Search found 36 matches

by lumpy_potato
Tue Aug 30, 2016 11:29 am
Forum: RostockMAX v3
Topic: Rostock MAX v3...
Replies: 108
Views: 74563

Re: Rostock MAX v3...

Is there any chance of a conversion kit for V2 -> V3? I have to do a lot of fixes to my V2, and it almost seems like the V3 is the answer to the vast majority of them. And I can't shell out 1K for the new kit.
by lumpy_potato
Sat Oct 31, 2015 1:05 pm
Forum: Rostock MAX v2
Topic: Odd behavior for Z0
Replies: 3
Views: 3079

Re: Odd behavior for Z0

A round number for H-radius is a pretty odd thing. Have you tried adjusting it to get them all at the same height? I had similar problems where I would set the Z0 for the middle, and the edges would be way off. Also, check that your endstops are fairly tightly mounted. they are small enough I've ...
by lumpy_potato
Sat Oct 31, 2015 12:17 pm
Forum: Rostock MAX v2
Topic: Odd behavior for Z0
Replies: 3
Views: 3079

Odd behavior for Z0

Hello, So I finally got the Max working again, but am running into some...oddities. To sum the prior: * Updated carriages to the new version * Tricklaser CF arms * Added astrodyn dampers * More disassembly-reassembly then I care to admit The issue I'm having is with fluctuations in Z0. For some ...
by lumpy_potato
Sun Sep 06, 2015 11:09 am
Forum: General Announcments
Topic: New carriages are available!
Replies: 49
Views: 50405

Re: New carriages are available!

That' will be a dream come true in a lot of ways :D One note: With the current axle holder, it is the exact right width to fit the TrickLaser CF arms when removed from the original carriages (~36cm as I vaaguely recall). If you guys can stick to that it will make life easier for those with the ...
by lumpy_potato
Sat Sep 05, 2015 9:16 pm
Forum: General Announcments
Topic: New carriages are available!
Replies: 49
Views: 50405

Re: New carriages are available!

Ok, after further review, it does decrease at the edge of the heated bed between the towers. And slightly increase at the towers. So, the print area is slightly smaller with 269 mm arms (my oversight). Would that mean that, in the future, 270mm arms would bring things back into spec? Or something ...
by lumpy_potato
Wed Aug 26, 2015 6:04 am
Forum: Rostock MAX v2
Topic: Belt tensioners for RoMaxV2
Replies: 9
Views: 6485

Re: Belt tensioners for RoMaxV2

Belt tension is kind of a weird thing. There's no real tool that people have easy access to in order to adjust them. You want the belt tight, but not too tight. The tighter it is, the more force the stepper motor has to apply in order to move it. You certainly don't want it tight enough that ...
by lumpy_potato
Wed Aug 26, 2015 6:00 am
Forum: Troubleshooting
Topic: How to clean the Glass Plate
Replies: 10
Views: 6866

Re: How to clean the Glass Plate

One coat in stripes with as little overlap as possible is what I usually aim for. I only really use glue for prints that have supports or small areas on the build plate to make sure they don't pop off halfway through the print.
by lumpy_potato
Tue Aug 25, 2015 9:50 am
Forum: Troubleshooting
Topic: How to clean the Glass Plate
Replies: 10
Views: 6866

Re: How to clean the Glass Plate

When you decide to try hairspray, Windex does an excellent job of cleaning it off. Maybe its the one I used, but I found that using windex seemed to make it harder for prints to stick afterwards. Definitely do not spray it on a hot bed, any time I tried to heat the bed right after windexing I would ...
by lumpy_potato
Mon Aug 24, 2015 7:37 pm
Forum: Troubleshooting
Topic: Uneven Z-travel in XY plane
Replies: 8
Views: 5205

Re: Uneven Z-travel in XY plane

Pity. I'll be using it moving forward at least.

Appreciate your help in all of this.
by lumpy_potato
Mon Aug 24, 2015 9:54 am
Forum: Troubleshooting
Topic: Uneven Z-travel in XY plane
Replies: 8
Views: 5205

Re: Uneven Z-travel in XY plane

Thanks - actually that metric is the first I've had of anything concrete as far as belt tension. There are a few threads were people were aiming to have a level of pluck where you could use a guitar tuner to pick up the tone! May I suggest that, if its not already in there, to add that particular ...
by lumpy_potato
Sun Aug 23, 2015 9:21 pm
Forum: Troubleshooting
Topic: Uneven Z-travel in XY plane
Replies: 8
Views: 5205

Re: Uneven Z-travel in XY plane

:D Thanks Gene, One question while I've got you - its been fine for nearly a year now, but the belts were not as tight as they could (should?) be. My thought is that tightening the belts transmitted more vibration than previous, vibrating the grubscrews loose. While the belts were relatively loose ...
by lumpy_potato
Sun Aug 23, 2015 2:14 pm
Forum: Troubleshooting
Topic: Uneven Z-travel in XY plane
Replies: 8
Views: 5205

Re: Uneven Z-travel in XY plane

:D I'm leaving it off FOR NOW, only because I'm planning on taking the whole motor assembly out for dampers and other fun stuff. But when I'm done with thati t will be THREAD LOCKER ALL THE WAY BOI Unfortunately that wasn't the core of the problem. I'm still seeing uneven travel in all directions ...
by lumpy_potato
Sat Aug 22, 2015 3:12 pm
Forum: Troubleshooting
Topic: Uneven Z-travel in XY plane
Replies: 8
Views: 5205

