Have you considered another bearing the other side of the belt pulley? There's goingtobe a fair measure of twist on that stub axle from the belt tension.by WesBrooks - General
I'm not clued up on the PanelDue revisions but I've used both the seperate board processor/and the integral. Both of these have been equally capable. As far as I'm aware none of the minor changes on the on the duet 2 have been show stoppers. Addition of fuses for example has been a wise step that merely reduces the need to use off board fuses and protects users who are less thorough with their wby WesBrooks - General
QuotePDBeal I did print a few additions ... TL Smoothers to the drivers. It’s a lot quieter machine than my other ones that runs a Duet 0.8.5. Tried the TL smoothers on the Duet 0.8.5. Effect was negligable on sound level. Perhaps the E3D hotend fan was just too noisey in comparison to the quietening! No effect on part quality for me. v0.6 and 0.8.5 are essentially the same board save the addiby WesBrooks - General
I'll be looking over the v0.6 duet schematics to see what their default setting is!by WesBrooks - General
Stand down! ;-) I've pieced together the CAD from the GITHUB in FreeCAD and so can start to take measurements directly from the CAD. The angle on the laser arms seem about 30 degrees from the horizontal. Other values should be fairly easy to get. I've spotted (but not tried - no scanner yet) a version of Horus on github that has been ported to python3. While you may not be interested in tweakinby WesBrooks - General
I've taken delivery of a bondtech clone which I'll use until finances allow me to go genuine. I'll be designing a mount that works with direct or bowden E3D V6.by WesBrooks - Hello. I need a something designed. For money.
If you seach for 'cowtech scanner' you will find a company in the states that did a kickstarter for a scanner based on the Ciclop, but they have a good selection of support documents that would be worth reading through. If you could give me some rough measurements that would be awesome. Centre of the camera mount to the furthest part of the threaded bars that support the lasers. From the endpoiby WesBrooks - General
Edit: This is not intended as confrontational. If it reads like that it was not intended, I'm just trying to soak up plenty of information before investing in decent worm gear sets and suitable bearigs to eliminate the effect if the worm shuffling back and forth. Thanks for the previous responce, and reading through this. QuoteMKSA Lead screw also have backlash. I was mainly asking for figuresby WesBrooks - General
Any measurements on the level of backlash on a standard direct drive GT2 belt, belt reduction, and worm reduction? I had been thinking about belt reduction on the x/y for small nozzle stuff. Worm would be neater, but I'm concerned aboit backlash.by WesBrooks - General
Just for clarity I'm hailing from the UK. Two pole switch breaks both live (large ac voltage between live and protective earth) and neutral (negligable difference between neutral and earth fatality from contact highly improbable). Single pole breaks just live. Fuse is normally on the live side before the switch. So, problem with a single pole switch is the mains powered items on the device sby WesBrooks - General
Thinking about the single pole switch a little more that is seriously dodgy in europe where you can get the plug the wrong way around. Leaves bits after the switch live, and you could get a belt from 'neutral' to earth.by WesBrooks - General
I'm not sure I follow your response. The documentation behind CE marking is the manufacturer's responsibility, or in the case of items made outside the EU area the importers responsibility. It indicates the machine has been built to agreed standards, although many manufacturers push the printers through as home IT equiment rather than machines, giving themselves an easier ride. I was reading upby WesBrooks - General
As a complete kit on the EU market shouldn't this product be CE marked?by WesBrooks - General
Their website advertised next day delivery messages when I ordered. I realised this was unlikely to apply to orders sent overseas but it should have been dispatched sooner. No complete build manual for the entry level offering. No wiring guide for the RAMPs board. Electricsl enclosure didn't fit RAMPs board. Printed parts were weak, and didn't appear to be the infill levels advertised. Screenby WesBrooks - General
Have you got this sorted yet? I am in the process of making a mount for my P3Steel and a mod for a bondtech extruder wouldn't take much.by WesBrooks - Hello. I need a something designed. For money.
