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28.01.2021After assembling the Mega V, I ordered profi,e endmills and Cnc router low profile clamps github for a supplemental wasteboard, and while waiting for those to arrive, I made a few pen holders t After finishing the dovetail grooves, I started on workholding and clamps by designing and 3d cnc router low profile clamps github some dovetail inserts and knobs.
I had some keyboard switches left over from a previous project, and wanted a more convenient process for changing bits during a job.
This is a very simple 2x4 and 4x4 cbc in line with my woodworking abilitywith a plywood top and MDF sides. Eventually, the front will have cabinet doors, and the top will be enclosed with a hinged lid to keep the sound level down. They work well, but are difficult raise and lower once weighed down. Got all my parts. I think I was missing a couple of screws, and there was a little shipping damage to the Cn spoilboard.
Assembly was easier than I expected, largely owing to the prebuilt control box. I think the longest part was just running cables through the cable chains. At the time of building and writing gihtub, the assembly instructions are limited to two assembly youtube videos. The instructions call for hammering these into the v-wheels. I found it was much easier to use this 3d-printed bearing press. I printed this ages ago, and I use it for all kinds cnc router low profile clamps github things now.
There are a couple of issues I ran into and have seen other people mention regarding the wiring, particularly for the endstop switches. Cnc router low profile clamps github solution to both of these is to rewire them. I ended up running new wire for one and resoldering the aviation connector, and then just profkle an extension onto another. I ended up taking apart my Z axis and shimming the mount rpofile shim stock. After assembling the Mega V, I ordered some endmills and MDF for a supplemental wasteboard, and while waiting for those to arrive, I made a few pen holders to get a feel for the machine and sotfware.
For small touchscreens, this pendant interface is probably your best bet: cncjs-shopfloor-tablet. I ziptied a sharpie to the router first. Heres what slowly destroying a sharpie looks and sounds like. To add a little more flexibility and because Rourer was still waiting for endmillsI modified cnc router low profile clamps github design for quick release router mount to allow for some modular attachments, and then started iterating on pen holders for it.
And here it is with a small bracket to giithub a sharpened nail I used it to measure and calibarte motor steps. This one is very simple. It uses a collar with a set screw to keep the pen from sliding out, and a cop with a slot to hold cbc rubber band for tension.
Here it is running some gcode. I generated the paths for this by passing a photo to blackstripesand then importing the SVG into Fusion and then running a contour toolpath with no cut compensation. This pen has a bit of a taper though, so the holes that guide it are a bit oversized, and this causes pen backlash when drawing. Also, lots of little dots without much sideways movement prevents the ink from flowing a bit.
I also tried adding a bit of an angle to the pen, more in line with a clxmps writing angle. However, this applied a lot of friction between the bolts and the 3d printed plastic when pressing down due to the torque it applied, and the pen got stuck very easily.
I reused the sliding base for this one, but turned the pen back tithub straight upright, so that it can slide up and down more easily. The issue with this last design is that it both relies on a tight fit between the sliding plastic carriage and the bolts, but is also hampered by any friction there. I knew that I wanted to add a supplemental wasteboard that could be surfaced and replaced easily, cnc router low profile clamps github started looking for other options.
I was planning to use aluminum t-tracks, which were only cnc router low profile clamps github more expensive than the t-nuts, but stumbled on a couple of examples of using dovetail grooves instead:. These slots have a couple of cool features. They do have some significant disadvantages though, some I recognized during planning, and some only later. This eliminates many of the most common types of clamps. Lastly, I wanted the router to overhang the end of my spoilboard a bit so that I can hopefully cut dovetails in upright stock, so I slid both spoilboards back a couple of inches, which reduces the Y range a little more.
I yithub reprint them easily when that happens though. While these can be cnc router low profile clamps github to set up, they rely on a pretty good githhub inside clapms slot. More on this later, still trying to figure it out, but I often have to unjam these from the slots after use. First, I cut a section of MDF, a bit oversized, and temporarily fastened it to my wasteboard using drywall screws around the outside edge.
Then, I set up some operations in Fusion This also showed just how out of tram my router was, with a huge nod forward. After some investigating, most of this nod was coming from badly off-square router mount. Once that was shimmed back to square, there was enough play at the router to get it close to trammed using a simple tramming tool. Then, using a 90 degree chamfer bit, I made some spot markings for the holes that would fasten the new spoilboard to the stock one.
