 comments
 
+Robert & +Selva kumaran : Thanks!
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Eric Pavey

Discussion  - 
 
Double running macro?  I've been using the below macro successfully for my z-touchplate:
macro.sendSerial("G20\n G92 Z0\n G38.2 Z-.5 F1\n G92 Z.124\n G0 z.25");
I've not done any cutting for two weeks.  Started today, and now when I run that macro, it runs... twice in a row.  
Not the worst thing ever, but, not normal.  Any thoughts?
1
John Lauer's profile photoFrank Herrmann's profile photoEric Pavey's profile photo
5 comments
 
I'm pretty new to chilipeppr, can you explain how I'd do that?
thanks
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Eric Pavey

Show-n-tell  - 
 
Just a general FYI:  Since I have all new electronics & firmware I did a comparison of print times vs jerk settings vs quality in Repetier+RADDS using the #3DBenchy  as my test subject.  Lots of pictures and numbers! ;)
http://www.akeric.com/blog/?p=3768 
11
Billy Zelsnack's profile photoJulien Dodokal's profile photoEric Pavey's profile photo
20 comments
 
+Julien Dodokal I did all my timing based on when the actual print started/stopped, not counting heatup of bed or extruder.  That however is a good info point I'll be sure to include in the blog.  That being said my bed heads in 30 seconds (nozzle in about a minute), so it wouldn't be that much of an overall impact even if I had included it.
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Eric Pavey

Questions/Help  - 
 
Having a problem maintaining hot-end temp when my filament cooling fan kicks on:

I have a custom printer running Marlin, via a Rumba board.  I slice in Simplify3D, and then print via Octoprint.  Right now I'm printing PLA with a 1.2mm volcano nozzle with 600mm layer heights:  I lay four layers down, and then kick the cooling fan on.

The issue I'm having, and I'm not sure what this is related to, is that when the cooling fan kicks on, the printer doesn't compensate the nozzle temp for... a while:
At layer 4 the fan kicks on, and quickly my temp drops a good 10-15 deg.  It stays low for maybe 10-20 minutes, then suddenly jumps back up to where it should be, and stays there the rest of the print. 
If I start the print out with the fan on, the temp is correct the whole time.  As a hack, if I catch this, I can crank the temp way up (to like 230), and it'll heat up to roughly where it should be.  But then when things later "engage" I have to remember to drop my temp back down or it really heats up to 230.

In the Temperature tab in S3D, I have "Relay Temperature Between Each" Layer & Loop checked, thinking this would provide for the feedback the hardware needs to compensate.  But it seems to have no effect.

Any thoughts on this?

Thanks!
2
Ryan Carlyle's profile photoStephanie S's profile photoEric Pavey's profile photo
31 comments
 
Just an update:  Got the 40w (really, 35w based on my measurements) installed, and now it 'just works':  Can print 'fast' with 'full fan' and it maintains temp just fine.  Mystery solved.  More details on my blog:
http://www.akeric.com/blog/?p=3673
Thanks again for all the help and feedback!
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Eric Pavey

Discussion  - 
 
New ChiliPeppr user.  Have used it successfully for a couple of test cuts now.  I'm using an X-Carve\grbl.
The one issue I'm having is that it will randomly just pause itself 2-3 times during a cut (1.5 hours-ish).  If I hit the ~ / unpause button, it'll launch back to life.  Any thoughts?  I'm on a mac, using Chrome.  Really great tool by the way :)
1
Eric Pavey's profile photoFrank Graffagnino's profile photo
10 comments
 
I believe so. Do a Google search for configuring GRBL
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Eric Pavey

Show-n-tell  - 
 
http://www.akeric.com/blog/?p=3800
Finished painting my Maui 3d print:  Blogged the whole start -> finish process for anyone interested.
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Chris Mjh's profile photo
 
looks good.
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Eric Pavey

Discussion  - 
 
Is it possible to have Chilipeppr start up not loading the last cut made?  I've loaded cuts that take a good minute to open (my machine is showing it's age, I'm not saying they're thaaat big).  I generally only cut them once.  But it means every time I open Chilipeppr I have to wait... and wait... for the last cut to open... then wait a bunch more when I load the new cut.  If it simply loaded the 'Chilipeppr logo' every time, that'd be great.
1
Ray Kholodovsky's profile photoEric Pavey's profile photo
3 comments
 
AH, removeItem does the trick.  Thanks!
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Eric Pavey

Discussion  - 
 
Question about how to restart my gcode after some user-induced "issues".  My hardware is X-Carve, running grbl.

