I wanted to talk a little more about USB Host Mode and one major difference in PRINT3R for Android. PRINT3R for Android was designed first for USB accessory mode. This is one aspect of making the software easier to use and more productive for users. Host mode and bluetooth support have been added in later. In USB Host Mode the Android device won't have enough battery power for sustained usageby tenacious - General
Oops I did not sign the posting above! My apologies, please allow me to add a signature as the forums prevents me from editing the post this late. Free Beachler Founder, Terawatt Industries Creator, PRINT3R for Android If this should have been posted to "For Sale!" I apologize - it would have been fine to move it there. It is not a sale. It is a promotion but we're not collecting money fromby tenacious - General
I'm not sure if your PLA is causing problems - sounds like it might be. One way to learn more is to get something without dyes (natural) from the same vendor - or at least a different color - or better yet try another vendor. You might end up chasing ghosts otherwise. It also sounds like you might be experiencing compound problems, which isn't uncommon. Getting the right amount of kapton tapeby tenacious - General
Wish I'd seen this when it was posted but we rarely have enough time for RepRap forums or IRC yet. For those that don't know I created the PrismX so you can accuse me of bias at your leisure. Of the list MendelMax 1.5, MendelMax 1.6 (MMax 2.x for that matter), PrismX or OB1...the Prism variants are better. Why? * PrismX and OB1 assembly from a kit is faster and easier than a MMax 1.x. I don'tby tenacious - General
PRINT3R for Android is a standalone print server created for the Android OS. It provides a GCode file manager, 3D and 2D GCode viewers, touch-screen 3D printer control, realtime monitoring, and much more. To use PRINT3R first connect a 3D printer to an Android device using a USB cable or Bluetooth. Then upload GCODE files to your printer using a web browser, email, bluetooth, dropbox, and moreby tenacious - General
Sure! It might be difficult to migrate the Prusa i3 without swapping significant hardware, but it'd be cool to analyze what you'd need. Forkers are very welcome. R. Feynman once said, "What I cannot build, I cannot understand.". Therefore, get started building!by tenacious - Extruded Aluminum Frames
Right now we fulfill this printer as a complete pre-assembled machine. Isn't that more userfriendly than a kit? There is a complete visual model of the machine found in "terawatt-prismx.scad". In lieu of an assembly guide, this file is a complete model of the machine. Extrusion length is 400mm, just like the original prism. By the way, the PrismX works with any reasonable length of extrusionby tenacious - Extruded Aluminum Frames
I'm biased. I'd like to see others start to build the machine but until assembly instructions are available I suppose such would take a core reprapper. First please let me speak to development stability. The code is very stable. I've committed revisions recently for an upper leadscrew guidler and z-endstop. The filament spool holder is likely to be revised also, actually it's in a separate rby tenacious - Extruded Aluminum Frames
Alright - the SCADs and STLs are uploaded to our Github and Bitbucket repos. This link is the top-level repository which contains all the software Terawatt officially supports for the Prismx: https://github.com/Terawatt-Industries/prismx The scads are in the hardware/prismx folder. STLs are in dist/stl. Peoples will need a printed-parts BOM and a vitamins BOM. We're going to create a printedby tenacious - Extruded Aluminum Frames
You got it! SCADs are finally cleaned up and ready for the MendelMax upgrade kit. I'm making further preparations today to get the code pushed to github.by tenacious - Extruded Aluminum Frames
Terawatt released our Universal Y-Axis plate source-distros in SVG format. You can use these files to assist with making a Y-Axis plate for a reprap with many different materials and processes, including CNC machining and lasercutting. Probably the easiest way to make your own y-plate is to print the SVG file and use it as a drill guide with a 9"x9" sheet of 3mm-thick aluminum or 5mm-thick acryby tenacious - General
ATX power supplies are better than those cheapo PSUs on eBay/Amazon because they're warrantied, made to higher standards to achieve certification, and work well. Short circuit protection makes a huge difference - if you're away from your reprap and something goes wrong with moving wires would you rather have a PSU that's designed to shutdown or one that keeps on running? Not to mention a certifby tenacious - General
