Show all posts by user
Page 1 of 2
Pages: 12
Results 1 — 30 of 40
Here are my latest workings - I haven't tried running it yet
//If this actually works it will need to be modified to enable one odometer per filament input (for the same reason up to 5 runout sensors can be installed)
// I haven't yet, as it should be a simple matter of converting each variable to an array.
// Also I'm not sure how each pin will end up being configured
/**
* Filament Odomet
by
dgm3333
-
Firmware - Marlin
Obviously sugar isn't plastic, but this technique seemed most relevant for this section
Just found this article using isomalt to develop structures:
Isomalt:
Costs approx £10/kg
Melts at around 150degC
Cools rapidly enough it can be printed in midair.
Dissolves rapidly in water
(would probably be recyclable if you break off and reform the syrup, although I suspect would yellow with repeated us
by
dgm3333
-
Plastic Extruder Working Group
Still hoping someone with some knowledge of the code might help here...
Never having looked at Marlin internals before I don't really have any clue what I'm doing, so more likely to break something than not (and given the time cost of each build/test cycle and the relative lack of interest in this this post it probably isn't worth pursuing, but these seem like potential points for code to enabl
by
dgm3333
-
Firmware - Marlin
I'm trying to figure out how to add a filament travel monitor to (hopefully) provide early warning of filament slippages.
I use Ramps and have 3 free endstop slots so I want to repurpose one to work as an encoder to count toggles (change from open to closed) to provide the filament travel detector.
Background follows, but any help for the following would be appreciated:
Steps:
1. repurpose the e
by
dgm3333
-
Firmware - Marlin
@dintid: Not sure why you're necro posting with irrelevant abuse on a post a year out of date.
However I still stand by my statement that the original post by prashantdshinde which hijacked the thread appeared to be totally lazy as he/she appeared to have not bothered to do even basic google research which would have answered his question far more quickly than posting on the forum.
I also stand
by
dgm3333
-
Developers
A question on the geeetech extruder. I broke the threaded tube which runs from the extruder gear to the hotend - I tightened the lock nut with a wrench and the thread cracked.
I've made a new one (its just a 30mm length of stainless m6 threaded rod drilled out 4mm to a depth of 27mm with a 2mm hole through the remainder and a PTFE insert - easy to remake in a drill press by clamping the thread i
by
dgm3333
-
Prusa i3 and variants
"carbon fibre" only describes the reinforcing material, not the resin (which is ultimately the bed adhesion surface), but for weight reasons it could be something like PEI (polyetherimide) sheet (this may also be what BuildTak is) with carbon fibre core (or the standard dyed black Ultem glass fibre sheet). It would certainly make sense that for weight it was reinforced with CF. Thanks for the gue
by
dgm3333
-
General
I know the ISS printer prints ABS, but my biggest question is does anyone know what the bed is made of?
I'm curious how they manage their adhesion and release. The photos seem to be black for what thats worth.
Also incidentally none of the articles about the involvement of the astronauts mention using a dremel or other tool to remove raft/crud/etc (they do mention maintenance and reloading of ca
by
dgm3333
-
General
@prashantdshinde: Just my 2 bits:
The past 9 posts relate to a seven switch. A one second google search brought up the wiki page which shows not only the wiring diagram, but seems to cover in their entirety the first 8 posts.
Thus you could have just reviewed that.
Your question about pins in post 9 implies that you are expecting someone else to have done what you want to achieve, but the wiki s
by
dgm3333
-
Developers
Thanks, I'll get a DC SSR for simplicity (the time to construct a MOSFET circuit would cost me more than the few pound difference in cost of parts)
(if you can wait for it to arrive from China around £4.50 - ebay SSR)
I'm expecting this will decrease risk of faults by having much lower amperage through the Sangino circuitry (which with heated bed is drawing around 4x it's rated amperage at the m
by
dgm3333
-
Developers
I've just had to replace my PSU after it died. In the past I've had melted PSU cables, melted connectors, fried sanguinolulu mosfet and various PSU switchoffs, which I'm presuming are due to excessive current drawn by the heated bed running through the sanguinolulu (and/or poor quality PSU).
I would therefore like to rewire my MK2 heated bed with a relay. I have the following circuit in mind, but
by
dgm3333
-
Developers
Just trying the new Repetier Host.
Two apparent bugs and a suggestion on the config for curaEngine
1. The gcode defaults editor (fourth tab, right hand side) randomly doesn't refresh properly.
It especially faults if using ctrl-Z to undo a change or ctrl-C to paste, and after doesn't refresh correctly to display the 'actual' text (this can be forced by clicking on another tab, or another text fi
by
dgm3333
-
Repetier
What sort of beer?
