GrantNOVAROBOTICS

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About GrantNOVAROBOTICS

  • Rank
    New Member

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  • Location
    Staffordshire
  • Interests
    Laser Engraving & Machine Manufacture

LW Info

  • Leatherwork Specialty
    Beginner
  • Interested in learning about
    Effects on material, general knowledge about leather
  • How did you find leatherworker.net?
    word of mouth

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  1. GrantNOVAROBOTICS

    40W Chinese Laser - Engrave and Cut Leather - Discuss

    Have a peep at these links maybe... https://www.ebay.co.uk/itm/192930340242?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649 https://www.ebay.co.uk/itm/192931718520?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649 Face-Book Search here & plenty of movie clips.... Nova Robotics - Lasers & 3D Printers NOTE - shipping these out of the UK will need some discussion, but is possible.
  2. GrantNOVAROBOTICS

    My mini laser engraver

    This may be of interest to people wanting to laser more or bigger parts - 15 watt power, 800mm x 400mm work area. Tt can be flat packet into 3 chunks for compact shipping world wide. There is also a version with complete exhaust extraction, air assist at cutting area, Safety viewing lens drop down over cut area for office use. https://www.ebay.co.uk/itm/192888020182?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649 Regards to all from the UK
  3. GrantNOVAROBOTICS

    Nova-Pro 15000mw 800mm x 400mm laser

    https://www.ebay.co.uk/itm/192888020182?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
  4. GrantNOVAROBOTICS

    Laser engraved maker's mark.

    Word for the WIZE - as some have already mentioned, & as a seasoned 3d Printer user & Lasers too.... MOST of the gasses released by the act of Lazing & 3d Prnting include Formaldehyde, Arsonide, Cyanide + gasses of 100% saturated Sulphuric Acid vapour from Lazing PVC plastics. The Sulphuric vapour from Lazing PVC will take out your eyes & vision in seconds - permanently ! Equally toxic & poisonous is to laser MDF wood, which gives off ALL of the above AND some carcinogenic toxins too, for good measure. Ventilation extraction is a MUST. Stay safe - Stay above ground.
  5. GrantNOVAROBOTICS

    Nova-Pro 15000mw 800mm x 400mm laser

    Nova mail address = NovaRobotics.UK@gmail.com
  6. GrantNOVAROBOTICS

    Nova-Pro 15000mw 800mm x 400mm laser

    Good evening Gents. Re 15 Watt Laser information... 15 Watts / 15,000mW is it's MAXIMUM on power. Thee lasers are Pulsed at a high frequency & at their full power output.... They are either ON or OFF..... there is no in-between. so at their 50% power output level, they are in the ON state for 50% of the time.... this allows a small recovery time for the laser diode to disperse heat during its duty cycle. YES this generates heat in the laser module itself, but the unit is enclosed in a large box-section heat-sink which is fan assisted, thereby allowing it to run for several hours with no problems. In all fairness to the Laser Diode Module... it should not be pushed much more than 50% of it's rated output.... to compare - my BMW X5 is rated at 250hp with a top speed of some 140 Miles an hour..... but the engine & transmission won't last long at maximum speed all day every day. However, it will easily do 200,000+ miles at 70 miles an hour, all day every day for years on end..... These Diode lasers are much the same in their capabilities. At the power levels & movement speeds to get clean engravings, we are probably looking at about 15-20% output at 50 to 100mm/sec travel speed or less, & the laser can probably run all day without issues - (provided it has forced air cooling). I would expect the operator to start flagging before the laser does As per some trial tests when I delivered the machine, it was producing nice sharp etchings of Tan Leather at some 8% output with a travel speed of some 60mm/s... and will run at this output level Indefinitely or until the operator falls asleep & does not re-start the next work operation. Understand also, that we also have the luxury that the engraving leather works are a given size, & the materials will need swapping out frequently - allowing the laser module to cool further still. ***As a point of interest, the laser module's heat sink will likely only get warm to the touch even with a 50% power duty cycle of an hour or more any way. To ensure reliability of these machines, the power supply units have a 400% redundancy, 300% redundancy for the power electronics pushing the X/Y carriage motors, & the laser cooling fan unit pushes 400% more air through it than actually required. When I started developing & testing these lasers & support electronics 2 years ago, I tortures the lasers, motors & electronics to find the weaknesses. There are some budget items available out there to save a few pennies, but in the end i decided to get the BEST available, & use the Best fan cooled power supplies, the best motherboard electronics & the best lasers available.... then I over cooled the whole lot just in case some thing was over-looked. This has resulted in some robust engineering & electronics that I am very proud of. Customer Care is something Nova takes great pride in... considering a person can spend £700 of their VERY Hard-Earned money with my business... it is only fair that their new toy simply works, year on year & keeps the customer smiling & earning money.
  7. GrantNOVAROBOTICS

    Nova-Pro 15000mw 800mm x 400mm laser

    That would definitely be interesting Sir Grant B
  8. GrantNOVAROBOTICS

    Nova-Pro 15000mw 800mm x 400mm laser

    Kind words Mr Bermuda - thank you. Some pics meanwhile