Uneven Z-travel in XY plane

Hi all! I broke things again in the pursuit of higher quality prints. I tried tightening down my belts further - so they had a nice 'snap' when pulled instead of a loose flump. All three feel about the same. However, since then, all accuracy as far as travel has gone out the window. Z0 will change ...
by lumpy_potato
Thu Aug 20, 2015 8:27 pm
Forum: Troubleshooting
Topic: Quality Calibration Assist
Replies: 3
Views: 3335

Re: Quality Calibration Assist

Question for you Polygon (or anyone else) Finally got everything dialed in more or less, and was checking to see how speed effected print quality. at <30mm, it definitely looks better. There is still some ridging, but it is far reduced. I need to do a bit more tweaking but I don't think the core of ...
by lumpy_potato
Wed Aug 05, 2015 8:07 am
Forum: Rostock MAX v2
Topic: Belt tensioners for RoMaxV2
Replies: 9
Views: 6485

Re: Belt tensioners for RoMaxV2

How tight do you feel belts should be? Like get a finger under the belt and pull a bit, and its taut? or you can't really pull the belt at all?
by lumpy_potato
Tue Aug 04, 2015 2:50 pm
Forum: Troubleshooting
Topic: Quality Calibration Assist
Replies: 3
Views: 3335

Re: Quality Calibration Assist

Good idea. Will have to look at extrusion again...hopefully thats it. I'm not printing for the next week or so, we are cat sitting and she's a bit too curious about the RoMax. Plus a heated bed is impossible for a cat to ignore.
by lumpy_potato
Sat Aug 01, 2015 7:06 pm
Forum: Troubleshooting
Topic: Quality Calibration Assist
Replies: 3
Views: 3335

Quality Calibration Assist

Hey all, So after much adjustments, here's where I am at: http://imgur.com/a/hNVI3 There are two primary issues I run into on prints: 1) Horizontal ridging. I'm assuming this is mechanical but I'm not sure where to look. Belts are fairly taut, I can pull about an inch and they are nice and taut ...
by lumpy_potato
Fri Jul 31, 2015 4:46 pm
Forum: Rostock MAX v2
Topic: stepper motors are super hot!
Replies: 50
Views: 39300

Re: stepper motors are super hot!

If I had access to a machining setup I could probably experiment with a heatsink like that but in NYC access to such spaces is terribly limited.

That said, I might be able to buy some aluminum plate at a hardware store and cut it down by hand...
by lumpy_potato
Thu Jul 30, 2015 5:23 pm
Forum: Rostock MAX v2
Topic: stepper motors are super hot!
Replies: 50
Views: 39300

Re: stepper motors are super hot!

I bought a northbridge cooler + heatsink for ~8$. Still need to mount it, its a little long so I think I have to adjust the extruder 'forward' a little bit to clear the delta arms fully. With the changes to voltage it sits at ~55-60C, which is still a little to hot for my tastes, so I'm hoping to ...
by lumpy_potato
Fri Jul 24, 2015 11:50 am
Forum: Rostock MAX v2
Topic: Wiring in the Base
Replies: 14
Views: 8904

Re: Wiring in the Base

Looks like they soldered the endstops / motors directly to the board?
by lumpy_potato
Thu Jul 23, 2015 8:53 am
Forum: Filament
Topic: PETG (PET)
Replies: 13
Views: 17084

Re: PETG (PET)

I'm going to pick up a pair of rolls on Saturday or Sunday. I'm a little concerned as the RoMax2 hotend is suggested to max out at 245C and PETG seems to print at 230-250 so I'm right at that upper range, but I figure it should be OK. Hopefully it ends up being something awesome :D
by lumpy_potato
Tue Jul 21, 2015 3:22 pm
Forum: Rostock MAX v2
Topic: Wiring in the Base
Replies: 14
Views: 8904

Re: Wiring in the Base

I had the 2 standard cheesy wires and it would not get to 100. 95 was the max, and over time it slowly dropped to 80 when i realised that the connctor going to the bed was fried. Then i made an ssr and put 24v to the bed. That worked fine untill i did something stupid and burned my ssr. Now i am ...
by lumpy_potato
Tue Jul 21, 2015 3:21 pm
Forum: Filament
Topic: PETG (PET)
Replies: 13
Views: 17084

Re: PETG (PET)

I've been using PETG from Microcenter with good results. 70°C bed, 247°C extruder, PEI bed surface Sliced with MatterControl I was able to reduce stringing and blobs by adding a wipe before retracting. I can attest that the PETG is strong and flexible, does not break as easily as PLA. I was able to ...
by lumpy_potato
Tue Jul 21, 2015 11:36 am
Forum: Troubleshooting
Topic: Unsolved Mystery. Weird Z0 behavior around build perimeter.
Replies: 500
Views: 307333

Re: Unsolved Mystery. Weird Z0 behavior around build perimet

Thanks - does the procedure I described more or less sound right? Right now I'm still doing the method prescribed in the build manual (at least in the short term)
by lumpy_potato
Tue Jul 21, 2015 10:14 am
Forum: Troubleshooting
Topic: Unsolved Mystery. Weird Z0 behavior around build perimeter.
Replies: 500
Views: 307333

Re: Unsolved Mystery. Weird Z0 behavior around build perimet

So 99% of this is right over my head, but I do have one question: What Dial Indicator model are you guys using? The ones I've been able to find seem like the probe would be too short to go all the way to where it needs to be? I'm doing the paper-calibration for now at least to get back to printing ...

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