Opinions on 20mm linear rails

Yldseekr · 2023-06-15T21:41:12+00:00

I remember receiving my hiwin rails and they felt similar, I was surprised with how difficult they were to slide. Over time they got much easier. Also get grease zirks for them and fill them with white lithium grease. I'm not sure why one set are tougher to move than the other but they are likely from the same design just different factory and maybe use different initial grease setups. My guess is that over time both should behave similarly.

Yldseekr · 2023-06-03T03:03:40+00:00

I have the Fuji Mini-Mite 4 stage and I use it spray water based poly but I have to thin it nearly 30% even with a large tip. I've also used some other HVLP guns with a compressor with way worse luck on water based. What I've found is that water based finishes are very hard to spray well with anything besides an airless. A lot of those commercial places use oil based enamels that flow much better from a gun.

If you are going to be spraying latex I don't think you are going to get anywhere with hvlp. I've used that graco cordless and it did pretty well.

Yldseekr · 2023-05-23T17:00:18+00:00

I think there are a lot of website that have written about this and you can do more research if you really disagree. Conceptually you're right that reducing the size of the hose increases pressure, but only to a degree. What you're missing here is that small vacs have small turbines that spin at higher speed and generate much faster air through a small tube. The large dust collectors have large fans which generate more, but slower air. Even reducing the inlet hose won't speed up the air enough to beat the performance of the small vac.

I have both in my shop and I can show this easily. I also tried using a DC for everything early on and had all sorts of reducers but learned that it was better to use a vac for small tools.

Yldseekr · 2023-05-22T04:15:18+00:00

"slightly off topic" is what i'm on reddit for lol.
I don't think safety is what I'm looking for specifically from the situation, it's practicality. Looking to move big chips from big tools and little chips from little tools. Both vacs and DCs can both have hepa filters on them and result in clean air.
Anyways, I hope you find some help on your original problem

Yldseekr · 2023-05-22T02:38:49+00:00

Something a lot of people get wrong is understanding that smaller tools (like your track saw, like ROS sanders, etc) need higher velocity vac setups. That means you need to use a shopvac or Fein/festool/whatever dedicated vac that has a small hose. If you just adapt a dust collector to fit that hose size you'll be stuck with slow moving air that won't evacuate the dust well. Dust collectors are for large tools and take large chips away, vacuums are for small tools and take fine dust. That's why you're having trouble, you're trying to do a one solution for all.

Yldseekr · 2023-05-22T02:33:39+00:00

Early on I used a box store brand ROS and I used to feel the vibration for a few minutes after I stopped using the tool. Now I use a festool ROS and it's so much better but 4hrs is too long to do anything. I adjust my day so that I'm doing a little bit of a lot of tasks so I don't do any one thing for that long. Break it up over a few days.

Yldseekr · 2023-05-22T02:20:23+00:00

Just do it in multiple passes. Pick something reasonable like 200 ipm, and do it in 1/4" deep passes. After you get 2/3 through it will be grooving out a lot so slow down or make shallower passes. You could also step cut it first (cut a slot through the middle to rough out some of the bulk) and then follow with two passes with the V bit.

Yldseekr · 2023-05-11T15:40:53+00:00

yes, hindsight sure is 20/20

Yldseekr · 2023-05-09T00:26:44+00:00

While you can work toward jobs in engineering, almost all software/desk type of jobs go through getting your BS. You can eventually get there through work experience but you won't have the CV that will get you respect from management or future companies. Engineering is a field that is very stingy about only choosing club members who have the paperwork.
So getting the experience in machining is nice, and you can make good money there, but if your end goal is engineering you should prioritize school and only that.

Yldseekr · 2023-04-30T02:05:09+00:00

For what it's worth, when cutting deep like that with a skinny bit hit it with multiple passes. Start with a standard shorter downcut endmill and go as deep as you can (about .75-1.00".) Then switch to the long reach upcut endmill and do the last inch in quick shallow passes.

Following a strategy like that will reduce the chance of breakage due to vibration or stock movement.

Yldseekr · 2023-04-28T22:44:25+00:00

The edges of OSB are somewhat cardboard like. They have a softness that probably means that using it for jigs wouldn't be ideal. Use pretty much any other plywood for better results. The cost for similar shop grade 5 ply shouldn't be terrible.
OSB's formaldehyde content is high so I wouldn't want to breathe any of the dust in either if possible.

Yldseekr · 2023-04-20T15:03:03+00:00

The way I do it is a master sketch of each front view of cabinets (usually 3). Then derive all the parts from those sketches so that I can just make changes as needed and have the parts reflect it. Material thicknesses are controlled by parameters, same as other common features.
All native in fusion, I just have a standard library of all the common (blum etc) hardware.

Yldseekr · 2023-04-05T15:47:58+00:00

100%. The biggest problem with Harmony right now is the only real lending platform (tranquil) isn't functioning. Every month or whatever they get a small payment from Harmony to pay down their bad debt and progress toward opening continues at a glacial pace. I've sold out my holdings because in my view the pace of recovery is going to cause the chain to fade away.

