Search found 397 matches

by jdurand
Fri Feb 13, 2015 9:21 pm
Forum: Mods and Upgrades
Topic: E3D has released new hotends!
Replies: 216
Views: 31415

Re: E3D has released new hotends!

What needs brazing?
by jdurand
Fri Feb 13, 2015 4:35 pm
Forum: Mods and Upgrades
Topic: E3D has released new hotends!
Replies: 216
Views: 31415

Re: E3D has released new hotends!

Looking at their drawing (CY-COOLER-BLOCK-AIR), it seems like it wouldn't be hard to make a water cooled version. Since I haven't received my Chimera yet, maybe I'll just make a water cooling block and put the stock cooler block and fan aside. Might make it easier to mount it to the effector holes t...
by jdurand
Fri Feb 13, 2015 1:19 am
Forum: Mods and Upgrades
Topic: E3D has released new hotends!
Replies: 216
Views: 31415

Re: E3D has released new hotends!

I see my Chimera was shipped today. I had originally ordered a Cyclops but E3D talked me out of it. At least once I install the heatsink I'll be able to switch to the Cyclops if that seems the better deal.
by jdurand
Thu Feb 12, 2015 10:02 pm
Forum: Smoothieboard and variants
Topic: Heuristic (AI) calibration for delta printers on Smoothie
Replies: 524
Views: 82735

Re: Heuristic (AI) calibration for delta printers on Smoothi

What about an ultrasonic sensor, don't know if the beam could be narrowed.
by jdurand
Thu Feb 12, 2015 12:38 pm
Forum: Australia and New Zealand
Topic: Operation "stick to the damn glass ya bastard!" (AU)
Replies: 26
Views: 5669

Re: Operation "stick to the damn glass ya bastard!" (AU)

Last time I had Fosters it said it was brewed in Canada. No big surprise, many of the imported products here aren't made where you think they were, some aren't even imported ("import style" or something like that). There's only something like a dozen companies worldwide that produce food (...
by jdurand
Thu Feb 12, 2015 12:57 am
Forum: The Lounge
Topic: Laugh of the day
Replies: 31
Views: 3902

Re: Laugh of the day

http://imgs.xkcd.com/comics/3d_printer.png http://comicjk.com/Pics/Comic628.gif http://cubeheroblog.files.wordpress.com/2012/04/wait_til_its_able_to_print_pennies-jpeg-scaled1000.jpg http://cdn.themetapicture.com/media/funny-Play-Doh-3D-printer.jpg http://funny-pictures-quotes.com/wp-content/upload...
by jdurand
Thu Feb 12, 2015 12:44 am
Forum: The Lounge
Topic: Laugh of the day
Replies: 31
Views: 3902

Re: Laugh of the day

Then there's the 10% of us producing all sorts of useful stuff. Sent off a prototype of a part to a customer today. It's a part to replace a poorly designed/made part that his business uses. So far my quickly designed prototypes seem as good as the commercial injection molded part. Now to tweak it i...
by jdurand
Tue Feb 10, 2015 8:08 pm
Forum: Troubleshooting
Topic: Vertical Banding Revisited
Replies: 233
Views: 37306

Re: Vertical Banding Revisited

Another thing about stepping motors, only full steps (one coil on at a time) are guaranteed to be equal. Since half and micro stepping has both coils on at once it depends on both coils having EXACTLY the same characteristics. As we live in the real world (says the guy making new-age stuff with two ...
by jdurand
Tue Feb 10, 2015 6:45 pm
Forum: The Lounge
Topic: CAM software
Replies: 37
Views: 5526

Re: CAM software

I just signed up for BobCADs "hurry, expires soon" offer to join their mailing list for discounts. At least I know when the sales droid contacts me that we start at a 50% discount off list. That puts their 2-1/2 D down in the price the TurboCAD plugin cost some time back.
by jdurand
Tue Feb 10, 2015 3:40 pm
Forum: New Member introduction
Topic: New Forum member
Replies: 23
Views: 2680

Re: New Forum member

Looks too clean! :)
by jdurand
Tue Feb 10, 2015 12:45 pm
Forum: The Lounge
Topic: CAM software
Replies: 37
Views: 5526

Re: CAM software

Just for mechanical I used to use AutoCAD but when they went to a Windows version it went downhill. For example, I could no longer use my nice multi-button bitpad (maybe someday we'll get back to those when Windows catches up with the past). I eventually traded that in for TurboCAD and currently use...
by jdurand
Tue Feb 10, 2015 12:29 pm
Forum: The Lounge
Topic: Laugh of the day
Replies: 31
Views: 3902

Re: Laugh of the day

Image
by jdurand
Tue Feb 10, 2015 4:59 am
Forum: The Lounge
Topic: CAM software
Replies: 37
Views: 5526