Re: acetone - I like this idea best providing you've got it somewhere safe...
by
dgm3333
-
Reprappers
Re Mesh editing - Netfab works well and has an auto-repair. you can either upload online (with no control) or install the free version 'Basic' on Win/Lin/Mac if you want a bit more. Meshlab is very powerful, but not well documented, and still somewhat buggy. I've written a little rant about how to install it on ubuntu here: install guide. David
by
dgm3333
-
Reprappers
Hey Noobman: Got me thinking as I've tried my new setup for some time and the larger gear works much better than my old smaller gear. It's certainly no longer chewing holes in the filament. Given the results, I'm also not sure if I agree with your logic that larger diameter makes no difference with extrusion. However I'm not a tribologist, so happy to be corrected. My thoughts:
Essentially I disa
by
dgm3333
-
Developers
I dissolved the sugar in hot water. However I have currently switched back to kapton tape as I found adhesion was more consistent with my current filament (a cheap ebay one) than either sugar water or ABS juice. Also important (and not generally mentioned) is that ABS varies dramatically from different suppliers, so if you're getting very poor adhesion may be worth trying another supplier (not al
by
dgm3333
-
Reprappers
There are various pellet/granule extruders. I think most of them have a rotating internal screw rather than rotating the chamber wall. Many use the same pellets as are used to make filament, but some use recycled filament. You'll find a number of them with a quick google search (one example using an auger drill bit is Filament Extruder)
If you're thinking of driving filament with the thread, you
by
dgm3333
-
Developers
I have another post with some other macro pics of the hyena-mini v2 out of the enveolope. The web site says "The v2 outperforms v1 by 220%" (v1 had a 'classic' tooth profile).
New Hyena-mini advice or review wanted
I too was a bit disappointed initially. Having said that, it does seem to function well - at least on the first few metres of filament until the force buckled my old hacked extruder bo
by
dgm3333
-
Developers
Yeah I was using the pin to remove them, after having got most out with compressed air. Actually it's one of the irritating things about the hyena-mini, it seems to clog up very easily.
by
dgm3333
-
Developers
Thanks nophead, that did the trick, I don't think I'd ever looked at that tab.
David
by
dgm3333
-
Skeinforge
Repetier v0.84C remembered if slic3r or skeinforge was the active slicer on exit and reselect it on restart. It now always selects slic3r which is irritating for those of us using skeinforge.
Also could it also have the same ability to use saved profiles with skeinforge as it does with slic3r. It does show the four created with skeinforge installation (ABS,HDPE,PCL,PLA), but if you use skeinforg
by
dgm3333
-
Repetier
I often switch my printer off with the head at y=max (200mm) as this make my bed easily accessible.
However if I forget this when I turn back on, and try and do a +ve step the bed crashes into the end.
Would it be possible to have a warning appear until after each axis had been homed.
My suggestion is warning color for the home buttons and a written warning over the appropriate axis
(NB z-axis ha
by
dgm3333
-
Repetier
I've realised my worry about the location of the guide hole is probably unnecessary. I tried printing a couple of metres of ABS with my old extruder which has the guide hole located for an (approx) 7.5mm shaft using the pictured 10.5mm drive gear, and it actually does a pretty good job. I get occasional slipping and shredding, but lot less than I might have expected, and never enough to stop the
by
dgm3333
-
Developers
Is there any way to have automatically disable suspend/shutdown in Ubuntu after a period of inactivity
On my system this would ideally be done when repetier-host connects/disconnects to the printer. Otherwise repetier freezes on wake-up. I think this is due to a fault with mono, as you have to terminate mono from the system monitor to get out.
An alternative would be automatically disabling it on
by
dgm3333
-
Repetier
My irritation is that when Skeinforge slices an STL it sets the initial travel speed moving from home to the start of the skirt to F60.0
This is dramatically slower than the rest of the print - layer 1 is F1200, and subsequent layers are F3000.
I can't find a setting to fix this and have to edit the gcode manually each time.
Does anyone know where I can fix this?
It's set after gcode.start, so al
by
dgm3333
-
Skeinforge
Reposted on Developer Forum
by
dgm3333
-
Reprappers
My question is, when people get optimal output, how deeply to the teeth of the drive gears bite=cut into the filament to get maximum extrusion force without slipping or breaking? I'm wondering if there is an optimal 'bite depth'. I'm using 3mm ABS filament, but also plan to try nylon at some stage, so any info for this too.
I'm about to print a new extruder body to make use of a hyena-mini.
I've
by
dgm3333
-
Developers
Solved this problem, it's an incompatibility with the Reset on Connect setting. If I disable it, Repetier connects properly...
by
dgm3333
-
Repetier
v0.90c on ubuntu is unable to connect to my printer (sanguinolulu). It just says 7 commands waiting.
I ran configureFirst.sh without testing if it worked before this.
v0.85c is still able to on the same system (obviously with 90c disconnected).
Cheers David
by
dgm3333
-
Repetier
A small error: the linux v0.90c version.txt file states the version is0.84.
by
dgm3333
-
Repetier
Page 1 of 2
Pages: 12