I did a two part cut in meshcam.  First part executed fine, chilipeppr paused during the toolchange.  Swapped bits, ran my touchplace code.  And the realized (when my z-stepper started making bad sounds) that my 'newly improved detachable touchplate' never got 'attached'.  Sigh.

I hit the red stop button in chilipeppr, and everything stops.  Whew!  Here's the issue:  At that point I couldn't get jog control again.  Nothing I would do would let me move the z back up and re-run the touchplate macro.  Nothing looked in error, but... nothing worked any more either.  The only way I could get it to come back to life was with a ctrl+X, which then forgets all my homing :(  

Is there a way to regain jog-control after hitting stop, and then un-pausing, thus restarting the cut?

thanks
1
John Lauer's profile photoEric Pavey's profile photo
2 comments
 
FYI, I've seen the alarm state, and this wasn't it.  The 'alarm' text wasn't displayed.  I think it just said 'idle'.
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Eric Pavey

Discussion  - 
 
Experiencing consistently weird behavior using my z touchplate with Chilipeppr, and my X-carve/grbl.  This is a repeatable issue:
Turn on x-carve.  Plug USB into laptop.  Drag gcode into chilipeppr.  Hook up touchplate.  Run my touchplate gcode macro:  
G20; G38.2 Z-.5 F1; G92 Z.124; G0 z.25

The toolhead travels up, not down...  
Run the macro again:  Goes up more...
Turn off X-carve, unplug USB.
Repeat the above process:  On the 2nd time, it travels down, like it should.  Just for fun, during the first try, I'll change the gcode telling it to send the head up, instead of down (thinking it's reversing things for some reason) : Still travels up.  Nothing I do will make it travel down to touch the plate without a reboot.  Any thoughts on that?  Thanks!
1
Andy Meyer's profile photoEric Pavey's profile photo
25 comments
 
lol, I have a bunch of that scrap layout around just waiting to be tested on.  I'll try to prevent that from happening ;)
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Eric Pavey

Questions/Help  - 
 
Marlin question on adjusting the power going to the hot-end heater cartridge:

I've been having issue when my cooling fan kicks on, where my extruder temp drops a lot, for a while, before things slowly warm back up.  Covered in detail here:
https://plus.google.com/u/0/117814995679657521943/posts/fjHT5pr9s53?cfem=1
This is a (insulated) 1.2mm E3d volcano nozzle extruding at 45mm/sec, 600 micron layer heights with a 25cmf fan (running at a variety of speeds).  I'm using a Rumba board, 12v, with a 500w power supply.  Power is not a problem (as discussed in the above thread).
What it looks like is the hotend can't keep up with both a cooling fan & the cold filament pushing into it.

After much troubleshooting, I was tipped off to see what M105 was returning.  During the nozzle heat (before a print, or when the fan kicks on), it gives me this:
RECEIVED: ok T:206.1 /220.0 B:26.0 /0.0 T0:206.1 /220.0 @:127 B@:0
And from what I understand, power is @:127... basically 50% : It never goes to 255 (If I'm reading this correctly).
Poking around in my firmeware, all the pid-related settings are at 255, and I don't know where else this sort of thing would be set.

Anyone have any thoughts?  Am I on the right track?  
On a side note, a more powerful heater cartridge is on order...
Thanks!
3
ThantiK's profile photoMarcus Wolschon's profile photoEric Pavey's profile photo
10 comments
 
Just an update:  Got the 40w (really, 35w based on my measurements) installed, and now it 'just works':  Can print 'fast' with 'full fan' and it maintains temp just fine.  Mystery solved.  More details on my blog:
http://www.akeric.com/blog/?p=3673
Thanks again for all the help and feedback!
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Eric Pavey

Discussion  - 
 
Just assembled my X-Carve, thought I'd give Chillipeppr a spin. Can cut just fine from Easel, but I get this from Chilipeppr:

"You must connect to your GRBL device using the GRBL buffer algorithm in this workspace. Connecting to any other buffer (default, tinyg, etc) will cause unpredictable behavior."

However, I can find no configuration options anywhere to make this 'connection'. Am I missing something right in front of me?

I'm on OSX 10.10.5, using Chrome.
Thanks!
1
Eric Pavey's profile photoFrank Graffagnino's profile photoKevin Hauser's profile photoDouglas Drake's profile photo
4 comments
 
I'm having the same problem but my server is connected and so is the device . i have also selected the proper baud rate of 115k. but to my dismay the grbl still does not connect. at this point i am lost in what to do.

any help would be appreciated

thx
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