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-   -   Mission accomplished "license to thrill" (https://www.t-shirtforums.com/diy-dtg/t120740.html)

lmfoil August 20th, 2010 03:23 PM

Re: Mission accomplished "license to thrill"
 
thanks for the heads up after my last message i went to a home depot an employee was cutting a shade for some else and he gave me a 11 inch wide scrape roll so i can try it out but i have to trim one side abit not truely square but it was the right price for R&D how wide is your belt it is hard to tell from the pic?
thanks for the tips on seaming now i need a wife to iron HEHEHEHE

jap71rx2 August 20th, 2010 05:46 PM

Re: Mission accomplished "license to thrill"
 
Quote:

Originally Posted by german13 (Post 746760)
thanks for the kind words..

working on implementing a rack and pinion drive to the design... should have a vid coming soon stay tuned..;) the new design is done just waiting on some mods for the rip for testing and wrapping up a few loose ends

i...pm'd you as well:)

ok mate will wait for new design rack and pinion etc

102557 August 20th, 2010 06:22 PM

Re: Mission accomplished "license to thrill"
 
Quote:

Originally Posted by lmfoil (Post 747102)
thanks for the heads up after my last message i went to a home depot an employee was cutting a shade for some else and he gave me a 11 inch wide scrape roll so i can try it out but i have to trim one side abit not truely square but it was the right price for R&D how wide is your belt it is hard to tell from the pic?
thanks for the tips on seaming now i need a wife to iron HEHEHEHE

the belt is 1/2 wider on each side of the top shirt holder, so the print width is 13" and length is 19' your top plate is 13x19 and your bottom plate is 14x21 this gives an inch for the shirt hang front and rear..;)

this makes your belt width 14 aswell to keep platen from moving side to side while in travel (side registration)

lmfoil August 20th, 2010 07:13 PM

Re: Mission accomplished "license to thrill"
 
thanks i had built the c88 version from the online plans about 2 years ago it is long since gone one of my kids took it to college i never saw it again
I just aquired a r1800 and was researching to build again and your belt drive is intriguing thank you for your ideas i might even make the base out of plexi instead of wood this time cut some weight from the project
well keep up the good work ttyl bye

102557 August 20th, 2010 08:43 PM

Re: Mission accomplished "license to thrill"
 
Quote:

Originally Posted by lmfoil (Post 747200)
thanks i had built the c88 version from the online plans about 2 years ago it is long since gone one of my kids took it to college i never saw it again
I just aquired a r1800 and was researching to build again and your belt drive is intriguing thank you for your ideas i might even make the base out of plexi instead of wood this time cut some weight from the project
well keep up the good work ttyl bye

if you use acrylic (lexan) available at any home store.. you can solvent weld it with MEK (lowes etc) its a parts cleaner-solvent with the consistency of water..main ingredient in many plastic glues.. use in a well ventilated area in pure form! have a jig for your fabrication -use a hypo applicator to weld..the bond is instant and irreversable..so make sure its where you want it when you solvent weld;) the bond is 100% strong as the parent material..its not gluing (solvent welding... it softens the molecules of the material and then rehardens in a fraction of a second combining the molecules of the pieces to be married actually forming one piece...:) other plastics can be done this way aswell, but the best two are acrylic-abs in that order.. there are some really cool things you can do with acrylic..polish the edges with a map gas torch-tint-stain-paint etc etc.. did i say i love plastic..lol:D

lmfoil August 21st, 2010 06:12 AM

Re: Mission accomplished "license to thrill"
 
Yeah i love the mek and acetone melt i use it for that purpose all the time
I work in a pad print shop so i am around the acetone and mek all the time we also do sonic welding so crafting of the base should be easy i was thinking of just using the heat bending table for the base 24" x 30"? to bend or maybe use square hollow pvc post like a gutter drain then melting them to a base i can run the wiring inside the hollow post. just need to figure how to manipulate the power supply but for now i am going to work on making the belt with my test material. i willl check back in later bye

macfrett August 21st, 2010 01:44 PM

Re: Mission accomplished "license to thrill"
 
what the textile material you have use to drive the t-shirt Holder??

i have use the elastic textile material in my printer but i have problem with my printing result...:(

this is my printer :p
https://www.t-shirtforums.com/diy-dtg/t127011.html

102557 August 21st, 2010 03:58 PM

Re: Mission accomplished "license to thrill"
 
Quote:

Originally Posted by macfrett (Post 747537)
what the textile material you have use to drive the t-shirt Holder??

i have use the elastic textile material in my printer but i have problem with my printing result...:(

this is my printer :p
https://www.t-shirtforums.com/diy-dtg/t127011.html


pg 13 of this thread..permalink 194,195...

darkwar August 23rd, 2010 09:55 AM

Re: Mission accomplished "license to thrill"
 
great work i from mexico you have a plans or digrams or other video, i need help whit the paper sensor

i like our desing is cool and very very cute

sorry for my english

lmfoil August 23rd, 2010 11:39 AM

Re: Mission accomplished "license to thrill"
 
Hey German
Thanks for the tip on the vinyl. i made a couple test belts yesterday i over heated them a bit when i went to melt them i was in a hurry and got distracted but i like the process i used my t shirt press set it to about 300 degree for 20 sec but the weld looks great just need to set it so i dont touch the rest of the material so i get a perfect seam. thanks again. I have to go to south carolina this week my nephew is graduating from army boot camp thursday and i am driving down there to see him so i wont get back to my r1800 build project this week

102557 August 23rd, 2010 02:21 PM

Re: Mission accomplished "license to thrill"
 
glad its working for you... drive safe.. and my regards to the service man!!!

