I love their works, they are impressive. I've been thinking about building a PrintNC for a year now. I'm curious what electronics you are using in your machine. Thank you very much and congratulations for your work
I am really curious if you have done anything else to your PrintNC in order to have such stability and good surface finishes, I know speeds n feeds have a lot to do with this but still, your frame appears very rigid and minimal vibrations. I am interested in building my own PrintNC, but I think I will be mostrly using it for wood while learning.
Is mankind doomed? Do you ever just sit there and watch toolpaths and think "How the hell did it come up with that!"... but you won't be able to fault it. It's all a bit scary! 😱 😜 I love what you do, thanks for the videos. L & S. 👍
The problem with using tape to affix raw bar or sheet stock to a fixture plate is the raw material is subject variations in flatness and thickness. This is true even of MIC-6 tooling plate, even though it is Blanchard ground. The piece of bar stock shown in this video fortunately does not suffer from bow or twist, else it could be dislodged during machining. However, it is a best practice to secure the material by using a low-profile side-clamping solution and flatten the top surface if tape will be used. It is very annoying (and potentially costly) to have the workpiece thrown free of the table.
@@TodestelzerHaving worked for many years as a machinist and manufacturing engineer, I've long ago mastered surfacing and squaring material. You can't secure warped plate by taping it down to surface one side. Doing so creates a risk of the material being launched as a projectile into the shop. The material will also not be flat after surfacing. I see a lot of UA-cam videos where the surfacing operations do not result in a flat piece of material. The problem is the workman forces the warped material down, restrains it, then surfaces one side. The internal stresses return the material to its warped condition once the restraints are removed. The touted advantage of MIC-6 tooling plate is that it has already been surfaced by Blanchard grinding and is supposed to be flat. I've received large MIC-6 tooling plates of 1/2" to 1" thickness that were bowed and twisted by more than 0.050".
Granted, it's not what is done commercially, but this is a home CNC make one-off parts. The piece stayed put, and the part completed without issue. Have used the same method myself countless times. If the material is reasonably flat, it is held down securely enough that the piece can be a challenge to remove afterwards. Good enough for this kind of operations.
@@AG-cg7lk It is typically held down well enough, but if the material is not flat there is a risk of it becoming a projectile. I've yet to see a single hobbyist UA-camr checking the flatness of material before using tape or vacuum hold down and communicating the potential risk of injury. The potential injuries are similar to those involving kick-back on table saws - they can be severe and life altering. Safety first!
You made your point in your original message. In my experience the risk is low but grown adults using machinery need to assess the level of risk they are prepared to accept and be accountable for their own safety. If you think this guy's method is too high risk, that's your choice to make. There are many potential risks using a CNC.
I remain in awe of the holding power of painter's tape and CA glue
surface friction man, its a crazy thing.
Very nice thx Fro Video !. Gretings from Poland !
I love their works, they are impressive. I've been thinking about building a PrintNC for a year now. I'm curious what electronics you are using in your machine. Thank you very much and congratulations for your work
you are doing a very good job
perfection !
I am really curious if you have done anything else to your PrintNC in order to have such stability and good surface finishes, I know speeds n feeds have a lot to do with this but still, your frame appears very rigid and minimal vibrations. I am interested in building my own PrintNC, but I think I will be mostrly using it for wood while learning.
Is mankind doomed?
Do you ever just sit there and watch toolpaths and think "How the hell did it come up with that!"... but you won't be able to fault it. It's all a bit scary! 😱 😜
I love what you do, thanks for the videos. L & S. 👍
10/10
Do you have a shop where to buy some item ?
The problem with using tape to affix raw bar or sheet stock to a fixture plate is the raw material is subject variations in flatness and thickness. This is true even of MIC-6 tooling plate, even though it is Blanchard ground.
The piece of bar stock shown in this video fortunately does not suffer from bow or twist, else it could be dislodged during machining. However, it is a best practice to secure the material by using a low-profile side-clamping solution and flatten the top surface if tape will be used. It is very annoying (and potentially costly) to have the workpiece thrown free of the table.
You can surface it flat and than glue it again on the milled surfaced. This way you will get an accurate z height as well.
@@TodestelzerHaving worked for many years as a machinist and manufacturing engineer, I've long ago mastered surfacing and squaring material.
You can't secure warped plate by taping it down to surface one side. Doing so creates a risk of the material being launched as a projectile into the shop. The material will also not be flat after surfacing.
I see a lot of UA-cam videos where the surfacing operations do not result in a flat piece of material. The problem is the workman forces the warped material down, restrains it, then surfaces one side. The internal stresses return the material to its warped condition once the restraints are removed.
The touted advantage of MIC-6 tooling plate is that it has already been surfaced by Blanchard grinding and is supposed to be flat. I've received large MIC-6 tooling plates of 1/2" to 1" thickness that were bowed and twisted by more than 0.050".
Granted, it's not what is done commercially, but this is a home CNC make one-off parts. The piece stayed put, and the part completed without issue. Have used the same method myself countless times. If the material is reasonably flat, it is held down securely enough that the piece can be a challenge to remove afterwards. Good enough for this kind of operations.
@@AG-cg7lk It is typically held down well enough, but if the material is not flat there is a risk of it becoming a projectile.
I've yet to see a single hobbyist UA-camr checking the flatness of material before using tape or vacuum hold down and communicating the potential risk of injury.
The potential injuries are similar to those involving kick-back on table saws - they can be severe and life altering.
Safety first!
You made your point in your original message. In my experience the risk is low but grown adults using machinery need to assess the level of risk they are prepared to accept and be accountable for their own safety. If you think this guy's method is too high risk, that's your choice to make. There are many potential risks using a CNC.