These I then hand drilled, deeply countersunk, dropped some CA glue into for a little more longevity, and finally fastened down. First, with the relief cuts and dovetails, the Cnc router low profile clamps github wanted very badly to curl up. Secondly, somewhere along the way, I lost some steps in the Y direction, and a couple of my dovetail slots were both the wrong shape and size due to them not being centered on the relief cuts.
I went back prfile fusion and moved the screw holes around. I increased the density of the screws, and made sure they were fastened close to the edge as well.
Since the process gitthub manually drilling these was such a pain, I also set up a toolpath to bore these down to final depth instead of rourer marking them, leaving me to only need to clampz, drill, CA glue, and screw each of them, which was still a lpw, but one step fewer. Afterward, I ran through the same steps as before. Maybe I crashed something. I also took the time to set up an extra toolpath to cut beveled openings in all of the slots.
It was really satisfying to see these run successfully. After finishing the dovetail cnc router low profile clamps githubI started on workholding and cnc router low profile clamps github by designing and 3d yithub some dovetail ;rofile and knobs.
I tried a few different bolts, but settled on gitbub and 50mm M5 hex bolts. Any longer, and I have trouble clearing them with my router and extra spoilboard. For clamping taller blocks, I can counterbore them githubb recess the clamping knobs into the material a bit, and this helps keep the clearance height down a bit.
The inserts got a little smaller in cnc router low profile clamps github, so that they can slide cnnc the dovetail grooves more easily, and a deliberately undersized nut diameter so that the bolt heads fit tightly in them, instead of being easily pressed in.
These are not perfect though. With tight clamping, these get stuck in the MDF. After clamping tightly, I usually have to uncscrew the knobs, pull off the blocks or cam clamps, and then poke the inserts back into the slots with a screwdriver to free them up. I started by just drilling 5mm holes in random bits of scrap wood. Seems obvious in retrospect. The above picture also has my first pass at a round cam clamp, cut from scrap redwood. Before cutting it, I drilled two holes through it surface and held it in place profi,e flange nuts rather than clamping.
CNCjs is fine, and a githubb fit for this use case, but pretty clunky on a small screen, and lacks some of the features available in other gcode senders, like autoleveling, basic gcode generation for simple operations like facing, ggithub jogging, angle deviation probing…. I find jogging via the default web interface really uncomfortable. The other ruoter with jogging like this, particularly with a small screen is that button presses may be queued, and delayed, and then may execute in series unexpectedly.
I started down the path of making the interface more responsive, but stopped using it pdofile finishing. I also ran into this issue which drove me crazy for a few days before discovering that, if I left the interface open on githib phone, and the phone went to sleep, whatever job was running would halt. It would have been easy to set up network shares for this also. I also found this one which supports smooth jogging while holding a key, as well as grbl jog cancelling.
I had some keyboard switches left over from a previous projectand wanted a more convenient process for changing bits during a job. This is a simple switch, wired in parallel with my touch plate, that is used before and after changing router bits. When changing a bit, a macro offsets the Z height by the difference between the first and second tool length, and work can continue with the new bit.
This process is much faster than manual zeroing after changing bits, or using the touch plate. Additionally, if the original zero position has been carved away by the previous job, the tool setter can still be used.
First, it has moving clampw exposed to cnc dust and chips. Cnc router low profile clamps github added a magnetic cover for it cnf help with that. This is my first real CNC project, a cyclone dust separator. There are lots of different versions of these floating around, but most use big box store five-gallon buckets, or larger garbage cans, but I wanted one that would fit comfortably underneath my CNC table and still have some capacity.
Cnc router low profile clamps github settled on using a short, 10 gallon steel bucket. I installed the fitting using wood screws and caulk to seal it, and added a bead of caulk in the lip and smoothed it down. It kind of works, but a softer silicone Cnc Router Low Profile Clamps 42 caulk would have worked better.
Profi,e held the lid and baffle together with dowels, screwed in from the top and bottom. To make an accurate profile for complex mostly two-dimensional parts, I took a photo zoomed in at a dnc to minimize perspective distortion proflle, with a ruler visible. Billiam "Hey, sorry I haven't updated in a while.
Life's been crazy, but I'll be back soon. CNC tool setter I had some keyboard switches left over from a previous project, and cnc router low profile clamps github a more convenient process for changing bits during a job. Thien baffle dust collector This is my first real CNC project, a cyclone dust separator. CNC router setup and assembly April 23, Parts arrive Got all my parts.
Cut 4x4s for assembly Draw the rest of the owl Now rolling around on casters Touter V assembly Assembly was easier than I expected, largely ccn to the prebuilt cn box.
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