Finally got the shipping info for the new Laserboard. I’m hoping it’ll be here sometime in the next few days (probably not before the weekend though ) . Just wanted to keep this thread alive while I wait for some other items to finish the frame (had to order more 8020 profiles to mount the Z-Table the way that I wanted).
Not sure if I should post all the little items that I’m doing, but as I was thinking about it in researching things, not a lot of people post some of the little details one might like to see or know about. If this is too much, just let me know and I’ll not post the extra stuff.
With that, here is my make shift version of my end-stop mounts for the gantry and the crossbar carrier mount. I still have to design the left and right side cable carrier mounts to transition from the gantry to the frame itself, but that’ll have wait until I’m done with the Z-Table so I can mount the gantry in the frame. The way I’m mounting the Z-Table I didn’t want the gantry to get in my way until the Z-Table mounting is completed.
You will be able to tell if you look at the roller bearings that I truly attempted to maximize all possible travel distance of the carriage. For reference, I gave about 4-5mm as a buffer for deceleration stop movement once the switch was triggered. Of course this can all be changed quite easily by just cutting new mounts if needed.
I mentioned before that I prefer min/max switches (not just min) and there are multiple reason for it, but my main reason was to be able to adjust where the ‘home’ location is at. I didn’t like that the stock home location was going to be back right and I personally prefer back left home location like my K40 had. Don’t know really why I like it that way, but with mounting Min-Max it give me the flexibility to change it at will. The other obvious reason is to not have the axis’ bounce around if they should be told to move where they can’t.
Here is the left side crossbar limit switch (when facing the gantry from the ‘front’ where you would be typically looking at the gantry when using the machine).
And the alignment of the left side limit switch mount:
There is room for wiring under the carrier and that will exit to the left side cable carrier, along with other wiring for crossbar lighting that I will placed under the crossbar to help light up the working area but stay out of eye line of sight.
Here is the right side crossbar mounts:
Cable carrier mount on the carriage:
The way I designed the interlocking supports this acrylic (cast acrylic) and the acrylic adhesive I use make this plenty strong enough for the carrier, air assist hose and any other wiring I might want to run to this point. If it ever breaks, I can always cut a new one in a matter of minutes and either up the acrylic size or keep the same size. I do not expect it to break though as a prototype piece I made before I tested and stressed to the breaking point and it took a lot of energy to snap the acrylic.
Right side limit switches for Y axis travel:
Interesting thing about this location is the there are two holes right where the switch lever is at that you can mount a M3 screw that would could be used to adjust the actual location where the switch would activate at. Probably becasue this was the stock location for a limit switch, but I wanted to use mine and not the basic ‘switch’ that came with the gantry.
Other updates: Well, I’m not sure if I’m unique about this, I’m impatient. I typically like to work with cash as much as possible, but I broke down and dusted of an old credit card I havn’t used for years and decided to buy a few more items…
- LightObject Water Chiller LO-Q600W
- LightObject Pro 25mm Beam Combiner Mount with Laser Pointer
- LightObject 60W PWM CO2 Laser Power Supply
- SPT 60W CO2 Laser Tube (from LightObject)
I’m a Master Scuba Diver, Divemaster, and Tech Diver and I now have to go looking for a sharks to bring home… Why?
I know I wanted the RECI 80, but they were out of stock and very pricey compared to the SPT 60W. I had to err of the side of compromise (money compromise). I don’t want to say I skimped becasue now that the tube is here, I am super surprised at the quality of the tube!!! This thing looks like it’s going to rock!! High-quality glass and water inlet/outlet and a massive plus of high-quality pre-wiring on both positive and negative sides (not the cheap crap on a Chinese laser you have to always redo).
This SPT 60W has specification of 60W at 22mA current max.
LightObject evidently tests each tube before it goes out as it came with a test report of the tube dated 7.13.2020.
The test report says it does 60W output at 12mA current. That is about half of the specified max current which means there is lots of overhead room before hitting max current. I know the test was at 7 inches and I’ll probably have to move up the current to get 60W at the table after going though a beam combiner, mirrors, and a lens. BUT, it’s not going to need a another 12mA’s to get to 60W at the table, so lot’s of headroom for usage of the tube before it drops below 60W at 22mA.
The most important thing for me was I current feel it is money well spent (currently have no buyers remorse at any level). I’m sure you know that when you spend a lot of money and the items comes in you sometimes feel like it wasn’t worth the money or at least not the price that was paid. The tube feels great and already had high quality pre-wiring and that was actually a massive bonus not expected. Of course time will tell once I fire this beast up and dial it in to really see if it was worth the money.
This thing is long, 1250mm
This now officially makes this a new build and not a conversion. Nothing is coming out of the K40 anymore.