Love the 3 screw set up, perfect for auto bed leveling. Amazing to find 1605's that are bent, guess they are factory rejects being sold as "good".by prot0typ1cal - CoreXY Machines
QuoteDjDemonD ... I'd add an oscilloscope to the list... One would need to know how to use it, and why. Me, not a clue :/by prot0typ1cal - General
I recommend a wire stripper and crimper for small stuff: Greenlee 1917-SS Stainless Wire Stripper and Cutter 16-26AWG - 6inch. Perfect for all those little wires. Typically around $17 Engineer PA-09 Micro Connector Pliers Crimpers. Don't even try to make your own connectors without these. Heavy investment at close to $50 You'll soon be glad you bought this Japanese tool after even hooking up onby prot0typ1cal - General
You could always buy a rattle can of high-temp paint for BBQs and Exhaust pipes and coat the inside if the PVC elbow, or line it with aluminum foil. A swept 90 degree elbow will also help (or 2x 45s), that sharp 90 will cause back pressure from buffeting, though not alot, it will heat up pretty fast I'd imagine. One draw back is the swept 90 will put the hair dryer further from the chamber, unleby prot0typ1cal - CoreXY Machines
Love the dB25 Cable management is always last on most lists. Amazing how the Amp draw adds up after adding up all the accessories...by prot0typ1cal - CoreXY Machines
Increasing the static load typically simulates peak dynamic stress/displacement if you use the simple equation: Force = Mass x Acceleration Static FEA is cool, but like CFD, it only gets you close to a good starting point for actually making something that will work with some tuning.by prot0typ1cal - CoreXY Machines
Folgertech FT-5 uses linear rail on 2020, and they have a lot of experience.by prot0typ1cal - CoreXY Machines
What o_lampe said. Made complete pump housings and impellers from 3d printed ABS when I was a designer for a Spa company. Juiced them with acetone, more like painted acetone on with a brush, then painted with enamel. High temp Rustoleum from a rattle can worked great. Parts looked like they were molded, and stood up under real world pressures and temps. Trick is to have as many shells (outer proby prot0typ1cal - General
Regarding deflection, remember there's also the linear rail itself. Which will be stiffer than the 2020...by prot0typ1cal - CoreXY Machines
BTW, the open box Z nut mount should be turned 90 degrees, so the openings are top and bottom, not side to side...by prot0typ1cal - CoreXY Machines
Seems there's room for a NEMA23, though using a worm drive gear box will also end any dropping worries.by prot0typ1cal - CoreXY Machines
My 2 cents, I'd go with the FT-5. The R2 is a 24v machine (though still 8 bit) The bed is Z, so tall skinny parts aren't a problem. Plenty of mods available on Thingiverse, and decent community (if you join their FB page, can save $ by reading the sticky). Enclosing it is simple, if you want a heated chamber or draft protection while printing ABS. Plus, it can be converted to CoreXY and 32 bit ifby prot0typ1cal - General
Quotethe_digital_dentist I just noticed in the earlier picture, the X axis guide rail has no mounting holes! What sort of rail is that? How did you drill it? Looks like a sheet metal cover. Some linear guides have a stainless strip to cover the bolt holes...by prot0typ1cal - CoreXY Machines
All that aluminum, and only 6mm belts? Or are they bigger due to scale :pby prot0typ1cal - CoreXY Machines
The most straight forward stepper location is on the arms (lowest point in the picture below), where the belts make a 180 degree wrap. Two steppers point up, and two down. So the arms will resemble two hammers, if you have an open frame like Hlidskjalf. For Hlidskjalf, I added more pulleys on the side for a 2:1 ratio. More for packaging, and "overly complex" for most maker's tastes. For Lars coby prot0typ1cal - CoreXY Machines
QuotePtitLu Yeah, I have already thought of it and what I was thinking was an extension of this architecture. The coreXYU has mechanical advantages over a two gantry coreXY. The non-moving X gantry adds its steppers to moving the gantry in Y, as the gantry will be the heaviest component you see the gain. A dual gantry coreXY will have the same number of steppers and belts as a coreXYU, the onlby prot0typ1cal - CoreXY Machines
As with most CNCs, programming is based on moving the head (tool). What actually happens is dependent on the architecture.by prot0typ1cal - CoreXY Machines
Absolutely it helps. Almost all industrial CNC machinery configure ballscrews in this manner. Yea, they have to be aligned to prevent binding, however it almost guarantees straight, wobble free motion. Think you'll be way happy with the 1605's.by prot0typ1cal - CoreXY Machines
Looks like what you need is end supports (bearing mounts). Also reduces whip. The screw passes through a bearing, and for ballscrews anchors the driven end with the flex coupling and motor on the outside. In my set up, motor is on the top, the spacer houses the flex coupling. Fixed bearing mount directly below, then a foating (free in Z) at the base.by prot0typ1cal - CoreXY Machines
QuoteTraumflug LinuxCNC misses the KISS principle. Nice Kelly Johnson referenceby prot0typ1cal - General
QuoteTraumflug Quoteprot0typ1cal handy in a production environment This is RepRap, so hobbyists, no production environment. Quoteprot0typ1cal work piece placement is always a variable, even if it can be worked around if you know where the part is relative to machine travel BEFORE programming. Didn't expect to have to explain such simple things to people talking about production environments.by prot0typ1cal - General
It's nice firmware is being constantly developed/improved. Might have to make a mill (4-axis) for myself now Yea, cutter compensation isn't a requirement, though can be very handy in a production environment where consistency in tooling diameter isn't guaranteed (wear, sharpening, etc.) Not that that is the type of work a DIY mill would be subject to. Tool length and work offsets are all veryby prot0typ1cal - General
Quote691175002 QuoteTraumflugCNC milling specials like cutter compensation are nice and dandy, but useful for manually written programs, only. I'm thinking more about work offsets, probing (not the z-bed kind), tool tables, etc... CNC without support for toolchange is extremely painful. And silly little things like circular interpolation...by prot0typ1cal - General
I've got Toranado's. The hot end is an insert:by prot0typ1cal - General
Good luck with that. CNC is subtractive manufacturing, and must take in more variables than additive manufacturing (3d printers). Machining away material requires a different approach, and will need dedicated firmware. Plus some kind of CAM software to develop the tool path, along with a post to generate the G-code for the intended platform (machine). Then there's stuff like work holding for thby prot0typ1cal - General
Thanks dc42, yea created a StaticBMP4Field (4 bit bitmap with a custom palette) to paint the pic. Plus had to limit maxHeaters to remove the boxes that get painted the background color to hide unused heater icons. Sweet that PanelDue is open source ! Regarding RRF, the V and W had problems getting the dual ballscrew to home with them hidden. Have home switches on both the Z and W (Z screws).by prot0typ1cal - CoreXY Machines
Modified the PanelDue display, just becauseby prot0typ1cal - CoreXY Machines
This is very similar to valve gates used in industrial injection molding hot manifolds. The only thing I would add is an additional plug to the horizontal feed line (through hole), so it can be cleaned in the event of a clog due to baked filament. Obviously, if the hot end is cold, operating the valve would be avoided.by prot0typ1cal - General