Page 1 of 2 12 LastLast
Results 1 to 10 of 11

Thread: Lasever cant mount on a 3.5mm baseplate...

  1. #1
    Join Date
    Nov 2010
    Location
    The Netherlands
    Posts
    1,066

    Default Lasever cant mount on a 3.5mm baseplate...

    While lasever first said it was ok, now he says it is a problem. They say 3,5mm is a too thin plate to mount the pbs ect on like here:
    http://www.photonlexicon.com/forums/...7&d=1334582516
    For me it cant be thicker then 3,5mm because thats the beam height im working with. Cant lasever mount the parts on the thin plate and then use glue or something?
    Or is a 3,5mm plate fine in the first place? They asked for 5mn but i think 1,5mm will make the beam enter my galvo's to high.
    ThAnks.
    Last edited by borgqueenx; 06-18-2012 at 21:03.
    You are unique! Just like everyone else...
    Mum: What do you want for breakfast? Me: Lasers Ofcource!

  2. #2
    swamidog's Avatar
    swamidog is online now Jr. Woodchuckington Janitor III, Esq.
    Join Date
    Nov 2006
    Location
    santa fe, nm
    Posts
    1,545,795

    Default

    those requirements are probably due to thermal and rigidity constraints that dont get met by the 3.5mm plate. an easy way to work around the beam height issue is to use a pair of steerable mirror mounts (like mm1's).

    bounce the beam into the first one and use it to angle the beam up, then bounce the beam into the second one, and use it to level the beam at whatever height you need. this is called "double bouncing" and it makes alignment much easier.

    here's an example:

    Click image for larger version. 

Name:	rgb-build-025.jpg 
Views:	46 
Size:	243.3 KB 
ID:	33205




    Quote Originally Posted by borgqueenx View Post
    While lasever first said it was ok, now he says it is a problem. They say 3,5mm is a too thin plate to mount the pbs ect on like here:
    http://www.photonlexicon.com/forums/...7&d=1334582516
    For me it cant be thicker then 3,5mm because thats the beam height im working with. Cant lasever mount the parts on the thin plate and then use glue or something?
    Or is a 3,5mm plate fine in the first place? They asked for 5mn but i think 1,5mm will make the beam enter my galvo's to high.
    ThAnks.
    suppose you're thinkin' about a plate o' shrimp. Suddenly someone'll say, like, plate, or shrimp, or plate o' shrimp out of the blue, no explanation. No point in lookin' for one, either. It's all part of a cosmic unconciousness.

  3. #3
    Join Date
    Nov 2010
    Location
    The Netherlands
    Posts
    1,066

    Default

    I think its because the parts would be too loose on 3,5mm. I have a 10mm baseplate so that wouldnt be a huge problem.
    There is a problem on the beam height. You want*28.5. The beam height is 25 of the LSR532NL. Then the base plate is only 3.5mm. It is too thin.*Too thin a board will get wingle and cricle easily. Can we make beam height larger like 30mm?
    Nice picture, but i dont have room for those mounts:/
    You are unique! Just like everyone else...
    Mum: What do you want for breakfast? Me: Lasers Ofcource!

  4. #4
    Join Date
    Nov 2010
    Location
    The Netherlands
    Posts
    1,066

    Default

    Okay lasever now said:
    * As you know, a baseplate is flat on its surface, right ?
    ** But 3.5mm is too thin to keep flat when bearing the module on it.
    ** The surface of the baseplate will be distorted because of the weight on it.
    Anyone can help me? Is this making so big distortions that the green will move micrometers so it will be out of line of other colors?
    You are unique! Just like everyone else...
    Mum: What do you want for breakfast? Me: Lasers Ofcource!

  5. #5
    Join Date
    Dec 2008
    Location
    veenwouden
    Posts
    2,580

    Default

    3.5mm baseplate? why not use a sheet of tinfoil


    Interested in 6-12W RGB projectors with low divergence? Contact me by PM!

  6. #6
    swamidog's Avatar
    swamidog is online now Jr. Woodchuckington Janitor III, Esq.
    Join Date
    Nov 2006
    Location
    santa fe, nm
    Posts
    1,545,795

    Default

    yes. don't use anything thinner than 6.35mm.


    Quote Originally Posted by borgqueenx View Post
    Okay lasever now said:

    Anyone can help me? Is this making so big distortions that the green will move micrometers so it will be out of line of other colors?
    suppose you're thinkin' about a plate o' shrimp. Suddenly someone'll say, like, plate, or shrimp, or plate o' shrimp out of the blue, no explanation. No point in lookin' for one, either. It's all part of a cosmic unconciousness.

  7. #7
    Join Date
    Jun 2009
    Location
    St. Louis, MO
    Posts
    1,254

    Default

    Put a spacer under your scanners etc.

    Quote Originally Posted by borgqueenx View Post
    While lasever first said it was ok, now he says it is a problem. They say 3,5mm is a too thin plate to mount the pbs ect on like here:
    http://www.photonlexicon.com/forums/...7&d=1334582516
    For me it cant be thicker then 3,5mm because thats the beam height im working with. Cant lasever mount the parts on the thin plate and then use glue or something?
    Or is a 3,5mm plate fine in the first place? They asked for 5mn but i think 1,5mm will make the beam enter my galvo's to high.
    ThAnks.

  8. #8
    Join Date
    Feb 2011
    Location
    Knutsford, UK
    Posts
    286

    Default

    Quote Originally Posted by laserist View Post
    Put a spacer under your scanners etc.
    Seconded, I did this to match my highest beam height:


    Click image for larger version. 

Name:	IMG_0796.JPG 
Views:	16 
Size:	1.19 MB 
ID:	33206Click image for larger version. 

Name:	IMG_0797.JPG 
Views:	23 
Size:	1.11 MB 
ID:	33207

  9. #9
    Join Date
    Nov 2010
    Location
    The Netherlands
    Posts
    1,066

    Default

    ok a spacer it is, thanks.
    i dont got alot of other options
    You are unique! Just like everyone else...
    Mum: What do you want for breakfast? Me: Lasers Ofcource!

  10. #10
    Join Date
    Dec 2008
    Location
    veenwouden
    Posts
    2,580

    Default

    Yes do a plastic one great for tranferring the heat from your scanners. You can prepair the email upfront to send it to DT that your scanners are broke


    Interested in 6-12W RGB projectors with low divergence? Contact me by PM!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •