So for bend Z-axes we could mount these horizontaly, home to a specific edge and meassure the distance to the edge? As threaded rods are never perfectly straight this could allow making higher quality printers with cheaper materials.by MarcusWolschon - General
Crosspost for the BitsFromBytes RepMan (Y-belts and X-belt)by MarcusWolschon - General
stephen george Wrote: > My part had now > fused to the acrylic. And when I say fused I mean > taking a chisel and hammer and trying to tap the > two apart resulted in the Acrylic failing rather > than the part coming off. So back to the drawing > board for the print bed. > > Anyone solve the hotspot issue yet? Most heated beds I have seen use a metal surface. It would hby MarcusWolschon - General
james glanville Wrote: ------------------------------------------------------- > I think openscad would be a good candidate for an > object format, its incredibly quick to make > objects, and parametric modelling is very > powerful. Thoughts? It´s supposed to be good for mathematical objects but less so for engeneering. What parametric formats can it export and import?by MarcusWolschon - General Mendel Topics
theOtherRob Wrote: ------------------------------------------------------- > On the Hacklab.to Makerbot I have gone with a > acrylic sheet (~1/2 inch i think) on top of an > aluminum heater block powered by kaptop taped > nicrome on the bottom. Have fun with the acrylic bending in all directions and breaking up due to thermal stress. It works but large, raftless prints at 80-120°C beby MarcusWolschon - General
Triffid_Hunter Wrote: ------------------------------------------------------- > however I can't use wiki formatting > which is what I suspect you may be referring to. How did you get this idea? Did you reat my post at all? THE HEADER OF THE REPRAP FORUM SHOULD HAVE A LINK TO THE REPRAP WIKI AND OFFICIAL REPRAP PROJECT BLOGS. ONE LINK. TO THE MAIN-PAGE. THAT HAS NOTHING TO DO WITH THE CONTby MarcusWolschon - Administration, Announcements, Policy
Triffid_Hunter Wrote: ------------------------------------------------------- > never seen a 'read all' link anywhere It took weeks for me to find it too. In the list of threads in a subforum it´s at the bottom. In the list of subforums it´s below the link and in the list of messages of a thread it´s at the top. ...the joys of consistency. > I don't get logged out when I close a tab >by MarcusWolschon - Administration, Announcements, Policy
And have the counterintuitive read-all that are already on the bottom on the top too? And don´t log you out each time you close the tab? And make the "unread messages" work? (I often open subforums that are not marked only to find lots of new entries while logged ib) And actually link from the forum to the wiki+webpage+blog? (currently this is a oneway-route) And make the email-notification work?by MarcusWolschon - Administration, Announcements, Policy
sellingbin Wrote: ------------------------------------------------------- > COLORED ABS IS BACK IN STOCK!!! EITHER RESPOND > HERE OR SEND ME A PRIVATE MESSAGE IS YOU WOULD > LIKE THE PLASTIC. I HAVE INCLUDED SOME PICTURES. > > Pricing is as follows: > 1Lb = $11.00 > 2.5Lb = $10.00 > 5Lb = $9.00 > 10Lb = $8.00 So 10lb is cheaper then 5lb and buying 1lb costs more thenby MarcusWolschon - For Sale
"Ich wusste nicht das der Zoll SO teuer is" Das nennt sich EinfuhrUmsatzSteuer und daß die UmsatzSteuer in Deutschland 19% beträgt sollte ja wohl jeder wissen.by MarcusWolschon - Altes Forum
I suggest to use some other way of attaching the parts to each other then thousands of bolts. Preferably some kind of clip-connection using only the geometry of the parts and no external metal. Certainly not as much external metal as in the image.by MarcusWolschon - General New Machines Topics
I´m currently trying it. It hangs on a medium complexity model in importing the step-file (1.6M and on importing a trivial model (56 faces) nothing imported. So... your milage may vary. I´ll still go on and write my own STP import.by MarcusWolschon - 3D Design tools
sweaving Wrote: ------------------------------------------------------- > gotta admit the align Z feature in net fab is very > easy to use!Good call with this bit of software. > > Steve I´m more for the automatic and manual repair-functions.by MarcusWolschon - Skeinforge
sweaving Wrote: ------------------------------------------------------- > thats a pain in the rear, but thanks for the > advice and the link to the other thread. The > meshlab work around seams todo the job.. > > Steve Try Netfabb to compare them for your taste. It is believed to be much better. (I have nit tried meshlab yet)by MarcusWolschon - Skeinforge
And another tool: A parametric right angle ruler. Trivial but useful.by MarcusWolschon - Let's design something! (I've got an idea ...)