As the title says I'm interested to hear any feedback from people who have used these scanners.by WesBrooks - General
Long story short the machine was exhibiting a ripple in the surfaces parallel to the table motion but much better in the hotend motion. I discussed the issue at length in the Duet forums incase it was an issue with bed level compensation or a limitation of the v0.8.5 board that is running on the machine. Changed alsorts including belts, better quality pulleys, and bigger motors. Things did improvby WesBrooks - Ormerod
Ha ha! Cheers. Just going through another itteration to get rid of some wobble. Cheeseandham will be pleased to see some metal brackets coming in! I'll add a couple more photos later. Edit: I can confirm cheap GT2 pulleys are off centre and naff!by WesBrooks - Ormerod
The Chinese don't need to. The person responsible in these cases is the importer. Buy from Aliexpress and that is yourself so it is buy at your own risk. When you sell a complete kit within the UK and EU market it needs the CE documentation. I'm not discussing it here in order to find loop holes, I'm gathering information on the bare minimum to do it properly. It also effectively prevents youby WesBrooks - General
I think if you supply a complete kit then you are on dubious ground not having a CE certificate. The thing I find most frustrating is the framework is there to allow us to make and trade safe goods (or at least to demonstrate we have paid due diligence) but each one of these standards is hundreds of pounds. They're (or the knowledge they contain is) needed before you take the product to market. Iby WesBrooks - General
The actual peak or average acceleration during the transition from stop to instant steady speed is likely to be constant. I would be tempted to run custom gcode with increasing instantaneous speed until it causes a skipped step. Ok the values will be way beyond what you would use in a build but you would then have the jerk speed that can't be achieved in two physical steps and so you can calculatby WesBrooks - General
Two full steps is the maximum. You have heard of this when people complain about shifted layers or stalling steppers that limit has been exceeded. Most commonly with the extruder, where the lurch backwards from the intended motion releases the back pressure in the filament causing a much larger move before the drive catches the motion again. Equally look at all the physical artefacts on parts sucby WesBrooks - General
The two physical step thing is the maximum lag of any action before the stepper will 'loose a step' doesn't matter if this is a start to a specific speed, acceleration, or maintaining a set speed. A high torque setup will reduce this lag under the same conditions. I've not ment to say the resolution of the system is not increased by microstepping, merely that the accuracy of movements is stronglby WesBrooks - General
The maximum period of time the jerk has to take place in is 2 physical steps, not microsteps. All microstepping does is miimic discrete steps between the major step cycle of the stepper. It doesn't add points the rotor will snap to if over torqued, that's only changed by swapping a 1.8 stepper for a 0.9 or 0.45 stepper. Most spec sheets have pull in torque details and rotor inerria so you can usby WesBrooks - General
To move from zero to instantaneous speed (reprap jerk) would be: Controller sends a sequence of pulses to the stepper driver a fixed time period apart asking the stepper to travel at a fixed rate. Stepper driver iterates though the step pattern to move the rotor with no compensations for inertia. Stepper rotor accelerates and reaches target velocity before the rotor position lags two physicalby WesBrooks - General
First iteration was building on a level surface and mounting the rod supports directly to that. Edit: The extrusions all touch the bench when the machine is placed down. There is still a slight twist so I am currently planning to add a third bolt at the front edge of both sides to add a rotation of the side pieces by bolting down onto the extrusion. This is the next issue to tackle after I've gby WesBrooks - Ormerod
Cheers. I give very little consideration to the aesthetics of colour to be honest! I had used black but got nervous about heat absorption near the hot end (both during print and in use on the machine) so I went full opposite to white, but I am now wondering if this is exacerbating part cooling issues as white cools slowest. After being recently asked about environmental issues, and as I have stiby WesBrooks - Ormerod
Currently swapping belts and re-designing z-base to reduce a ringing like wobble. So far no z-wobble! :-) I will compile a bill of materials soon but so far the major extras (over Ormerod 2) are: 3 x 20x20 vslot extrusion. 1 x 20x40 vslot extrusion. 3 x vslot wheels with nuts, bolts, spacers, and excentric spacers. GT2 belt. 3 x 20t drive pulleys (may revise to smaller tooth count later) 3 x 2by WesBrooks - Ormerod
Bodgeish: Almost standard shape bearing caps. belt clamp is not great. Will rework this when I have no major issues to solve. Y axis rod supports mounted direct on-top of 20x20 extrusion. M3 bolts screw axially onto the rods so that the belt tension doesn't pull the ends in, and allows larger error in cutting the length of rods. The other side is simply a mirror. Microswitch mounted in a similby WesBrooks - Ormerod
Bodgeish: Standard extruder with helical gears mounted on a static extrusion. X carriage running on large vslot wheels. Since found some smaller ones but not worth rebuilding just for a few mm of extra travel until I have evaluated the whole machine better. There are other tweaks I would like to do too since finding the smaller wheels in my stash! Not sure who had the idea for this originalby WesBrooks - Ormerod