Quotethe_digital_dentist I've put UV LEDs inside fluorescent plastic parts before and it was very disappointing. The UV makes the surface it hits glow, but it doesn't penetrate the plastic, so the effect is very weak. I print using fluorescent filament at Maker Faires and have about 20W of UV LEDs installed in my printer. I like to use FoxSmart Screamin' Green TPU but that pink stuff looks reaby klcjr89 - General
Quotethe_digital_dentist That does look nice! Who makes the filament? Thanks! 3DXTech is the manufacturer (all USA based, thankfully.) I was thinking about modeling a channel into the extrusion so I could put high intensity UV leds hidden inside the extrusion, but am not sure how well the light would be diffused. Would also be interesting to see if resin would help diffuse the light. I would pby klcjr89 - General
Quotethe_digital_dentist Have you calculated the cost of this "extrusion" compared to aluminum? On the basis of the 60x60 extrusion I planned to purchase from Misumi, it costs less for me to print the extrusions and that is with high-quality pricier filament than the bargain bin no name filaments. For smaller extrusion sizes, it may or may not be worthwhile; I did not calculate the price differeby klcjr89 - General
I have removed the foam filling from the description, as I found the foam doesn't cure in the relatively air-tight cavity, as the foam cures in the presence of moisture. Since the foam blocks the filling hole, very little moisture can enter the cavity. I discovered this by cracking open one face of the extrusion on purpose and viewing that there was almost no foam at all in the inside; all of itby klcjr89 - General
I made up a quick mockup of the stack and I think the method should work well. These are the 30x30s and I didn't feel with this size that it was necessary to fill with foam or resin.by klcjr89 - General
Quotethe_digital_dentist The foam doesn't expand so much that it breaks the plastic? This was my thought too, and with one perimeter it definitely could. I recommend four perimeters.by klcjr89 - General
Quotethe_digital_dentist Are you going to print them and try injecting them with foam? Yes, I already have yesterday as a curiosity. QuoteOrigamib Why not just print 100mm high extrusions? I have successfully done this before using the CAD files supplied by openbuilds. I used them to make a 3D scanner I designed before buying the correct lengths of extrusion. EDIT: a better idea would be to rby klcjr89 - General
I have published a design on thingiverse that are stackable extrusions that you can print out at 0% infill, and fill the cavity with resin. It's a work in progress, but it's nearly finished after going through a few revisions. The thingiverse has a detailed description. Thank you for reading and taking a lookby klcjr89 - General
Looks like two seperate motors in one housing with coaxial shafts, two sets of four wires.by klcjr89 - General
QuoteRC-CnC Checked it out on amazon.ca They won't ship to the US UGH!!! What about the link I provided?by klcjr89 - General
QuoteVDX ... but you have to fix the rail along the complete length, or it will bend or oscillate/clang with moved loads Toe clamps were mentioned, Quoteklcjr89 Some kind of toe clamp that clamps into a small groove along the length of the rail maybe?by klcjr89 - Stepper Motors, Servo Motors, DC Motors
QuoteVDX ... then either a row of screws into the rail (common use), or "clamping" inside the (split) extrusion with a row of screws through the extrusion ... I mentioned on the previous page that both options would not be acceptable. Quoteklcjr89 No holes in the middle of the rail, one hole on each end could be permissible, but that leaves the center floating (not what I want at all). No holeby klcjr89 - Stepper Motors, Servo Motors, DC Motors
I would prefer not to glue anything, and I think other customers wouldn't either for disassembling and upgrading of machine.by klcjr89 - Stepper Motors, Servo Motors, DC Motors
If I'm going to be creating a new linear rail from scratch, what are some alternative mounting options I could pursue? Assuming: No holes in the middle of the rail, one hole on each end could be permissible, but that leaves the center floating (not what I want at all). No holes from the bottom of rail tapped, because this wouldn't really be adoptable on 3D printers if you have to drill a bunchby klcjr89 - Stepper Motors, Servo Motors, DC Motors