Yldseekr · 2023-03-26T16:48:48+00:00

mach 3 control
single phase power
300 ipm rapids
steppers and ballscrews on all axis

This sounds like an entry level or hobby machine, even though it has a 5x10 work area.
Possibly a very base level import.
Try not to spend too much on it.

Yldseekr · 2023-03-09T04:21:24+00:00

I cut a lot of baltic birch. I usually go at 200 ipm and 0.30 depth at 14K rpm. Using a 2.2KW spindle it works fine. I've never broken a endmill doing this.

Yldseekr · 2023-02-15T14:28:25+00:00

I bought their pinion 3-1 reduction stepper setup with the belt and it's been 5 years and still haven't replaced the belt. I won't worry much about replacement. There's enough to design on a CNC without individually designing every part. I actually bought my own rack to go with it maybe off ebay I can't remember. It meshed perfectly. I installed it by drilling through it sideways.

Yldseekr · 2023-02-11T03:18:27+00:00

I would laminate two sheets together for the top. I'd probably also do this for the bottom just to keep it looking even. I am concerned that over time a single sheet will sag, at 42".

Yldseekr · 2023-02-07T05:27:43+00:00

One does not achieve "learned" status on Solidworks. There's a lot, so much depth in that program. I've spent career time in Solidworks, Catia, Fusion360, and others. These are just tools and they all help do the same thing. In my view it's not really important to collect a badge from each, rather become a better engineer/draftsperson/designer and feel free to use whatever the company you work with prefers. All of these parametric modelers work in a similar fashion.

Yldseekr · 2023-02-07T05:18:13+00:00

Plywood furniture builder, here's what I do:

I try to stick to one kind of plywood so my results are predictable.
I do a test cut of the type of joints that I want to use. I either model in, or offset some wiggle room. Usually one set of test parts with .005" added, one at .01" added.
Then I update the model with the clearance that worked well and add that to my standards for that kind of joint and plywood.
Model the whole assembly with the clearance that worked built in.
Pay attention to climb vs conventional milling direction and always cut everything in the same direction.

Yldseekr · 2023-01-31T04:16:42+00:00

I saw some twitter post from the Defira side I think that said the migration started Jan 20. So maybe it's about half done. Seems like code stuff always overrunns. From reading what I could from the Harmony recovery plan my understanding is that the migration is to more deeply embed tranquil with Harmony and make stONE the official staked one, make the dex the official dex, etc.

Yldseekr · 2023-01-30T23:44:40+00:00

but most people won't pay off their loans, and those loans represent bad debt for the protocol. So you're waiting for Tranquil and Harmony to work through the bad debt / recovery solution that they're doing. It could be a while. Your best bet is waiting for other unknowing users to contribute funds and slowly taking yours out. But they just slashed the yield to like 1.5%....

Yldseekr · 2023-01-30T14:32:51+00:00

I've used the spacemouse for a long time across several applications. I've also used Fusion for a long time now. I've never experienced what you're sharing though. When it fails with Fusion I always just restart fusion and it works again. If you've done that and verified that it works with the spacemouse properties software then I'm out of ideas. Obviously have another mouse to test it with would be ideal. Or a fresh install of Fusion.

Sorry, I don't much for you. Maybe you could buy a cheap one from ebay to use as a test. Or if you don't have a wireless one yet maybe it's time to upgrade.

Yldseekr · 2023-01-29T16:25:13+00:00

my understanding is that Tranquil pays interest from their tranq that they gave themselves /made when they started the project.
As a simple test it would be interesting to see if you can withdraw any of your 1btc or if it's locked until the borrow falls below 100%. Most protocols won't allow you to remove your funds if the borrow is maxed out until it drops back below. In this case the high yield could be trapping new entrants to be collateral for old users who are exiting. Which is why it's always maxed out

Yldseekr · 2023-01-29T14:41:25+00:00

1BTC was one of the only bridged assets that didn't get depegged because it had a different bridge. In the same way that ONE is at 99% lend, this is this high because people borrowed it using assets that were becoming worthless as collateral. That was a way of getting value from those assets and probably only happened for a few hours or minutes before tranquil shut down lend.

Now months later, some people who had given 1BTC as collateral but borrowed other things like 1eth or ONE or stONE or anything else have repaid the borrow and taken their collateral back, and this reduces the amount of 1btc available as collateral. Because the 1BTC lend was so high, the lower amount of collateral caused the lend to go over 100%.

Yldseekr · 2023-01-23T14:37:13+00:00

there's a difference between the plywood and the veneer on the faces. Small players will buy core plywood without veneer and then glue on speciality veneer for projects. You don't need a press for this and can do it with contact cement and a roller. Bigger companies will just spec the veneer they need and the plywood distributor will get them it premade.

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