102557 August 23rd, 2010 05:39 PM

Re: Mission accomplished "license to thrill"
 
just wanted to update on the new printer...

Initial testing has been very successful, i have had to make a few changes etc to the platen base design to accomadate its new features.. it has been completly reworked as far as its operation... most of the time consuming elements consist of reworking the base platen dementions (a 1/4 change requires new base to be made) you can only plan so much on paper then the real world elements have to be dealt with regarding various methods of drives we have tested...

anyway one of the biggest upgrades is now the printer sets registration automatically!!! (heres a hint i no longer run in roll mode! its very very exciting to say the least... i owe a big thank you to ek rip for making alot of this possible.. they have accomodated every adjustment i needed (Chris your the man!) so alot of the design is done with mechanical upgrades and the other portion with advancements and adjustments made possible with the rip software..

I have been using templates etc for testing..I will begin Implementing the new componets into a permanate fixture now, i had a 3am morning the night before it doesnt far well with the day job leaving at 5:30am:) So im going to take a brief break and get back at it, its hard to disconnect from the project when its this close..cant wait till you guys see this... shes reincarnated with attitude..lol:)

to be continued...............................

sunoracle August 23rd, 2010 07:43 PM

Re: Mission accomplished "license to thrill"
 
Hello, Jeff, set registration automatically and not work in roll mode? Is it just using the EK rip to get that ?
bty, have you finish your teethe to teethe drive transport system ?

102557 August 23rd, 2010 08:24 PM

Re: Mission accomplished "license to thrill"
 
Quote:

Originally Posted by sunoracle (Post 748875)
Hello, Jeff, set registration automatically and not work in roll mode? Is it just using the EK rip to get that ?
bty, have you finish your teethe to teethe drive transport system ?


its using the pw sensor in the bottom of the print head (photo sensor or reflective photo interupter).... it searches for the edge outside of roll mode (sheet mode) and its the front edge of the platen unlike in roll which first searches the side edge (to make sure an object is present and during printing so its the width in roll mode.. you can see this for yourself by watching the difference on print start between roll and sheet with the epson driver (it does not jockey the platen in roll or paper for that matter).. you can still run it in roll mode if you prefer so.. the other mode requires one additional modification...but we feel it is the best method as far as registration is concerned (being belt driven) as thats what we are leaning towards (explanation forthcoming)

if you will notice in most commercial printer video demos at start of print it moves the platen or jockeys the platen searching this edge...registration will be as good and accurate as the epson itself (this is great for doing dark);) and yes ek has a hand in the adjustments etc within the rip..cant go into the details on that end..as agreed with them and i could,nt really tell you how it works anyway... i dont have much knowledge of the drivers etc and how they work..and frankly i prefer to leave that end to the experts:p

by my experimentation and personal opinion i think most registration errors come in two forms..

1. being added firmware and the additionalphoto sensors they use to read platen position..

2. Backlash of the drive mechanism used... particulary belt drives due to stretching a bit over time with use.... and some screw drives which actually have a backlash adjustment nut..


we have tested three drives hardcore.. the rack and pinion,conveyor belt (large) and a belt drive..

there are pros and cons to all, i really dont like the whinning noise the rack and pinion makes..i believe this is due to the almost straight cut gears.. (sounds like a super charger..lol) no on a serious note it sounds similar to the screw drives..its very distinct.. im not quite sure i would like to hear this day in and out:rolleyes: while printing.. the belt is much quieter with both small or large apps.. but you get more back lash, and would have to tention it a few times a year i would guess..but your design options are much greater with a small belt drive (timing belt) in my opinion your limited using a large conveyor (cant place anything in its path) which limits design options... and with the new found registration we are leaning towards the timing belt.. (in my case simply because i dont enjoy this whinning noise of the rack and pinion.. we have a very very nice design using the timing belt (something never seen before on any dtg to my knowledge... but its yet to be deceided which one we will go with-we will flip a coin on it tommorro eve.

:D we would like things to be as perfect as perfect can be coupled with simple..lol im not easily satisfied until all options are explored and i beleive we have done so to the best of our knowledge mechanically on the drive mech.. and working to use all original equipment from the printer..

and yes it is still 100% epson (no additional firmware)

moffett8 August 24th, 2010 10:45 AM

Re: Mission accomplished "license to thrill"
 
I tried this in one of my DTG printers too.

Philip


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