What governs print quality January 20, 2014 11:48PM |
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Re: What governs print quality January 21, 2014 01:59AM |
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Re: What governs print quality January 21, 2014 02:12AM |
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Re: What governs print quality January 21, 2014 06:05AM |
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Re: What governs print quality January 21, 2014 06:38AM |
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Re: What governs print quality January 21, 2014 07:11AM |
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Re: What governs print quality January 21, 2014 10:05AM |
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Re: What governs print quality January 21, 2014 10:25AM |
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Re: What governs print quality January 21, 2014 10:41AM |
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I should have said some people that post here don't like me to post pictures have received quite a few negative replies. But again since he seems to be new here and he comes from machining background I thought I'd post those pictures. And let him know that Mach 3 or EMC 2 could be usedQuote
DeuxVis
Quote
cnc dick
they don't like me to post pictures here
Are you joking ? We all love seeing pictures of machines and parts !
Re: What governs print quality January 21, 2014 04:26PM |
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Re: What governs print quality January 21, 2014 05:41PM |
Registered: 10 years ago Posts: 474 |
I don't know why I've seen thousands of the same pics of kits and hot ends that are out there. Why is it when I show a couple pics I get all this negativity yes they are the the same pics. And the reason I posted them and I stated is because Bill seems to be new here I think it was his first post and thought he might like to see them. It's was his post it was to benefit him not everybody elseQuote
VDX
Hi cnc_dick,
AFAIK this 'picture-antipathy' comes from your repetition of the specific picture series in many threads, so it comes out like spamming.
Most users browse only through the new marked threads in the forums and grumble when finding 5 to 6 times the same (image-heavy) post in different forums ...
Re: What governs print quality January 21, 2014 06:01PM |
Registered: 12 years ago Posts: 1,236 |
Quote
cnc dick
I don't know why I've seen thousands of the same pics of kits and hot ends that are out there. Why is it when I show a couple pics I get all this negativity yes they are the the same pics. And the reason I posted them and I stated is because Bill seems to be new here I think it was his first post and thought he might like to see them. It's was his post it was to benefit him not everybody elseQuote
VDX
Hi cnc_dick,
AFAIK this 'picture-antipathy' comes from your repetition of the specific picture series in many threads, so it comes out like spamming.
Most users browse only through the new marked threads in the forums and grumble when finding 5 to 6 times the same (image-heavy) post in different forums ...
Re: What governs print quality January 21, 2014 06:39PM |
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Re: What governs print quality January 21, 2014 06:53PM |
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Re: What governs print quality January 21, 2014 07:08PM |
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Re: What governs print quality January 21, 2014 07:22PM |
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Re: What governs print quality January 21, 2014 08:22PM |
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Support is usually a different material than your part material I've never had good luck with same material support I think different material is better so it doesn't bond very well and it can be broken away easily or depending on what material may be dissolved. So you need a different head loaded with different material for support and a head loaded with your part material. I think the printer he is looking at has only a single print head part could be made with a single head if he split it and then printed it and glued together afterwards. Or try same material support but I think it would stick way too much because it's a total right angle shelfQuote
Ohmarinus
Why would you need two heads for support material?...
Re: What governs print quality January 21, 2014 09:17PM |
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Re: What governs print quality January 21, 2014 10:23PM |
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Re: What governs print quality January 22, 2014 12:35PM |
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Re: What governs print quality January 22, 2014 12:53PM |
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Re: What governs print quality January 22, 2014 03:05PM |
Registered: 10 years ago Posts: 474 |
if you Google large scale repstrap you should come up with a couple things. You should be able to find a post I had at the cnczone forum or the Mach 3 forum. I use Mach 3 for the machine operating system which is a CNC based program here is a quick small video[www.facebook.com]Quote
jzatopa
CNC Dick do you have a writeup on the details of your machine (what controllers, software, etc.) you are using? I would also love to see a video of your printer printing.
Cozmicray AFAIK marlin is able to handle arc movements, there just aren't any slicers that output arc data.