MarcusWolschon Wrote: ------------------------------------------------------- > [*] a "Schneidlade" (please provide the english > term for this) I just got the word: "Miter Box".by MarcusWolschon - Let's design something! (I've got an idea ...)
I just added 3 new common tools. All parametric. a set of metric hex-keys M4-M10 a "Schneidlade" (please provide the english term for this) a parametric light/medium duty hammerby MarcusWolschon - Let's design something! (I've got an idea ...)
I added what I could find to Let´s add and design more!by MarcusWolschon - Let's design something! (I've got an idea ...)
I agree. I moved to a commercial package now.by MarcusWolschon - General Mendel Topics
I´m tryint to collect all such fixes at the moment (Not having much time to do it yet.) Did you correct the AOI-file the STL came from too?by MarcusWolschon - General Mendel Topics
So, does this still have anything to do with the topic "Plastic recycler"?by MarcusWolschon - General
BeagleFury Wrote: ------------------------------------------------------- > Again, if the boolean operation was 'wrong' more > than likely, your model was inside out. THIS IS A KNOWN BUG. I´m not the only one experiencing it and there is no way you can reliably make a union instead of an intersection,... with wrong normals. (And I guess the normals of 2 freshly created cubes are very likby MarcusWolschon - 3D Design tools
BeagleFury Wrote: > You need to make sure you have your normals > correct (It could be that your models were inside > out), and also, make sure you select the objects > in the correct order (if doing difference), before > you can use the boolean operations. It´s not that the boolean operations are buggy and fragile. It´s the point that it was not even doing the correct operation bby MarcusWolschon - 3D Design tools
I gave blender a chance. Multiple times. But when I saw that the stable, release-version in every debian and ubuntu does intersection when asked to do union, union when asked to do subtraction and a very broken subtraction when asked to do intersection I was gone. It does have these nice loop-subdivisions but they stop working the moment your object is no longer convex.by MarcusWolschon - 3D Design tools
spacexula Wrote: ------------------------------------------------------- > I only use open source. Linux, Blender, AOI, etc. > I refuse to use BfB products until they are open > source. The firmware is open source since quite a while. > None the less Makerbot prints quicker, and is > slightly less reliable. Interesting. How many mm/s feed-rate at what layer-height and flow-raby MarcusWolschon - General
rhmorrison Wrote: > As already discussed in a number of threads some > of the RP parts are very difficult (if not > impossible) to do in resin due to the number of > rods that would be required. That is 20 seconds on a drill compared to 7 hours to print 2 frame vertex (to name the most prominent part). > In addition epoxy > resin is supposedly very expensive. It´s cheap compby MarcusWolschon - General
If my sole goal would be to produce Mendel-parts. Then my aproach would be to a) get a printer that is known for it´s reliability like the RepMan. and b) produce molds with it and cast the parts from epoxy resin with no maintenance, little effort and maximum output.by MarcusWolschon - General
spacexula Wrote: ------------------------------------------------------- > Sell the 1st, build a second, from that point > forward it's sell 2 build 1. This is assuming the > average $300 for a printed set. If they go for > $200 I have to sell 3 to build 1. You seem to be getting the electronics, power, TIME, extruders, SPACE, nuts, bolts, threaded rods and replacement parts very cby MarcusWolschon - General
murd Wrote: ------------------------------------------------------- > I don't know anything practical about lasers, > except that I would be worried about trying to do > something with an invisible thing that could hurt > badly! But I've seen reference to the low powered > lasers that're used to burn CDs and DVDs. The invisible ones for CDs are low-power but the visible ones toby MarcusWolschon - General
Triffid_Hunter Wrote: ------------------------------------------------------- > Marcus, the nichrome must go at least slightly > beyond that temperature to heat the barrel up, and > it must go significantly beyond that temperature > to heat the barrel up quickly. Ok, understood that. But then again, the Nicrome is completely sealed in fire-cement or kaptop-tape. So anything could couby MarcusWolschon - General