The ketone based solvent is doing the work of smoothing the plastic. You can use this on its own but it will take longer to evaporate and the surface of the plastic will stay a bit soft for a day or two. The Xylene and toluene is to make the ketone based solvent evaporate quickly. By volume a decent mix for smoothing ABS plastics. 45% Toluene (paint stores, over the counter) 45% Xylene (Unby CdnReprap - General
Works perfectly if you move the part from the bag to a sealed container with smoothing chemical. Never seen foggy parts. I've been working on a smoothing fluid for a little while that's ketone/xylene/toluene mix and it works as good if not better than the stratasys 40K smoothing station. Simply spray on with a preval sprayer let it evaporate, repeat until your happy. Heating solvents is not a gby CdnReprap - General
Let me know, I have reprap's and commercial machinesby CdnReprap - Canada, Toronto RepRap User Group
I bought some clones to check out the quality and I was pretty surprised the clones are much better. Once I'm done my stock of the originals 2560's I'm switching to clones. The clones use the FTDI232 chip and not the atmel 8u for the USB so you avoid some communication problems with a clone. Also a problem I discovered was they are hard to properly import because they show the FCC logo on the pby CdnReprap - Controllers
Instead of heating the chemicals your using try freezing your part in a zip lock bag then quickly remove the part from the zip lock and expose to the "smoothing chemical" What this does is evenly coat the part. Stratasys has used many different chemicals in their smoothing station but the best so far is dupont vertrel........works great but VERY NASTY stuff. I attached a picture of the warningby CdnReprap - General
Just like any bearing out there.....PLA bearings WILL wear out. Many factors will determine how long any bearing will last. Here are just a few to consider. -bearing material -Speed you run the machine -Weight on the bearing -quality of the smooth rod. -type of lube you are using -machine adjustment -aging of the bearing material I see reprap prusa with the PLA bearings as a GOOD stepping stonby CdnReprap - General Mendel Topics
The smallest I used was 0.25mm (0.010"). Inner bore was 1.75mm to match the fillament as close as possible.by CdnReprap - Plastic Extruder Working Group
I make the TEC's myself, I use bismuth telluride as the semiconductor material. If you don't have edm and cnc wire cutting your going to have a tuff time making modules with a tight spec. You can however modify/disassemble cheep TEC's into whatever you need. If you ask nicely you might be able to buy some of the processed bi te material ready to cut from Marlow if they are still making modulesby CdnReprap - General
Let's do it. This should help anyone getting into this hobby understand.by CdnReprap - General
has all the info. The stuff I used is called "silva spray" (sorry for my previous post) it it makes the surface conductive so it will electroplate. Great website, great stuffby CdnReprap - General
caswell.com electroplating Smooth / Fill / sand then use the "silver spray" on the plastic parts then you can electroplate them just like metal parts. Smoother you go before silver spraying the parts gives you a better finish. Attached is a pic of a dimension part I did with "silver spray" and "copy chrome" from Caswell.by CdnReprap - General
You can use any NTC as long as it can operate in the range we are using it (up to 300oC). You will then create a lookup table for your machine's firmware based on the exact spec of your sensor. I use and include the EPCOS G560 for my kits. Great place to buy is right here..... the table is available so you can skip a step. >>>>I'm not affiliated with ULTIMACHINE but I support themby CdnReprap - Reprappers
brnrd:You hit the nail on the head. "Even if you buy a plug-and-play Mendel, you will still eventually end up doing HW work. "by CdnReprap - General
Sold! Thx for lookingby CdnReprap - For Sale
Its engineered for 3D printing using extruder nozzles starting at 0.010"(0.25mm) and down to 0.05" slice....vs ALL the other stuff that isn't. Also makes fantastic looking parts because it has a satin finish These usually sell for 700~800/spool depending on the reseller. Usually special order also so you need to wait.by CdnReprap - For Sale
Deal of the century Sealed 10lbs spools of OEM Stratasys P400 ABS! Sealed 10lbs spools of P400 R support materialby CdnReprap - For Sale
Here's a blue machine.by CdnReprap - For Sale
@nophead: have you ever tried 5ohms? I switched to a 5Ohms so I can run in 280~325oC range, its working really nice with both ABS and PLAby CdnReprap - General
@CidVilas: If we used the TEC in that manner we would be making electricity with it!by CdnReprap - General
I forgot to mention I'm making an extruder plate using a TEC to cool the PTFE.by CdnReprap - General
Leaded solder is still legal in the EU, for medical devices, aircraft industry, high power industrial products and any life critical devices...ect. PCB's shouldn't get checked because its not a finished product.by CdnReprap - Controllers
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I've been using them for heated beds for almost a year and they work great on a 1/4" aluminum table, without a heatsink and without control. I posted it somewhere in the forum just haven't had the time to post some pics. I'm using 1x 40mm x 40mm module. The size that I'm using is model 12708. Steady state it draws about 5.4A and the table temp gets to about ~90oC. I like it because, there is nby CdnReprap - General
I have kits without electronics at the moment.by CdnReprap - General
The old version used M4 rods, and the reason the newer version uses M3 is to reduce the amount of heat migrating to the base of the extruder.by CdnReprap - General
We are waiting for more endstops to arrive to release the next batch. I'll post here when its available.by CdnReprap - For Sale
brupje: If you connect those 2.2Ohm resistors(4x) in series you should have 8.8~9Ohms, if you run that off ~18V (pretty common laptop PSU) you should be at/about the right temp for PLA.by CdnReprap - Reprappers
I like them both. At the moment I include Adrian's extruder because I have been testing/using/abusing it it since April last year without failure. Wades extruder is a bit simpler to make, I'm testing my modified version of wade's extruder now. I like to test each design before selling them this way I know how to help my customers. If you prefer Wade's extruder in your kit let me know I can swiby CdnReprap - General