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Re: OpenDTG Pretreater Control Board

 by MetalGuru ¦  Thu Apr 20, 2017 12:40 pm ¦  Forum: DIY Pretreat Machine ¦  Topic: OpenDTG Pretreater Control Board ¦  Replies: 61 ¦  Views: 6161

I have been using my new pretreat machine in full production for past couple days.  WOW! My life just got better lol. Even pretreat and very consistant every spray. My machine will do fine for now, but after building one, I have some things that I might change. I would use a 1/4 tube from the pump t...

Re: OpenDTG Pretreater Control Board

 by MetalGuru ¦  Thu Apr 13, 2017 8:54 pm ¦  Forum: DIY Pretreat Machine ¦  Topic: OpenDTG Pretreater Control Board ¦  Replies: 61 ¦  Views: 6161

I cut and pasted this part under the length part in case 5.  speedval = analogRead(speedpot);   speedval = map(speedval, 0, 1023, 1050, 50); // was 1250 and 450 The motor/nozzle now moves very fast! Thank you! I would probably recommend that as the best way to have the code. Dont think there is much...

Re: OpenDTG Pretreater Control Board

 by MetalGuru ¦  Thu Apr 13, 2017 9:39 am ¦  Forum: DIY Pretreat Machine ¦  Topic: OpenDTG Pretreater Control Board ¦  Replies: 61 ¦  Views: 6161

Great!

I will try this tonight.

At current settings/max speed, I am getting about 20g of pretreat. I would like to get it to a minimum of 12-15g hopefully.

Re: OpenDTG Pretreater Control Board

 by MetalGuru ¦  Wed Apr 12, 2017 10:15 pm ¦  Forum: DIY Pretreat Machine ¦  Topic: OpenDTG Pretreater Control Board ¦  Replies: 61 ¦  Views: 6161

Thank you for the info! So I set 50 to 10 and it did speed up the motor a little bit, however it is still not fast enough. I am running a nema 17 using 12v powersupply to the Pretreat board. I also experimented with changing the ejectspeed on the settings tab. I changed it from 200 to 80. The motor ...

Re: OpenDTG Pretreater Control Board

 by MetalGuru ¦  Tue Apr 11, 2017 10:38 am ¦  Forum: DIY Pretreat Machine ¦  Topic: OpenDTG Pretreater Control Board ¦  Replies: 61 ¦  Views: 6161

What is the code I need to change to increase the max speed of the motor?

Thank you!

Re: OpenDTG Pretreater Control Board

 by MetalGuru ¦  Sat Apr 08, 2017 4:18 pm ¦  Forum: DIY Pretreat Machine ¦  Topic: OpenDTG Pretreater Control Board ¦  Replies: 61 ¦  Views: 6161

My new nozzle came in, and I am now getting a great even spray! I am using the 95015evs now. It is even across the whole spray area @ 60PSI. The reason it was uneven on the edges previously was because  I was using the wrong type of nozzle tip. I am very happy now. I got the electronics box from Ama...

Re: OpenDTG Pretreater Control Board

 by MetalGuru ¦  Tue Mar 28, 2017 3:59 pm ¦  Forum: DIY Pretreat Machine ¦  Topic: OpenDTG Pretreater Control Board ¦  Replies: 61 ¦  Views: 6161

The solenoid works well. Not sure how long it will last, but it does work.

The assembly does drip a little bit after shutoff sometimes. Not enough for me to worry about it tho.

Re: OpenDTG Pretreater Control Board

 by MetalGuru ¦  Tue Mar 28, 2017 3:04 pm ¦  Forum: DIY Pretreat Machine ¦  Topic: OpenDTG Pretreater Control Board ¦  Replies: 61 ¦  Views: 6161

One recommendation I would add is to turn off the motor when it is resting at the front.

Similar to the DTG code.

Not sure if I could just copy that part from the dtg code, or if there would be a more specific way to do it.

Re: OpenDTG Pretreater Control Board

 by MetalGuru ¦  Tue Mar 28, 2017 3:01 pm ¦  Forum: DIY Pretreat Machine ¦  Topic: OpenDTG Pretreater Control Board ¦  Replies: 61 ¦  Views: 6161

Here are some pictures of the pretreat machine so far. Still in prototype stage for looks, but it works well. Assembled it with openbuild parts I had lying around. May need to change the pump I have, not sure tho. I have a 60psi pump and the spray pattern is dense in the middle and lighter on the ed...

Re: OpenDtg DIY DTG with Motor Shield Question

 by MetalGuru ¦  Mon Mar 27, 2017 7:20 pm ¦  Forum: Arduino Open Source DIY DTG ¦  Topic: OpenDtg DIY DTG with Motor Shield Question ¦  Replies: 7 ¦  Views: 740

Once you go over 32,767 that is the limit for the integer. You would need to change the code to an unsigned int so you can go up to 65,535 So maybe it's acting goofy because of that. Thank you! I changed all the integer labels to long-except one that is set to 0 int changed to long then added an L ...