CAM software

Any suggestions for decent 3D or at least 2-1/2D CAM software for a small mill? The latest update to my CAD software broke the CAM plugin (again). They haven't really updated the CAM plugin in years so only charge me for the main program updates, but still... Anyway, I've got some very simple DXF to...
by jdurand
Mon Feb 09, 2015 12:18 pm
Forum: Troubleshooting
Topic: That's it - Fed up with the extruder thermistor
Replies: 8
Views: 1311

Re: That's it - Fed up with the extruder thermistor

That cross talk and radio interference is why all my wires are twisted pairs. For the steppers I twisted each coil as a pair. All my control, power, and thermistor lines are CAT-5 wire which even has a different twist ratio for each pair. The designers of CAT-5 did that to reduce crosstalk even more.
by jdurand
Mon Feb 09, 2015 2:24 am
Forum: The Lounge
Topic: Other automated printer
Replies: 2
Views: 599

Other automated printer

Actually, more of a writer.

Image
by jdurand
Sun Feb 08, 2015 9:38 pm
Forum: Troubleshooting
Topic: Vertical Banding Revisited
Replies: 233
Views: 37306

Re: Vertical Banding Revisited

The thing I just printed has the pattern. Narrow spacing compared to the infill. You can see it in the attached picture.

Infill 10%
Slicer S3D
Speed default (50mm/s infill, don't remember what perimeters are).
by jdurand
Sun Feb 08, 2015 7:56 pm
Forum: New Member introduction
Topic: Waiting for delivery
Replies: 86
Views: 10168

Re: Waiting for delivery

Here's the Jet Royal Blue PLA. Not a great print, needs tweaking. I had to turn up the temperature when it started curving in for the base, it was leaving gaps. I tried a previous one at 190 and aborted since the gaps were big enough to bowl through. The MakerGeek food grade PLA prints a bit better ...
by jdurand
Sun Feb 08, 2015 6:10 pm
Forum: Rostock MAX v2
Topic: Upgrading Heater Bed
Replies: 4
Views: 1154

Re: Upgrading Heater Bed

PWM or not, the max current draw of the power supply shouldn't be exceeded. Not unless you like replacing power supplies. Many won't trip when driving a PWM because the pulse is too short for them to see, they'll just burn out. Also, very very few "regular" power supplies current limit. Th...
by jdurand
Sun Feb 08, 2015 11:32 am
Forum: Troubleshooting
Topic: Vertical Banding Revisited
Replies: 233
Views: 37306

Re: Vertical Banding Revisited

I just looked at a translucent piece I just printed, there is a slight ripple on two of the three sides of the part and since I can see the infill (10%) I can tell there's a lot more ripples than infill. I'm thinking it's the line segments printed or something like that.

I'm using S3D.
by jdurand
Sun Feb 08, 2015 11:27 am
Forum: Troubleshooting
Topic: Onyx heated bed noise
Replies: 9
Views: 842

Re: Onyx heated bed noise

Correct, but depending on metal thickness that may or may not be easy.
by jdurand
Sun Feb 08, 2015 9:57 am
Forum: New Member introduction
Topic: Waiting for delivery
Replies: 86
Views: 10168

Re: Waiting for delivery

PEEK fan replaced, entry to the aluminum adapter and brass Bowden fitting have been chamfered so the filament doesn't hang up now. Tweaked some settings in S3D, and we have: 0802-063202.jpg Not quite up to the Afinia's finish yet, but it's using a filament that Afinia won't print (at least for me), ...
by jdurand
Sun Feb 08, 2015 9:37 am
Forum: Troubleshooting
Topic: Onyx heated bed noise
Replies: 9
Views: 842

Re: Onyx heated bed noise

The vibration could wear the solder mask off the traces/heater and eventually give a short or crack. Depending on circumstances, this could be a long time or a short time.
by jdurand
Sun Feb 08, 2015 12:24 am
Forum: Troubleshooting
Topic: Onyx heated bed noise
Replies: 9
Views: 842

Re: Onyx heated bed noise

Eddie currents from the PWM signal is vibrating the aluminum. Yes, aluminum is magnetic in the presence of an AC or pulsing field. Look at the rotating bit in an mechanical power meter...aluminum. I've had large power transformers singing from multi-thousand Watt pulsed loads, have to be careful of ...
by jdurand
Sat Feb 07, 2015 6:32 pm
Forum: General Announcments
Topic: Rostock MAX purchase poll
Replies: 50
Views: 16712

Re: Rostock MAX purchase poll

I had to click Other. After using the Afinia for a few years I've pretty much maxed out what I can do on it. We're going to keep it, it still does some things well. The final straw was when I had new projects come up that required "food safe" filament and also some of the more exotic mixes...
by jdurand
Sat Feb 07, 2015 5:44 pm
Forum: General Tips 'N Tricks
Topic: PEI print bed surface experiments
Replies: 969
Views: 136757

Re: PEI print bed surface experiments

I've been using a small piece (5" x 5") of BuildTak to print PLA things on my old printer. I've done about 130 prints on one piece of BuildTak and it's still going strong. Holds tight but when I wedge the sharpened putty knife under a corner the item pops right off. The sharpened putty kni...

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