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by Vagulus
Mon Sep 21, 2020 11:07 pm
Forum: General
Topic: How to avoid distortion on large flat models
Replies: 3
Views: 88

How to avoid distortion on large flat models

I have printed a sprocket for a device I am prototyping
200922 Sprocket.png

Problem is that it does not run true on its axis
https://youtu.be/l8uwbFJkgQM
This will be a very common problem I guess and what I am looking for is some advice on how to get a better result.
Thanks
by Vagulus
Sun Sep 13, 2020 11:20 pm
Forum: General
Topic: Four percent shrinkage with PLA?
Replies: 9
Views: 226

Re: Four percent shrinkage with PLA?

Is that the general idea? Actually, the 21.65 dimension I showed should be 24.4 mm. My bad! :oops: I have been doing a bit of experimenting. My printer is a Raise3D Pro2 and slicer is ideaMaker. My method is to print a test piecewith the Nominal Bore and then measure the Actual Bore . Then I use ((...
by Vagulus
Sat Sep 12, 2020 11:48 pm
Forum: General
Topic: Four percent shrinkage with PLA?
Replies: 9
Views: 226

Re: Four percent shrinkage with PLA?

" Yes, inside holes ALWAYS are smaller than drawn in CAD. Not the fault the printer or the material. This is due to limitations of the STL file export and import process, what the STL represents, the fact that a curve is NOT a curve in the STL, it's a multi sided polygon. Thus the inside lines...
by Vagulus
Sat Sep 12, 2020 7:50 am
Forum: General
Topic: Four percent shrinkage with PLA?
Replies: 9
Views: 226

Re: Four percent shrinkage with PLA?

Thanks Jetguy.
by Vagulus
Fri Sep 11, 2020 2:49 am
Forum: General
Topic: Four percent shrinkage with PLA?
Replies: 9
Views: 226

Four percent shrinkage with PLA?

This sprocket was drafted in Autodesk Inventor 2019 with a Keyed Bore dia. 25 mm. My Pro2 printed it in eSun PLA+ with the bore dia. of 24 mm. That's 4% shrinkage isn't it?

How can this be? Has anyone had experience of that much shrinkage? What did you do about it?
by Vagulus
Tue Aug 04, 2020 8:49 am
Forum: General
Topic: Extruder offset varies with Y-axis value
Replies: 2
Views: 236

Re: Extruder offset varies with Y-axis value

FWIIW: I thought I might have some of the coordinates of the eight cubes out of whack. I checked with ideaMaker and everything is okay. That's not the solution. :cry:

I have attached the STL for a single cube if someone wants to assemble the eight of them to check. :)
by Vagulus
Tue Aug 04, 2020 12:19 am
Forum: General
Topic: Extruder offset varies with Y-axis value
Replies: 2
Views: 236

Extruder offset varies with Y-axis value

I have just replaced the extruder extension/retraction servo on my Pro2 which involved a major strip-down of the machine. Now I have a problem with the X-axis registration of the two extruders. This is a test-piece print with the X-axis offset in the touch-screen control panel at default 25.4 mm: 20...
by Vagulus
Tue Jul 07, 2020 10:49 pm
Forum: General
Topic: Bottom Surface Flowrate
Replies: 27
Views: 2283

Re: Bottom Surface Flowrate

Wow! :roll: Thanks for all that.

I am just getting back to this and it will take a while to digest all you have written (and finally get my Pro2 working with both extruders :evil: ) then I'll start tuning as you suggest.

As the nice man said, "I'll be back!" ;)
by Vagulus
Wed Jun 24, 2020 1:39 am
Forum: General
Topic: Moving print area
Replies: 3
Views: 471

Moving print area

For a Pro2 the maximum available print area is 300x300 mm.
200624 Actual Print Size 300x300 360x480.jpg

I want to move this area away from the front - I think that is negative on the 'Y' axis - by a centimeter.
How do I do that?

Thanks
by Vagulus
Sat Jun 20, 2020 7:40 am
Forum: General
Topic: Bottom Surface Flowrate
Replies: 27
Views: 2283

Re: Bottom Surface Flowrate

Hi Jetguy Covid-19 didn't get me or anything - I have spent the past few weeks wrestling with the issue of printing with 0.8 mm nozzles. After a few days with acceptable results I think I can comfortably send you a copy of the template I have devised (attached). I am using eSun PLA+, bed temperature...
by Vagulus
Fri Jun 05, 2020 3:56 am
Forum: Software
Topic: Running Slic3r gCode on Pro2
Replies: 7
Views: 447

Re: Running Slic3r gCode on Pro2

Fine. Thank you. I will use that reference

I got Slic3r gCode for my Pro2 to print only using the Left (default) Extruder by inserting a T0 command into the gCode.