Quotefrankvdh Quoteo_lampe I made a new adapter which holds the hotend below the alu-effector. Now the Bowden tube has no lever to twist the effector off the rods. Wonder whether a flying extruder would be good with this? A Zesty Nimble would be perfect for this.by klcjr89 - Delta Machines
QuoteRC-CnC There are alot of brands of PETG out there. Are there any that aren't so glossy. Im not really digging the shiny appearance. This is what I've used: 3dxpro Low Gloss PETGby klcjr89 - General
Quoteo_lampe Press fit plugs might not survive the cutting procedure, so why not cut a thread in the mounting hole and screw the plugs in? Threading would be difficult since the rails come hardened.by klcjr89 - Stepper Motors, Servo Motors, DC Motors
I actually have my doubts that modifying a linear rail will provide enough magnetic saturation, due to the mounting holes cutting the flux dramatically.by klcjr89 - Stepper Motors, Servo Motors, DC Motors
QuoteQuenta Quoteklcjr89 What I'm saying is that I would've been your first customer, if you supported PayPal on your site. Issue resolved for 0.4mm. @klcjr89 Thanks anyways for pointing out the shortcoming in the payment system, I didn't realize it's so crappy from a customer view. I'll soon be back with paypal & some stocks. Please post here as soon as stock is available. I hope I don'tby klcjr89 - General
I am going to order a 1018 carbon steel linear rail from Misumi and have it wire EDM'd to prove or disprove the ability to modify a linear rail to use as a platen. If it works, the next step will be to print a forcer housing out of igus filament to negate the need for recirculating ball bearings.by klcjr89 - Stepper Motors, Servo Motors, DC Motors
QuoteQuenta I have no intention of promoting the nozzle here. This thing is yet experimental. By the way I haven't sold any yet. What I'm saying is that I would've been your first customer, if you supported PayPal on your site.by klcjr89 - General
QuoteQuenta 1. I wish not to write this because it is key in manufacturing 2. You are right about your concerns. To keep it all metal there is no seal. A certain level of precision in the machining of the pin / barrel is necessary to block molten plastic to enter the air chamber. 3. Your intuitions are somewhat right, but given the acorn-nut shape nozzle with a thin orifice, the plastic is ratherby klcjr89 - General
QuoteBill Clark Quoteklcjr89 From my experience, an i3 style leadscrew printer I used provided very good results. The machine utilized 8mm diameter four start (8mm lead) leadscrews accompanied with the OpenBuilds anti-backlash (adjustable) Delrin nuts. The leadscrews were on all of the axes. The print quality was very good, no ghosting since there were no belts. A Smoothieboard provided the higby klcjr89 - General
Quotebriangilbert @Srek could you please link to what you mean by magnetic foil? Only good up to 120ÂșC, so that leaves out printing PEEK, etcby klcjr89 - General
From my experience, an i3 style leadscrew printer I used provided very good results. The machine utilized 8mm diameter four start (8mm lead) leadscrews accompanied with the OpenBuilds anti-backlash (adjustable) Delrin nuts. The leadscrews were on all of the axes. The print quality was very good, no ghosting since there were no belts. A Smoothieboard provided the high step rates necessary for alby klcjr89 - General
The CR-10 original has one lead screw.by klcjr89 - General
The silicon steel has arrived from China. Next up will be to source the permanent magnet and then create a 2D outline to send off to get all the laminations laser cut.by klcjr89 - Stepper Motors, Servo Motors, DC Motors
What about something like these? High wattage for PEEK printing chamber temps. Relatively inexpensive too.by klcjr89 - General
QuoteTrakyan I recall lkcl planning to build a printer similar in concept. He wanted to use belts, thought but the placement of the driving force was the same (the belts/screws apply force very close to the X intersection). He ended up having an issue with binding when the XY assembly was further off center, it would cause a moment on the perimeter bearings since you're pulling/pushing close to oby klcjr89 - Extruded Aluminum Frames
I think a servo isn't needed for the maxwell kinematic coupling they're using. I read the entirety of the article, and still think the kinematic coupling with SmCo magnets would've been ideal.by klcjr89 - General