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by mhackney
Fri May 26, 2017 9:25 am
Forum: Rostock MAX v2
Topic: Hardened Steel Hobbed Drive Roller?
Replies: 3
Views: 67

Re: Hardened Steel Hobbed Drive Roller?

+1 on Jim's recommendation. Super critical for any "hard" filament.
by mhackney
Thu May 25, 2017 12:57 pm
Forum: Rostock MAX v2
Topic: Hardened Steel Hobbed Drive Roller?
Replies: 3
Views: 67

Re: Hardened Steel Hobbed Drive Roller?

I've run 20+ spools of CF (not fiberglass) PETG and PLA with no issues on the Bondtech QR extruder. It's - push on both sides of the filament - design is much better for flexibles and abrasive filaments like these.
by mhackney
Thu May 25, 2017 9:35 am
Forum: What are YOU making?
Topic: Car Body work (Full Size).
Replies: 3
Views: 94

Re: Car Body work (Full Size).

Wow! You need the Part Daddy Delta.
by mhackney
Wed May 24, 2017 6:44 pm
Forum: General Tips 'N Tricks
Topic: PEI Print Surface How To - recap
Replies: 46
Views: 15515

Re: PEI Print Surface How To - recap

Ah, yes, the pre-coated adhesive is much easier to work with.
by mhackney
Wed May 24, 2017 12:34 pm
Forum: General Tips 'N Tricks
Topic: PEI Print Surface How To - recap
Replies: 46
Views: 15515

Re: PEI Print Surface How To - recap

I still don't know how to reconcile claims that "brand X PEI" doesn't work as well. I have PEI from every vendor I know about on 20+ different printers and I've never had one that doesn't work well AFTER a good cleaning and light sanding.

Even the thin stuff is fine, it works well.
by mhackney
Wed May 24, 2017 11:56 am
Forum: Mods and Upgrades
Topic: Cheapskate and arms options
Replies: 5
Views: 167

Re: Cheapskate and arms options

Here's an example of the type of geometry that can be problematic for mag ball arms printed in PLA: Screen Shot 2017-05-24 at 11.48.28 AM.png To mitigate, improve cooling significantly, use .1mm layers, slow down significantly, add support to the hole/opening, etc. It can be printed with mag ball ar...
by mhackney
Wed May 24, 2017 10:27 am
Forum: The Lounge
Topic: A question of smell
Replies: 6
Views: 191

Re: A question of smell

Very interesting indeed. A new friend I visited recently in Calgary had a beautiful spool of amber PLA sitting on his shelf. I commented and he said "it sticks, it's yours if you want it" I jumped on it, I have a thing for translucent amber it seems. I brought it home and it prints beautif...
by mhackney
Wed May 24, 2017 10:01 am
Forum: Mods and Upgrades
Topic: Cheapskate and arms options
Replies: 5
Views: 167

Re: Cheapskate and arms options

See Delta Arm Joint Musings for the whole story. I respectfully submit that magnetic ball arms - like all mechanical joint solutions - are a tradeoff. I have 1000s of hours of experience with them and all the others in my post above so, much like that insurance commercial, "I know a thing or tw...
by mhackney
Wed May 24, 2017 9:49 am
Forum: General Tips 'N Tricks
Topic: PEI Print Surface How To - recap
Replies: 46
Views: 15515

Re: PEI Print Surface How To - recap

PLA - 60°C first layer and then 55°C for the rest of print
ABS - 75°C for all layers
PETG - 70°C for all layers

And DeltaCon is right on - let the bed come up to temp and equilibrate for at least 10 minutes at temps below 60° and much longer for higher temps.
by mhackney
Tue May 23, 2017 2:51 pm
Forum: The Lounge
Topic: A question of smell
Replies: 6
Views: 191

Re: A question of smell

My hypothesis is the Prometheus stinks. But really, the only thing that could cause a smell is melt temperature OR the length of the melt zone and it's ability to outgas to the atmosphere. I suspect that even though you measured the same temp, it probably isn't. What kind of probe are you using? You...
by mhackney
Tue May 23, 2017 10:11 am
Forum: Members Marketplace
Topic: BQ Cyclop 3D Scanner
Replies: 0
Views: 55

BQ Cyclop 3D Scanner

I built this Cyclops from the kit and haven't touched it in at least a year. Everything is there, assembled and ready. The camera modification has already been done too. These kits are selling for $199 from China with injection molded parts - this one is printed. IMG_3276.JPG IMG_0096.JPG IMG_2489.J...
by mhackney
Mon May 15, 2017 9:20 pm
Forum: Rostock MAX v3
Topic: Dual Extrusion
Replies: 12
Views: 594