Re: What governs print quality January 22, 2014 04:56PM |
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Re: What governs print quality January 22, 2014 06:26PM |
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Re: What governs print quality January 22, 2014 09:25PM |
Registered: 10 years ago Posts: 474 |
if I remember correctly I think I set it that 200 mm a second Rapids or Max speed. The main thing with 3-D printing is you need fast acceleration and deceleration to get good quality prints with nice corners.Quote
garyhlucas
Richard,
I'm putting an extruder head on my CNC. Since printers tend to move faster than mills I was wondering how fast your machine can move reliably? I currently have my motors all tuned for 100ipm rapids in Mach 3. However I did some experimenting the other day and I don't seem to have any problems at 350ipm. My machine is a little bit unusual configuration. Stationary table, moving head, 18" x 18" x 18" travels, 12" x 12" heated bed for printing. I can turn the head and operate as a horizontal mill. I have a lathe tool post behind the spindle for use with a Harbor Freight lathe bed, headstock and tailstock. The 3D extruder mounts behind that and I don't need to remove anything but the tool to use one of he three devices.
[s811.photobucket.com]
Re: What governs print quality January 22, 2014 09:29PM |
Registered: 10 years ago Posts: 474 |
Sounds good 250 mm a second with 5 mm pitch with 16mm dia screw of course depending on length you could end up with screw wipQuote
VDX
... I'm actually reworking a servo-driven CNC-mill as basis for my laser-works.
My old Isel-gantry with halfstep-drivers and 16/5 lead-screws (12.5 microns per step) can move with up to 50mm/s, but I'm laser-engraving only with max. 20mm/s to avoid resonancies
The other mill with servos (I'm now modifying) has the same 16/5 lead screws -- but when tested yesterday some special servo-drivers, that are controlled similar to steppers with DIR+STEP, I've managed to drive the axes without acceleration ramps with 40kHz and 100mm/s positiong speed (@2.5 microns encoder-step resolution), what can be maxed with higher voltage (tested with 24V, got today a 48V-PS) and proper acceleration to 750mm/s @300kHz stepping rate !!!
Received one of our new 4-axis stepper-controllers with 100kHz max. stepping frequency too, what would result in max. moving speeds of (only) 250mm/s ... now I have to test, what's possible with the complete machine running and engraving without resonancies ...
Re: What governs print quality January 23, 2014 03:47PM |
Registered: 11 years ago Posts: 265 |
Quote
bobc
So are you going to upload the contents of your photo album for every new user? You know, just in case they might want to see your printer. Can you think what happens if *everyone* does that?
I've said before, the proper place for stock pictures is on a blog, and you can post a link to them.
Re: What governs print quality January 23, 2014 09:02PM |
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Re: What governs print quality January 30, 2014 05:09AM |
Admin Registered: 16 years ago Posts: 13,891 |
Quote
cnc dick
Sounds good 250 mm a second with 5 mm pitch with 16mm dia screw of course depending on length you could end up with screw wipQuote
VDX
... I'm actually reworking a servo-driven CNC-mill as basis for my laser-works.
My old Isel-gantry with halfstep-drivers and 16/5 lead-screws (12.5 microns per step) can move with up to 50mm/s, but I'm laser-engraving only with max. 20mm/s to avoid resonancies
The other mill with servos (I'm now modifying) has the same 16/5 lead screws -- but when tested yesterday some special servo-drivers, that are controlled similar to steppers with DIR+STEP, I've managed to drive the axes without acceleration ramps with 40kHz and 100mm/s positiong speed (@2.5 microns encoder-step resolution), what can be maxed with higher voltage (tested with 24V, got today a 48V-PS) and proper acceleration to 750mm/s @300kHz stepping rate !!!
Received one of our new 4-axis stepper-controllers with 100kHz max. stepping frequency too, what would result in max. moving speeds of (only) 250mm/s ... now I have to test, what's possible with the complete machine running and engraving without resonancies ...
Re: What governs print quality January 30, 2014 06:37AM |
Admin Registered: 16 years ago Posts: 13,891 |