Thanks
by Vagulus
Fri Jun 05, 2020 12:40 am
Forum: Software
Topic: Running Slic3r gCode on Pro2
Replies: 7
Views: 447

Re: Running Slic3r gCode on Pro2

Hi Jetguy You're right in saying that I did not read the gCode first. There is a simple reason. Although I have extensive coding experience in a variety of languages and contexts, I have not yet ventured into the wonderful world of gCode. Despite several plaintive pleas on this and other forums no-o...
by Vagulus
Thu Jun 04, 2020 9:22 am
Forum: Software
Topic: Running Slic3r gCode on Pro2
Replies: 7
Views: 447

Re: Running Slic3r gCode on Pro2

Some progress. :| but I can really do with some help. When it has read the Slic3r gCode my Pro2 takes twenty minutes or more before it does anything - then it starts to print with the Right Extruder. Trouble is that the Right Extruder is mechanically disabled at the moment (waiting spare parts) I wh...
by Vagulus
Thu Jun 04, 2020 12:55 am
Forum: Software
Topic: Running Slic3r gCode on Pro2
Replies: 7
Views: 447

Running Slic3r gCode on Pro2

cGode generated to the Slic3r slicer Slic3r.png appears to load into my Pro2 but it does nothing except 'Home' the Head then continuously increment the timer. Slic3r Settings are for the RepRap (Marlin/Sprinter) gCode flavour and I have set Printer and Filament settings (I think) appropriately. What...
by Vagulus
Wed Jun 03, 2020 5:21 am
Forum: General
Topic: Catastrophic Printing Failure
Replies: 8
Views: 975

Re: Catastrophic Printing Failure

Gee! You really have got stuck into this!
Thanks for explaining.
I'll investigate
by Vagulus
Wed Jun 03, 2020 12:13 am
Forum: General
Topic: Catastrophic Printing Failure
Replies: 8
Views: 975

Re: Catastrophic Printing Failure

This is how our Pro2 Plus greeted me when I arrived at work this morning. The Left hot end had spun off the throat and was embedded in the print; but the extruder kept on trucking, and had vomited about 10 meters of filament inside the printer during the night. The (unused) Right hot end heater blo...
by Vagulus
Tue Jun 02, 2020 10:23 pm
Forum: General
Topic: Catastrophic Printing Failure
Replies: 8
Views: 975

Re: Catastrophic Printing Failure

Nice to know that I am not the only person in the world who has these problems? :D What material are you printing? eSun PLA+ I printed after that I used a 1/4" aluminum bed with PEI sheet secured with double-sided 3D adhesive sheet. Is the Ally bed a standard part? Did you have it cut? What's P...
by Vagulus
Tue Jun 02, 2020 12:17 pm
Forum: General
Topic: Catastrophic Printing Failure
Replies: 8
Views: 975

Re: Catastrophic Printing Failure

what the sdhfbsdlfsd on the last photo? The 'sdhfbsdlfsd' is a Thumb Drive (A.K.A. USB Memory Stick or just plain wotchyamakallit). It is there to give you a sense of scale. I think your bed too close to the nozzle and the nozzle(s) hit printed layer. It'd have to be pretty close to the bed to bend...
by Vagulus
Tue Jun 02, 2020 1:24 am
Forum: General
Topic: Catastrophic Printing Failure
Replies: 8
Views: 975

Catastrophic Printing Failure

This is what I was trying to print: 2000602-ideaMakerView-640x387.png There are two parts - they fit the pillars of a prototype I am working on. They are quite large: 200602_PrintLayout-640x480.png My machine is a Pro2 fitted with 0.8 mm nozzles. Overnight it created this: 200602_Progression-640x480...
by Vagulus
Tue Jun 02, 2020 1:03 am
Forum: General
Topic: Using Ultimaker Cura with a Pro2
Replies: 5
Views: 3003

Re: Using Ultimaker Cura with a Pro2

Thanks for that, but you didn't get the question. :(
I would like to know whether the gCode produced by the Ultimaker Cura 4.6.1 Slicer is compatible with a Raise3D Pro2 Dual Extruder Printer.
Thanks

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