I've been thinking about the pulleys as molds are being finalized. Doesn't a pulley which has a diameter that's a multiple of 1/2 the belt-pitch get the same effect? In other words, for a GT2 belt, a pulley diameter of - just making this up - 49mm cancels the effect you describe. Then, for a GT3 belt w/3mm pitch, the diameter would be a multiple of 1.5mm - so a 45mm-diameter pulley cancels thaby tenacious - Extruded Aluminum Frames
You're right and I had grown to accept that misalignment on the belt tensioners - it's slight but noticeable. I like your suggestions. We're going to re-launch the machine on our site and I'll start testing these revisions for production.by tenacious - Extruded Aluminum Frames
Hey man I'm so glad you chimed in on this thread. You've been on my mind often although I don't know you. I think we share a common interest in Astronomy, for what it's worth. Thank you so very much for establishing a solid foundation to iterate upon, and most of all for sharing your work and thus providing an opportunity for us to take part in its evolution. All bases are belong to the Prismby tenacious - Extruded Aluminum Frames
It has been iterated already. I'd rather iterate on the Prism Mendel anyday...by tenacious - General
What are the temp ratings on the HDU foam? Will it melt if a heated nozzle crashes into it?by tenacious - General
Great contest idea! The US is the proper place for this contest, in my opinion.by tenacious - General
Water cooling sounds interesting to me. How do you manage the inlet/outlet water lines on a moving carriage? Do they ever kink or become dislodged? Is it possible for the water lines to come loose during a print?by tenacious - General
The press-fit bearing holders with steel retainer rings on the PrismX are worth checking out. They're really nice and they can be modd'ed to fit almost anything. Right now it's rolling with a j-head as standard issue, but I was referring to firmware settings for the extruder motion (which can constrain motion on other axes) - irrespective of the hotend type. The stepper drivers are A4988 Pololby tenacious - Extruded Aluminum Frames
Agreed, the 00str00der is a major highlight. I'm not sure which is better: being able to calibrate the extruder by measuring the hobbed bolt, or having a gear/belt drive system with expected lifetime on the order of 1000s of kilometers. I think it's awesome you're able to use high speed values on your machine! We use acceleration around to 2200 - 2500 on this machine currently. In my opinionby tenacious - Extruded Aluminum Frames
Frankly, I think the video is cool and I'm looking forward to more.by tenacious - General
I've been experimenting with a 1% thermistor from US Sensor, manuf. part# GP104L8F. This is a 1% 100K thermistor rated up to 300C that I've been experimenting with on our PrismX with the J-Head MKV-B. The GP104L8F is pricey but I've had my eye on it and my Pronterface temperature graph's fluctuations for a while, so decided to give it a shot on our new machine. It's only been used for ~200 priby tenacious - General
This sounds cool. However I must warn you - watch out for the PrismX mini or micro - haven't reckoned the name yet...I'm usually good at names...by tenacious - General
The PrismX features exceptional frame alignment, performance, and quality components. Launched in May, 2013, it is the evolution of the original Prism Mendel. Visit the PrismX official website for photos, videos, updates, and blog postings: http://prismx.terawattindustries.com The PrismX source code is to be published (upon its first sale, or earlier) at: http://terawatt-industries.github.ioby tenacious - General Mendel Topics
When is Marlin going to merge the bugfix @iquizzle and I worked on?by tenacious - General
The PrismX Open Source 3D Printer has arrived. The PrismX is based on a variant of the original Prism Mendel that I call Prism AliceBlue. PrismAB includes Terawatt customizations such as our leadscrews and very heavily modified Kuehling's x-ends. AliceBlue exposed the potential for remarkable performance in the Prism Mendel design on its 4th print. I can't say overstate its reliability. It rby tenacious - Extruded Aluminum Frames
You are brave! The Prism reprap has proven for me, in-the-field, that a belt-driven z-axis is better than one motor for each leadscrew. When designed and built properly it functions better, and breaks better - compared to the two-motor approach. By 'breaks better' what I mean is: if the belt isn't tensioned or something is wrong with the drive system, both leadscrews don't move, or they stuttby tenacious - Polar Machines, SCARA, Robot Arms
Terawatt Industries recently opened for business in Boulder, Colorado. We sell 3D Printers kits, print materials including PLA and ABS, parts, and accessories. We have MendelMax printers in stock right now but we're working on much more. Walk-in business is welcome during business hours. Check out our website at and feel free to contact us.by tenacious - Colorado, Denver RepRap User Group