Re: Dual Extrusion

No multi extrusion is "simple" and only you can determine if it is "worth it" or not! If you have a legitimate problem you need to solve and multi extrusion is the solution, then it can be made to work. I can't speak for Repetier on RAMBo though as I have very little experience w...
by mhackney
Mon May 15, 2017 2:31 pm
Forum: Rostock MAX v3
Topic: Dual Extrusion
Replies: 12
Views: 594

Re: Dual Extrusion

Yes. I used the 713Maker effector and Chimera mount. You should be able to config Repetier and RAMBo but my experience is with Duet and RepRapFirmware. I've also done the Kracken on a Rostock V1 - that was quite the experience.
by mhackney
Sun May 14, 2017 10:19 pm
Forum: Mods and Upgrades
Topic: Aero Mount
Replies: 9
Views: 351

Re: Aero Mount

RE: the nozzle offset. It isn't really that big of a deal at this level. I printed for several years with one of 4 nozzles on a Kraken and never had an issue. One of the best hot ends I've had in fact for single filament printing.
by mhackney
Sun May 14, 2017 5:57 pm
Forum: Mods and Upgrades
Topic: Aero Mount
Replies: 9
Views: 351

Re: Aero Mount

Having already designed a mount for the Rostock MAX for both the Titan Aero and Bondtech BMG systems, I'll say: 1 - When adding that much weight to the effector, does it matter in a practical sense whether it is above or below the effector. Since the weight is at the end of an arm, it seems like pla...
by mhackney
Thu May 11, 2017 8:17 pm
Forum: Duet
Topic: RostockMAX V3 to Duet WiFi conversion instructions
Replies: 68
Views: 1922

Re: RostockMAX V3 to Duet WiFi conversion instructions

Thanks David.

The info on using the [url=https://duet3d.com/wiki/Connecting_an_LCD_control_panel#Connecting_a_PanelDue
]PanelDue SD card is here[/url].
by mhackney
Sun May 07, 2017 9:03 am
Forum: Troubleshooting
Topic: E3D V6 jamming
Replies: 24
Views: 689

Re: E3D V6 jamming

Yeah but those regular bands in the first layer are an early indication of the pain to come! Something is not right.

Can you take a side view photo of your hot end so I can see the complete outline of the heater block and nozzle.
by mhackney
Sat May 06, 2017 12:47 pm
Forum: Rostock MAX v3
Topic: LCD Shows blue but no bars on first power up.
Replies: 6
Views: 183

Re: LCD Shows blue but no bars on first power up.

Given your other post about the bed heating as soon as you power up, I recommend you go through ALL the wiring carefully again. As they say in Tuscatillo "Somthin' ain't right."
by mhackney
Sat May 06, 2017 12:45 pm
Forum: Rostock MAX v3
Topic: Does bed heat on first power up?
Replies: 1
Views: 75

Re: Does bed heat on first power up?

No, it should not heat up until you tell it to either by running a print or entering a bed temperature in the controller. If it is heating as soon as you turn the bed on, you have a wiring or other problem.
by mhackney
Fri May 05, 2017 4:15 pm
Forum: Troubleshooting
Topic: Parts undersize in both X & Y directions
Replies: 1
Views: 91

Re: Parts undersize in both X & Y directions

viewtopic.php?f=77&t=9625&hilit=scaling

No recompiling or flashing necessary.
by mhackney
Fri May 05, 2017 9:51 am
Forum: Troubleshooting
Topic: E3D V6 jamming
Replies: 24
Views: 689

Re: E3D V6 jamming

This shows serious under extrusion so it was a jam waiting to happen.
by mhackney
Fri May 05, 2017 9:23 am
Forum: Troubleshooting
Topic: E3D V6 jamming
Replies: 24
Views: 689

Re: E3D V6 jamming

I don't think you have problems with filament being old or fat. You are experiencing something systemic that is not right. IR thermometers are not helpful and usually just make things worse since they are so inaccurate in this application. I think you can trust your thermistor and heater given that ...
by mhackney
Wed May 03, 2017 7:34 pm
Forum: Mods and Upgrades
Topic: Thermocouple Upgrade
Replies: 14
Views: 348

Re: Thermocouple Upgrade

Ouch, that's hot! j/k
by mhackney
Wed May 03, 2017 12:43 pm
Forum: What are YOU making?
Topic: Giant Fidget Spinner -> PartDaddy at MakerFaire Lansing
Replies: 3
Views: 236

Re: Giant Fidget Spinner -> PartDaddy at MakerFaire Lansing

That thing could knock you out! Careful there Steve.

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