Show all posts by user

Re: Odd print problem - 10 years ago

The belts are like piano wire, so I do not think this is the problem (result was not improved when tightened), slic3r were running at lower speed and when lowering in Skeinforge the result improved. Visually there seem to be a slight twitch in the wrong direction when accelerating from zero on XY, I'll see if this can be caught on camera. It is almost as if the printer tries to create a sharp co

by hsbontop - Mendel90

Re: Odd print problem - 10 years ago

Printed a single wall cube which measured in at 0.55mm. Changed flow from 50 to 45 and it came out at 0.50mm. Minimal overextension and less protruding edges at lower speed, blobs still remains to be solved.

by hsbontop - Mendel90

Re: Odd print problem - 10 years ago

The corner blobs does not appear with Slic3r and the ridge along the edge seem to origin from a slight jerk (in the wrong direction) when turning the 90 degrees. Is this jerk adjustable?

by hsbontop - Mendel90

Re: Odd print problem - 10 years ago

The strange behaviour appears with Slic3r and Skeinforge, Slic3r settings found below. Noticed Slic3r was running absolute so this was changed to relative and a new print started at E501. Again massive overextrusion... Thought of the Swedish decimal "," might confuse but I can see no errors in the GCODE generated. ; filament used = 133.7mm (0.3cm3) ; avoid_crossing_perimeters = 0 ; bed_size = 2

by hsbontop - Mendel90

Re: Odd print problem - 10 years ago

It is standard 11:39 although with e3dv6 1.75mm direct. Extruded 50 mm with original 100 mm calibrated setting and it came out at exactly 50 mm. Changed to what gives nice prints (M92 E440) and only 37 mm is extruded. I must be overlooking somthing obvious here...

by hsbontop - Mendel90

Re: Odd print problem - 10 years ago

The initial cube is printed with the 100 mm calibration and the correct diameter, the result is however massive overextrusion. I will measure what lenght is extruded at 440 but there seem to be a rather large discrepancy. Retract speed ofcourse , sorry.

by hsbontop - Mendel90

Re: Odd print problem - 10 years ago

Decreased extruder e-steps from 501 to 495, 470, 450, 440 and 430 . Figured 440 was the value to use and printed a new cube. Much better result but still ridges at the edges and the blobs remains despite changing retract acceleration to 50 and distance to 0.5. Skeinforge decided not to have the fan on during the print (this has now been fixed), could this be the reason?

by hsbontop - Mendel90

Re: Odd print problem - 10 years ago

Switched to a e3dv6 and sliced with Skeinforge using nophead's 0.2PLA profile. No slant but some other things to look after: 1. Over shooting, acceleration problem, lose belts? 2. Smal blobs in one corner, to much retract? 3. Uneaven top surface, overextrusion? Amazing piece of engineering this, thanks nophead!

by hsbontop - Mendel90

Re: Odd print problem - 10 years ago

I'll try to isolate the problem in a structured manner and post the results. Thanks for the help so far.

by hsbontop - Mendel90

Re: Odd print problem - 10 years ago

Slic3r used indeed. I'll give that a try (or another slicer?).

by hsbontop - Mendel90

Re: Odd print problem - 10 years ago

Thanks for the quick reply. It is a self sourced printer. The problem only occurs when more than one axle at the time is moving, but not with nophead fw. I plan to go back to nophead's version just to ensure this is not the problem. All connections will be checked and I'll try to print with the bed turned off to see if power consumption is the cause. Next step will be to increase the motor curre

by hsbontop - Mendel90

Odd print problem - 10 years ago

After a fully successful first android print I updated to the Neil Darlow fw and since only prints in one direction at the time turn out well (like the calibration angle). Bi-directional prints (base of a cube) keeps being printed at a slant. Motor current was turned down a bit before the android print but has not been touched since. Pulleys seem not to slip but still remains to be confirmed (an

by hsbontop - Mendel90

Re: Updated Marlin customized for Mendel90 - 10 years ago

5 hours in i tried copying nopheads version back in, a bunch of errors occured. Extracted the nophead ZIP again and got his version to compile. Back to your version and suddenly it worked after replacing all of the ZIP folders with fresh ones, most likely there had been some old file left behind or something wrong with the folder structure. Thanks for the quick response!

by hsbontop - Mendel90

Re: Updated Marlin customized for Mendel90 - 10 years ago

I have tried 1.0.1 and 1.0.6 (following the instructions in post 1) but get the following error, solution anyone? In file included from Wire.cpp:25: /Wire.h:30:21: error: variant.h: No such file or directory In file included from Wire.cpp:25: Wire.h:36: error: expected `)' before '*' token Wire.h:90: error: ISO C++ forbids declaration of 'Twi' with no type Wire.h:90: error: expected ';' before

by hsbontop - Mendel90

Re: RepRap Discount Full Graphic LCD clone on Melzi 2.0 success. - 10 years ago

Would this adapter work?

by hsbontop - Sanguino(lolu)

Re: Sourcing Mendel90 parts - 10 years ago

Ended up buying phillips at the local hardware store, probably spent 15£ in total. The rods arrived today. I had ordered 8mm hardened ones but the diameter only measures 7.95mm which makes the LM8UU fit very loosely. The bearings fall by their own weight and there is a significant amount of play. Will this matter, one option could be to cut them open (lm8aj) and hope for a tighter fit. Any other

by hsbontop - Mendel90

Re: Sourcing Mendel90 parts - 10 years ago

The prices at Orbital are fantastic, shipping to Sweden might be a problem but I will certainly give them a call. It is a bit frustrating the nuts and bolts turned out to be the most expensive part but as I plan to spend the holidays assembling I might have no choice.

by hsbontop - Mendel90

Re: Sourcing Mendel90 parts - 10 years ago

Shipping to where I live is another 7.50£, the items are all stainless (not available in any other quality) which add to the cost.

by hsbontop - Mendel90

Sourcing Mendel90 parts - 10 years ago

I have sourced almost everything to my mendel90, getting hold of the bolts and nuts has proven to be difficult, a ebay seller offered a set of bolts and nuts (for 12 mm mdf) for 45£. This seems expensive, any ideas?

by hsbontop - Mendel90